diff options
Diffstat (limited to 'src')
52 files changed, 7459 insertions, 7128 deletions
diff --git a/src/backend/access/brin/brin.c b/src/backend/access/brin/brin.c index dcf2d2c4b50..20b7d65b948 100644 --- a/src/backend/access/brin/brin.c +++ b/src/backend/access/brin/brin.c @@ -36,6 +36,7 @@ #include "utils/acl.h" #include "utils/builtins.h" #include "utils/datum.h" +#include "utils/guc.h" #include "utils/index_selfuncs.h" #include "utils/memutils.h" #include "utils/rel.h" diff --git a/src/backend/access/table/tableamapi.c b/src/backend/access/table/tableamapi.c index 873d961bf48..92d9cf31db7 100644 --- a/src/backend/access/table/tableamapi.c +++ b/src/backend/access/table/tableamapi.c @@ -20,6 +20,7 @@ #include "commands/defrem.h" #include "miscadmin.h" #include "utils/fmgroids.h" +#include "utils/guc_hooks.h" #include "utils/memutils.h" #include "utils/syscache.h" diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index 7a710e6490d..81d339d57d7 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -97,7 +97,8 @@ #include "storage/smgr.h" #include "storage/spin.h" #include "storage/sync.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" +#include "utils/guc_tables.h" #include "utils/memutils.h" #include "utils/ps_status.h" #include "utils/relmapper.h" @@ -105,6 +106,7 @@ #include "utils/snapmgr.h" #include "utils/timeout.h" #include "utils/timestamp.h" +#include "utils/varlena.h" extern uint32 bootstrap_data_checksum_version; @@ -161,6 +163,12 @@ static double CheckPointDistanceEstimate = 0; static double PrevCheckPointDistance = 0; /* + * Track whether there were any deferred checks for custom resource managers + * specified in wal_consistency_checking. + */ +static bool check_wal_consistency_checking_deferred = false; + +/* * GUC support */ const struct config_enum_entry sync_method_options[] = { @@ -4305,6 +4313,172 @@ check_wal_buffers(int *newval, void **extra, GucSource source) } /* + * GUC check_hook for wal_consistency_checking + */ +bool +check_wal_consistency_checking(char **newval, void **extra, GucSource source) +{ + char *rawstring; + List *elemlist; + ListCell *l; + bool newwalconsistency[RM_MAX_ID + 1]; + + /* Initialize the array */ + MemSet(newwalconsistency, 0, (RM_MAX_ID + 1) * sizeof(bool)); + + /* Need a modifiable copy of string */ + rawstring = pstrdup(*newval); + + /* Parse string into list of identifiers */ + if (!SplitIdentifierString(rawstring, ',', &elemlist)) + { + /* syntax error in list */ + GUC_check_errdetail("List syntax is invalid."); + pfree(rawstring); + list_free(elemlist); + return false; + } + + foreach(l, elemlist) + { + char *tok = (char *) lfirst(l); + int rmid; + + /* Check for 'all'. */ + if (pg_strcasecmp(tok, "all") == 0) + { + for (rmid = 0; rmid <= RM_MAX_ID; rmid++) + if (RmgrIdExists(rmid) && GetRmgr(rmid).rm_mask != NULL) + newwalconsistency[rmid] = true; + } + else + { + /* Check if the token matches any known resource manager. */ + bool found = false; + + for (rmid = 0; rmid <= RM_MAX_ID; rmid++) + { + if (RmgrIdExists(rmid) && GetRmgr(rmid).rm_mask != NULL && + pg_strcasecmp(tok, GetRmgr(rmid).rm_name) == 0) + { + newwalconsistency[rmid] = true; + found = true; + break; + } + } + if (!found) + { + /* + * During startup, it might be a not-yet-loaded custom + * resource manager. Defer checking until + * InitializeWalConsistencyChecking(). + */ + if (!process_shared_preload_libraries_done) + { + check_wal_consistency_checking_deferred = true; + } + else + { + GUC_check_errdetail("Unrecognized key word: \"%s\".", tok); + pfree(rawstring); + list_free(elemlist); + return false; + } + } + } + } + + pfree(rawstring); + list_free(elemlist); + + /* assign new value */ + *extra = guc_malloc(ERROR, (RM_MAX_ID + 1) * sizeof(bool)); + memcpy(*extra, newwalconsistency, (RM_MAX_ID + 1) * sizeof(bool)); + return true; +} + +/* + * GUC assign_hook for wal_consistency_checking + */ +void +assign_wal_consistency_checking(const char *newval, void *extra) +{ + /* + * If some checks were deferred, it's possible that the checks will fail + * later during InitializeWalConsistencyChecking(). But in that case, the + * postmaster will exit anyway, so it's safe to proceed with the + * assignment. + * + * Any built-in resource managers specified are assigned immediately, + * which affects WAL created before shared_preload_libraries are + * processed. Any custom resource managers specified won't be assigned + * until after shared_preload_libraries are processed, but that's OK + * because WAL for a custom resource manager can't be written before the + * module is loaded anyway. + */ + wal_consistency_checking = extra; +} + +/* + * InitializeWalConsistencyChecking: run after loading custom resource managers + * + * If any unknown resource managers were specified in the + * wal_consistency_checking GUC, processing was deferred. Now that + * shared_preload_libraries have been loaded, process wal_consistency_checking + * again. + */ +void +InitializeWalConsistencyChecking(void) +{ + Assert(process_shared_preload_libraries_done); + + if (check_wal_consistency_checking_deferred) + { + struct config_generic *guc; + + guc = find_option("wal_consistency_checking", false, false, ERROR); + + check_wal_consistency_checking_deferred = false; + + set_config_option_ext("wal_consistency_checking", + wal_consistency_checking_string, + guc->scontext, guc->source, guc->srole, + GUC_ACTION_SET, true, ERROR, false); + + /* checking should not be deferred again */ + Assert(!check_wal_consistency_checking_deferred); + } +} + +/* + * GUC show_hook for archive_command + */ +const char * +show_archive_command(void) +{ + if (XLogArchivingActive()) + return XLogArchiveCommand; + else + return "(disabled)"; +} + +/* + * GUC show_hook for in_hot_standby + */ +const char * +show_in_hot_standby(void) +{ + /* + * We display the actual state based on shared memory, so that this GUC + * reports up-to-date state if examined intra-query. The underlying + * variable (in_hot_standby_guc) changes only when we transmit a new value + * to the client. + */ + return RecoveryInProgress() ? "on" : "off"; +} + + +/* * Read the control file, set respective GUCs. * * This is to be called during startup, including a crash recovery cycle, diff --git a/src/backend/access/transam/xlogprefetcher.c b/src/backend/access/transam/xlogprefetcher.c index 368aa73ce20..342960263cb 100644 --- a/src/backend/access/transam/xlogprefetcher.c +++ b/src/backend/access/transam/xlogprefetcher.c @@ -44,7 +44,7 @@ #include "storage/bufmgr.h" #include "storage/shmem.h" #include "storage/smgr.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/hsearch.h" /* diff --git a/src/backend/access/transam/xlogrecovery.c b/src/backend/access/transam/xlogrecovery.c index 9a80084a685..e00ff14d49b 100644 --- a/src/backend/access/transam/xlogrecovery.c +++ b/src/backend/access/transam/xlogrecovery.c @@ -48,6 +48,7 @@ #include "pgstat.h" #include "postmaster/bgwriter.h" #include "postmaster/startup.h" +#include "replication/slot.h" #include "replication/walreceiver.h" #include "storage/fd.h" #include "storage/ipc.h" @@ -57,7 +58,9 @@ #include "storage/procarray.h" #include "storage/spin.h" #include "utils/builtins.h" -#include "utils/guc.h" +#include "utils/datetime.h" +#include "utils/guc_hooks.h" +#include "utils/pg_lsn.h" #include "utils/ps_status.h" #include "utils/pg_rusage.h" @@ -4616,3 +4619,315 @@ RecoveryRequiresIntParameter(const char *param_name, int currValue, int minValue errhint("You can restart the server after making the necessary configuration changes."))); } } + + +/* + * GUC check_hook for primary_slot_name + */ +bool +check_primary_slot_name(char **newval, void **extra, GucSource source) +{ + if (*newval && strcmp(*newval, "") != 0 && + !ReplicationSlotValidateName(*newval, WARNING)) + return false; + + return true; +} + +/* + * Recovery target settings: Only one of the several recovery_target* settings + * may be set. Setting a second one results in an error. The global variable + * recoveryTarget tracks which kind of recovery target was chosen. Other + * variables store the actual target value (for example a string or a xid). + * The assign functions of the parameters check whether a competing parameter + * was already set. But we want to allow setting the same parameter multiple + * times. We also want to allow unsetting a parameter and setting a different + * one, so we unset recoveryTarget when the parameter is set to an empty + * string. + * + * XXX this code is broken by design. Throwing an error from a GUC assign + * hook breaks fundamental assumptions of guc.c. So long as all the variables + * for which this can happen are PGC_POSTMASTER, the consequences are limited, + * since we'd just abort postmaster startup anyway. Nonetheless it's likely + * that we have odd behaviors such as unexpected GUC ordering dependencies. + */ + +static void +pg_attribute_noreturn() +error_multiple_recovery_targets(void) +{ + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("multiple recovery targets specified"), + errdetail("At most one of recovery_target, recovery_target_lsn, recovery_target_name, recovery_target_time, recovery_target_xid may be set."))); +} + +/* + * GUC check_hook for recovery_target + */ +bool +check_recovery_target(char **newval, void **extra, GucSource source) +{ + if (strcmp(*newval, "immediate") != 0 && strcmp(*newval, "") != 0) + { + GUC_check_errdetail("The only allowed value is \"immediate\"."); + return false; + } + return true; +} + +/* + * GUC assign_hook for recovery_target + */ +void +assign_recovery_target(const char *newval, void *extra) +{ + if (recoveryTarget != RECOVERY_TARGET_UNSET && + recoveryTarget != RECOVERY_TARGET_IMMEDIATE) + error_multiple_recovery_targets(); + + if (newval && strcmp(newval, "") != 0) + recoveryTarget = RECOVERY_TARGET_IMMEDIATE; + else + recoveryTarget = RECOVERY_TARGET_UNSET; +} + +/* + * GUC check_hook for recovery_target_lsn + */ +bool +check_recovery_target_lsn(char **newval, void **extra, GucSource source) +{ + if (strcmp(*newval, "") != 0) + { + XLogRecPtr lsn; + XLogRecPtr *myextra; + bool have_error = false; + + lsn = pg_lsn_in_internal(*newval, &have_error); + if (have_error) + return false; + + myextra = (XLogRecPtr *) guc_malloc(ERROR, sizeof(XLogRecPtr)); + *myextra = lsn; + *extra = (void *) myextra; + } + return true; +} + +/* + * GUC assign_hook for recovery_target_lsn + */ +void +assign_recovery_target_lsn(const char *newval, void *extra) +{ + if (recoveryTarget != RECOVERY_TARGET_UNSET && + recoveryTarget != RECOVERY_TARGET_LSN) + error_multiple_recovery_targets(); + + if (newval && strcmp(newval, "") != 0) + { + recoveryTarget = RECOVERY_TARGET_LSN; + recoveryTargetLSN = *((XLogRecPtr *) extra); + } + else + recoveryTarget = RECOVERY_TARGET_UNSET; +} + +/* + * GUC check_hook for recovery_target_name + */ +bool +check_recovery_target_name(char **newval, void **extra, GucSource source) +{ + /* Use the value of newval directly */ + if (strlen(*newval) >= MAXFNAMELEN) + { + GUC_check_errdetail("%s is too long (maximum %d characters).", + "recovery_target_name", MAXFNAMELEN - 1); + return false; + } + return true; +} + +/* + * GUC assign_hook for recovery_target_name + */ +void +assign_recovery_target_name(const char *newval, void *extra) +{ + if (recoveryTarget != RECOVERY_TARGET_UNSET && + recoveryTarget != RECOVERY_TARGET_NAME) + error_multiple_recovery_targets(); + + if (newval && strcmp(newval, "") != 0) + { + recoveryTarget = RECOVERY_TARGET_NAME; + recoveryTargetName = newval; + } + else + recoveryTarget = RECOVERY_TARGET_UNSET; +} + +/* + * GUC check_hook for recovery_target_time + * + * The interpretation of the recovery_target_time string can depend on the + * time zone setting, so we need to wait until after all GUC processing is + * done before we can do the final parsing of the string. This check function + * only does a parsing pass to catch syntax errors, but we store the string + * and parse it again when we need to use it. + */ +bool +check_recovery_target_time(char **newval, void **extra, GucSource source) +{ + if (strcmp(*newval, "") != 0) + { + /* reject some special values */ + if (strcmp(*newval, "now") == 0 || + strcmp(*newval, "today") == 0 || + strcmp(*newval, "tomorrow") == 0 || + strcmp(*newval, "yesterday") == 0) + { + return false; + } + + /* + * parse timestamp value (see also timestamptz_in()) + */ + { + char *str = *newval; + fsec_t fsec; + struct pg_tm tt, + *tm = &tt; + int tz; + int dtype; + int nf; + int dterr; + char *field[MAXDATEFIELDS]; + int ftype[MAXDATEFIELDS]; + char workbuf[MAXDATELEN + MAXDATEFIELDS]; + TimestampTz timestamp; + + dterr = ParseDateTime(str, workbuf, sizeof(workbuf), + field, ftype, MAXDATEFIELDS, &nf); + if (dterr == 0) + dterr = DecodeDateTime(field, ftype, nf, &dtype, tm, &fsec, &tz); + if (dterr != 0) + return false; + if (dtype != DTK_DATE) + return false; + + if (tm2timestamp(tm, fsec, &tz, ×tamp) != 0) + { + GUC_check_errdetail("timestamp out of range: \"%s\"", str); + return false; + } + } + } + return true; +} + +/* + * GUC assign_hook for recovery_target_time + */ +void +assign_recovery_target_time(const char *newval, void *extra) +{ + if (recoveryTarget != RECOVERY_TARGET_UNSET && + recoveryTarget != RECOVERY_TARGET_TIME) + error_multiple_recovery_targets(); + + if (newval && strcmp(newval, "") != 0) + recoveryTarget = RECOVERY_TARGET_TIME; + else + recoveryTarget = RECOVERY_TARGET_UNSET; +} + +/* + * GUC check_hook for recovery_target_timeline + */ +bool +check_recovery_target_timeline(char **newval, void **extra, GucSource source) +{ + RecoveryTargetTimeLineGoal rttg; + RecoveryTargetTimeLineGoal *myextra; + + if (strcmp(*newval, "current") == 0) + rttg = RECOVERY_TARGET_TIMELINE_CONTROLFILE; + else if (strcmp(*newval, "latest") == 0) + rttg = RECOVERY_TARGET_TIMELINE_LATEST; + else + { + rttg = RECOVERY_TARGET_TIMELINE_NUMERIC; + + errno = 0; + strtoul(*newval, NULL, 0); + if (errno == EINVAL || errno == ERANGE) + { + GUC_check_errdetail("recovery_target_timeline is not a valid number."); + return false; + } + } + + myextra = (RecoveryTargetTimeLineGoal *) guc_malloc(ERROR, sizeof(RecoveryTargetTimeLineGoal)); + *myextra = rttg; + *extra = (void *) myextra; + + return true; +} + +/* + * GUC assign_hook for recovery_target_timeline + */ +void +assign_recovery_target_timeline(const char *newval, void *extra) +{ + recoveryTargetTimeLineGoal = *((RecoveryTargetTimeLineGoal *) extra); + if (recoveryTargetTimeLineGoal == RECOVERY_TARGET_TIMELINE_NUMERIC) + recoveryTargetTLIRequested = (TimeLineID) strtoul(newval, NULL, 0); + else + recoveryTargetTLIRequested = 0; +} + +/* + * GUC check_hook for recovery_target_xid + */ +bool +check_recovery_target_xid(char **newval, void **extra, GucSource source) +{ + if (strcmp(*newval, "") != 0) + { + TransactionId xid; + TransactionId *myextra; + + errno = 0; + xid = (TransactionId) strtou64(*newval, NULL, 0); + if (errno == EINVAL || errno == ERANGE) + return false; + + myextra = (TransactionId *) guc_malloc(ERROR, sizeof(TransactionId)); + *myextra = xid; + *extra = (void *) myextra; + } + return true; +} + +/* + * GUC assign_hook for recovery_target_xid + */ +void +assign_recovery_target_xid(const char *newval, void *extra) +{ + if (recoveryTarget != RECOVERY_TARGET_UNSET && + recoveryTarget != RECOVERY_TARGET_XID) + error_multiple_recovery_targets(); + + if (newval && strcmp(newval, "") != 0) + { + recoveryTarget = RECOVERY_TARGET_XID; + recoveryTargetXid = *((TransactionId *) extra); + } + else + recoveryTarget = RECOVERY_TARGET_UNSET; +} diff --git a/src/backend/backup/basebackup.c b/src/backend/backup/basebackup.c index 3bf3aa6faab..2bb831a3cd4 100644 --- a/src/backend/backup/basebackup.c +++ b/src/backend/backup/basebackup.c @@ -40,6 +40,7 @@ #include "storage/ipc.h" #include "storage/reinit.h" #include "utils/builtins.h" +#include "utils/guc.h" #include "utils/ps_status.h" #include "utils/relcache.h" #include "utils/resowner.h" diff --git a/src/backend/catalog/aclchk.c b/src/backend/catalog/aclchk.c index 17ff617fba4..b20974bbebf 100644 --- a/src/backend/catalog/aclchk.c +++ b/src/backend/catalog/aclchk.c @@ -74,6 +74,7 @@ #include "utils/aclchk_internal.h" #include "utils/builtins.h" #include "utils/fmgroids.h" +#include "utils/guc.h" #include "utils/lsyscache.h" #include "utils/rel.h" #include "utils/syscache.h" diff --git a/src/backend/catalog/namespace.c b/src/backend/catalog/namespace.c index fafb9349cce..dbb4b008a0b 100644 --- a/src/backend/catalog/namespace.c +++ b/src/backend/catalog/namespace.c @@ -51,7 +51,7 @@ #include "utils/acl.h" #include "utils/builtins.h" #include "utils/catcache.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/inval.h" #include "utils/lsyscache.h" #include "utils/memutils.h" diff --git a/src/backend/catalog/pg_parameter_acl.c b/src/backend/catalog/pg_parameter_acl.c index 0570e811d1e..37f6217df55 100644 --- a/src/backend/catalog/pg_parameter_acl.c +++ b/src/backend/catalog/pg_parameter_acl.c @@ -21,6 +21,7 @@ #include "catalog/pg_namespace.h" #include "catalog/pg_parameter_acl.h" #include "utils/builtins.h" +#include "utils/guc.h" #include "utils/pg_locale.h" #include "utils/rel.h" #include "utils/syscache.h" diff --git a/src/backend/commands/cluster.c b/src/backend/commands/cluster.c index dc35b029102..1976a373efa 100644 --- a/src/backend/commands/cluster.c +++ b/src/backend/commands/cluster.c @@ -49,6 +49,7 @@ #include "storage/predicate.h" #include "utils/acl.h" #include "utils/fmgroids.h" +#include "utils/guc.h" #include "utils/inval.h" #include "utils/lsyscache.h" #include "utils/memutils.h" diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c index 9167bab0c55..cf98d9e600b 100644 --- a/src/backend/commands/indexcmds.c +++ b/src/backend/commands/indexcmds.c @@ -57,6 +57,7 @@ #include "utils/acl.h" #include "utils/builtins.h" #include "utils/fmgroids.h" +#include "utils/guc.h" #include "utils/inval.h" #include "utils/lsyscache.h" #include "utils/memutils.h" diff --git a/src/backend/commands/tablespace.c b/src/backend/commands/tablespace.c index f260b484fc4..b69ff37dbbd 100644 --- a/src/backend/commands/tablespace.c +++ b/src/backend/commands/tablespace.c @@ -79,7 +79,7 @@ #include "utils/acl.h" #include "utils/builtins.h" #include "utils/fmgroids.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/lsyscache.h" #include "utils/memutils.h" #include "utils/rel.h" diff --git a/src/backend/commands/trigger.c b/src/backend/commands/trigger.c index 28c3dcd0f76..5ad18d2de4b 100644 --- a/src/backend/commands/trigger.c +++ b/src/backend/commands/trigger.c @@ -55,9 +55,11 @@ #include "utils/builtins.h" #include "utils/bytea.h" #include "utils/fmgroids.h" +#include "utils/guc_hooks.h" #include "utils/inval.h" #include "utils/lsyscache.h" #include "utils/memutils.h" +#include "utils/plancache.h" #include "utils/rel.h" #include "utils/snapmgr.h" #include "utils/syscache.h" @@ -6500,6 +6502,20 @@ done: } /* + * GUC assign_hook for session_replication_role + */ +void +assign_session_replication_role(int newval, void *extra) +{ + /* + * Must flush the plan cache when changing replication role; but don't + * flush unnecessarily. + */ + if (SessionReplicationRole != newval) + ResetPlanCache(); +} + +/* * SQL function pg_trigger_depth() */ Datum diff --git a/src/backend/commands/variable.c b/src/backend/commands/variable.c index e5ddcda0b4a..c795cb7a29c 100644 --- a/src/backend/commands/variable.c +++ b/src/backend/commands/variable.c @@ -22,15 +22,23 @@ #include "access/parallel.h" #include "access/xact.h" #include "access/xlog.h" +#include "access/xlogprefetcher.h" #include "catalog/pg_authid.h" -#include "commands/variable.h" +#include "common/string.h" #include "mb/pg_wchar.h" #include "miscadmin.h" +#include "postmaster/postmaster.h" +#include "postmaster/syslogger.h" +#include "storage/bufmgr.h" #include "utils/acl.h" +#include "utils/backend_status.h" #include "utils/builtins.h" +#include "utils/datetime.h" +#include "utils/guc_hooks.h" #include "utils/snapmgr.h" #include "utils/syscache.h" #include "utils/timestamp.h" +#include "utils/tzparser.h" #include "utils/varlena.h" /* @@ -467,6 +475,56 @@ show_log_timezone(void) /* + * TIMEZONE_ABBREVIATIONS + */ + +/* + * GUC check_hook for assign_timezone_abbreviations + */ +bool +check_timezone_abbreviations(char **newval, void **extra, GucSource source) +{ + /* + * The boot_val for timezone_abbreviations is NULL. When we see that we + * just do nothing. If the value isn't overridden from the config file + * then pg_timezone_abbrev_initialize() will eventually replace it with + * "Default". This hack has two purposes: to avoid wasting cycles loading + * values that might soon be overridden from the config file, and to avoid + * trying to read the timezone abbrev files during InitializeGUCOptions(). + * The latter doesn't work in an EXEC_BACKEND subprocess because + * my_exec_path hasn't been set yet and so we can't locate PGSHAREDIR. + */ + if (*newval == NULL) + { + Assert(source == PGC_S_DEFAULT); + return true; + } + + /* OK, load the file and produce a malloc'd TimeZoneAbbrevTable */ + *extra = load_tzoffsets(*newval); + + /* tzparser.c returns NULL on failure, reporting via GUC_check_errmsg */ + if (!*extra) + return false; + + return true; +} + +/* + * GUC assign_hook for assign_timezone_abbreviations + */ +void +assign_timezone_abbreviations(const char *newval, void *extra) +{ + /* Do nothing for the boot_val default of NULL */ + if (!extra) + return; + + InstallTimeZoneAbbrevs((TimeZoneAbbrevTable *) extra); +} + + +/* * SET TRANSACTION READ ONLY and SET TRANSACTION READ WRITE * * We allow idempotent changes (r/w -> r/w and r/o -> r/o) at any time, and @@ -522,7 +580,7 @@ check_transaction_read_only(bool *newval, void **extra, GucSource source) * As in check_transaction_read_only, allow it if not inside a transaction. */ bool -check_XactIsoLevel(int *newval, void **extra, GucSource source) +check_transaction_isolation(int *newval, void **extra, GucSource source) { int newXactIsoLevel = *newval; @@ -933,3 +991,212 @@ show_role(void) /* Otherwise we can just use the GUC string */ return role_string ? role_string : "none"; } + + +/* + * PATH VARIABLES + * + * check_canonical_path is used for log_directory and some other GUCs where + * all we want to do is canonicalize the represented path name. + */ + +bool +check_canonical_path(char **newval, void **extra, GucSource source) +{ + /* + * Since canonicalize_path never enlarges the string, we can just modify + * newval in-place. But watch out for NULL, which is the default value + * for external_pid_file. + */ + if (*newval) + canonicalize_path(*newval); + return true; +} + + +/* + * MISCELLANEOUS + */ + +/* + * GUC check_hook for application_name + */ +bool +check_application_name(char **newval, void **extra, GucSource source) +{ + char *clean; + + /* Only allow clean ASCII chars in the application name */ + clean = pg_clean_ascii(*newval, MCXT_ALLOC_NO_OOM); + if (!clean) + return false; + + clean = guc_strdup(WARNING, clean); + if (!clean) + return false; + + *newval = clean; + return true; +} + +/* + * GUC assign_hook for application_name + */ +void +assign_application_name(const char *newval, void *extra) +{ + /* Update the pg_stat_activity view */ + pgstat_report_appname(newval); +} + +/* + * GUC check_hook for cluster_name + */ +bool +check_cluster_name(char **newval, void **extra, GucSource source) +{ + char *clean; + + /* Only allow clean ASCII chars in the cluster name */ + clean = pg_clean_ascii(*newval, MCXT_ALLOC_NO_OOM); + if (!clean) + return false; + + clean = guc_strdup(WARNING, clean); + if (!clean) + return false; + + *newval = clean; + return true; +} + +/* + * GUC assign_hook for maintenance_io_concurrency + */ +void +assign_maintenance_io_concurrency(int newval, void *extra) +{ +#ifdef USE_PREFETCH + /* + * Reconfigure recovery prefetching, because a setting it depends on + * changed. + */ + maintenance_io_concurrency = newval; + if (AmStartupProcess()) + XLogPrefetchReconfigure(); +#endif +} + + +/* + * These show hooks just exist because we want to show the values in octal. + */ + +/* + * GUC show_hook for data_directory_mode + */ +const char * +show_data_directory_mode(void) +{ + static char buf[12]; + + snprintf(buf, sizeof(buf), "%04o", data_directory_mode); + return buf; +} + +/* + * GUC show_hook for log_file_mode + */ +const char * +show_log_file_mode(void) +{ + static char buf[12]; + + snprintf(buf, sizeof(buf), "%04o", Log_file_mode); + return buf; +} + +/* + * GUC show_hook for unix_socket_permissions + */ +const char * +show_unix_socket_permissions(void) +{ + static char buf[12]; + + snprintf(buf, sizeof(buf), "%04o", Unix_socket_permissions); + return buf; +} + + +/* + * These check hooks do nothing more than reject non-default settings + * in builds that don't support them. + */ + +bool +check_bonjour(bool *newval, void **extra, GucSource source) +{ +#ifndef USE_BONJOUR + if (*newval) + { + GUC_check_errmsg("Bonjour is not supported by this build"); + return false; + } +#endif + return true; +} + +bool +check_default_with_oids(bool *newval, void **extra, GucSource source) +{ + if (*newval) + { + /* check the GUC's definition for an explanation */ + GUC_check_errcode(ERRCODE_FEATURE_NOT_SUPPORTED); + GUC_check_errmsg("tables declared WITH OIDS are not supported"); + + return false; + } + + return true; +} + +bool +check_effective_io_concurrency(int *newval, void **extra, GucSource source) +{ +#ifndef USE_PREFETCH + if (*newval != 0) + { + GUC_check_errdetail("effective_io_concurrency must be set to 0 on platforms that lack posix_fadvise()."); + return false; + } +#endif /* USE_PREFETCH */ + return true; +} + +bool +check_maintenance_io_concurrency(int *newval, void **extra, GucSource source) +{ +#ifndef USE_PREFETCH + if (*newval != 0) + { + GUC_check_errdetail("maintenance_io_concurrency must be set to 0 on platforms that lack posix_fadvise()."); + return false; + } +#endif /* USE_PREFETCH */ + return true; +} + +bool +check_ssl(bool *newval, void **extra, GucSource source) +{ +#ifndef USE_SSL + if (*newval) + { + GUC_check_errmsg("SSL is not supported by this build"); + return false; + } +#endif + return true; +} diff --git a/src/backend/libpq/pqcomm.c b/src/backend/libpq/pqcomm.c index cba0caced73..ce56ab1d41d 100644 --- a/src/backend/libpq/pqcomm.c +++ b/src/backend/libpq/pqcomm.c @@ -78,7 +78,7 @@ #include "miscadmin.h" #include "port/pg_bswap.h" #include "storage/ipc.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/memutils.h" /* @@ -1915,6 +1915,108 @@ pq_settcpusertimeout(int timeout, Port *port) } /* + * GUC assign_hook for tcp_keepalives_idle + */ +void +assign_tcp_keepalives_idle(int newval, void *extra) +{ + /* + * The kernel API provides no way to test a value without setting it; and + * once we set it we might fail to unset it. So there seems little point + * in fully implementing the check-then-assign GUC API for these + * variables. Instead we just do the assignment on demand. + * pq_setkeepalivesidle reports any problems via ereport(LOG). + * + * This approach means that the GUC value might have little to do with the + * actual kernel value, so we use a show_hook that retrieves the kernel + * value rather than trusting GUC's copy. + */ + (void) pq_setkeepalivesidle(newval, MyProcPort); +} + +/* + * GUC show_hook for tcp_keepalives_idle + */ +const char * +show_tcp_keepalives_idle(void) +{ + /* See comments in assign_tcp_keepalives_idle */ + static char nbuf[16]; + + snprintf(nbuf, sizeof(nbuf), "%d", pq_getkeepalivesidle(MyProcPort)); + return nbuf; +} + +/* + * GUC assign_hook for tcp_keepalives_interval + */ +void +assign_tcp_keepalives_interval(int newval, void *extra) +{ + /* See comments in assign_tcp_keepalives_idle */ + (void) pq_setkeepalivesinterval(newval, MyProcPort); +} + +/* + * GUC show_hook for tcp_keepalives_interval + */ +const char * +show_tcp_keepalives_interval(void) +{ + /* See comments in assign_tcp_keepalives_idle */ + static char nbuf[16]; + + snprintf(nbuf, sizeof(nbuf), "%d", pq_getkeepalivesinterval(MyProcPort)); + return nbuf; +} + +/* + * GUC assign_hook for tcp_keepalives_count + */ +void +assign_tcp_keepalives_count(int newval, void *extra) +{ + /* See comments in assign_tcp_keepalives_idle */ + (void) pq_setkeepalivescount(newval, MyProcPort); +} + +/* + * GUC show_hook for tcp_keepalives_count + */ +const char * +show_tcp_keepalives_count(void) +{ + /* See comments in assign_tcp_keepalives_idle */ + static char nbuf[16]; + + snprintf(nbuf, sizeof(nbuf), "%d", pq_getkeepalivescount(MyProcPort)); + return nbuf; +} + +/* + * GUC assign_hook for tcp_user_timeout + */ +void +assign_tcp_user_timeout(int newval, void *extra) +{ + /* See comments in assign_tcp_keepalives_idle */ + (void) pq_settcpusertimeout(newval, MyProcPort); +} + +/* + * GUC show_hook for tcp_user_timeout + */ +const char * +show_tcp_user_timeout(void) +{ + /* See comments in assign_tcp_keepalives_idle */ + static char nbuf[16]; + + snprintf(nbuf, sizeof(nbuf), "%d", pq_gettcpusertimeout(MyProcPort)); + return nbuf; +} + +/* * Check if the client is still connected. */ bool diff --git a/src/backend/partitioning/partbounds.c b/src/backend/partitioning/partbounds.c index 091d6e886b6..57c9b51814c 100644 --- a/src/backend/partitioning/partbounds.c +++ b/src/backend/partitioning/partbounds.c @@ -31,6 +31,7 @@ #include "partitioning/partbounds.h" #include "partitioning/partdesc.h" #include "partitioning/partprune.h" +#include "utils/array.h" #include "utils/builtins.h" #include "utils/datum.h" #include "utils/fmgroids.h" diff --git a/src/backend/port/sysv_shmem.c b/src/backend/port/sysv_shmem.c index e62d4a618ea..97ce7b7c497 100644 --- a/src/backend/port/sysv_shmem.c +++ b/src/backend/port/sysv_shmem.c @@ -34,7 +34,7 @@ #include "storage/fd.h" #include "storage/ipc.h" #include "storage/pg_shmem.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/pidfile.h" @@ -571,6 +571,23 @@ GetHugePageSize(Size *hugepagesize, int *mmap_flags) } /* + * GUC check_hook for huge_page_size + */ +bool +check_huge_page_size(int *newval, void **extra, GucSource source) +{ +#if !(defined(MAP_HUGE_MASK) && defined(MAP_HUGE_SHIFT)) + /* Recent enough Linux only, for now. See GetHugePageSize(). */ + if (*newval != 0) + { + GUC_check_errdetail("huge_page_size must be 0 on this platform."); + return false; + } +#endif + return true; +} + +/* * Creates an anonymous mmap()ed shared memory segment. * * Pass the requested size in *size. This function will modify *size to the diff --git a/src/backend/port/win32_shmem.c b/src/backend/port/win32_shmem.c index 6cf69411db1..d3c9b0f0987 100644 --- a/src/backend/port/win32_shmem.c +++ b/src/backend/port/win32_shmem.c @@ -16,6 +16,8 @@ #include "storage/dsm.h" #include "storage/ipc.h" #include "storage/pg_shmem.h" +#include "utils/guc_hooks.h" + /* * Early in a process's life, Windows asynchronously creates threads for the @@ -619,3 +621,17 @@ GetHugePageSize(Size *hugepagesize, int *mmap_flags) if (mmap_flags) *mmap_flags = 0; } + +/* + * GUC check_hook for huge_page_size + */ +bool +check_huge_page_size(int *newval, void **extra, GucSource source) +{ + if (*newval != 0) + { + GUC_check_errdetail("huge_page_size must be 0 on this platform."); + return false; + } + return true; +} diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c index 9dc6bf9477f..1e90b72b740 100644 --- a/src/backend/postmaster/autovacuum.c +++ b/src/backend/postmaster/autovacuum.c @@ -99,6 +99,7 @@ #include "tcop/tcopprot.h" #include "utils/fmgroids.h" #include "utils/fmgrprotos.h" +#include "utils/guc_hooks.h" #include "utils/lsyscache.h" #include "utils/memutils.h" #include "utils/ps_status.h" @@ -3374,3 +3375,29 @@ AutoVacuumShmemInit(void) else Assert(found); } + +/* + * GUC check_hook for autovacuum_work_mem + */ +bool +check_autovacuum_work_mem(int *newval, void **extra, GucSource source) +{ + /* + * -1 indicates fallback. + * + * If we haven't yet changed the boot_val default of -1, just let it be. + * Autovacuum will look to maintenance_work_mem instead. + */ + if (*newval == -1) + return true; + + /* + * We clamp manually-set values to at least 1MB. Since + * maintenance_work_mem is always set to at least this value, do the same + * here. + */ + if (*newval < 1024) + *newval = 1024; + + return true; +} diff --git a/src/backend/replication/repl_gram.y b/src/backend/replication/repl_gram.y index 8ff6ab362fd..fe1ec2bc810 100644 --- a/src/backend/replication/repl_gram.y +++ b/src/backend/replication/repl_gram.y @@ -17,6 +17,7 @@ #include "access/xlogdefs.h" #include "nodes/makefuncs.h" +#include "nodes/parsenodes.h" #include "nodes/replnodes.h" #include "replication/walsender.h" #include "replication/walsender_private.h" diff --git a/src/backend/replication/repl_scanner.l b/src/backend/replication/repl_scanner.l index 23fcb2a11d1..72ef12225ea 100644 --- a/src/backend/replication/repl_scanner.l +++ b/src/backend/replication/repl_scanner.l @@ -15,6 +15,7 @@ */ #include "postgres.h" +#include "nodes/parsenodes.h" #include "utils/builtins.h" #include "parser/scansup.h" diff --git a/src/backend/replication/syncrep.c b/src/backend/replication/syncrep.c index ce163b99e95..e360d925b0d 100644 --- a/src/backend/replication/syncrep.c +++ b/src/backend/replication/syncrep.c @@ -84,6 +84,7 @@ #include "storage/proc.h" #include "tcop/tcopprot.h" #include "utils/builtins.h" +#include "utils/guc_hooks.h" #include "utils/ps_status.h" /* User-settable parameters for sync rep */ diff --git a/src/backend/replication/syncrep_gram.y b/src/backend/replication/syncrep_gram.y index c18ddb2e9bc..4a8b9f247bd 100644 --- a/src/backend/replication/syncrep_gram.y +++ b/src/backend/replication/syncrep_gram.y @@ -14,6 +14,7 @@ */ #include "postgres.h" +#include "nodes/pg_list.h" #include "replication/syncrep.h" /* Result of parsing is returned in one of these two variables */ diff --git a/src/backend/replication/syncrep_scanner.l b/src/backend/replication/syncrep_scanner.l index bdb1a3391cf..2f942357f9d 100644 --- a/src/backend/replication/syncrep_scanner.l +++ b/src/backend/replication/syncrep_scanner.l @@ -16,6 +16,7 @@ #include "postgres.h" #include "lib/stringinfo.h" +#include "nodes/pg_list.h" /* * NB: include syncrep_gram.h only AFTER including syncrep.h, because syncrep.h diff --git a/src/backend/storage/buffer/localbuf.c b/src/backend/storage/buffer/localbuf.c index 98530078a6d..30d67d1c40d 100644 --- a/src/backend/storage/buffer/localbuf.c +++ b/src/backend/storage/buffer/localbuf.c @@ -20,7 +20,7 @@ #include "executor/instrument.h" #include "storage/buf_internals.h" #include "storage/bufmgr.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/memutils.h" #include "utils/resowner_private.h" @@ -484,6 +484,24 @@ InitLocalBuffers(void) } /* + * GUC check_hook for temp_buffers + */ +bool +check_temp_buffers(int *newval, void **extra, GucSource source) +{ + /* + * Once local buffers have been initialized, it's too late to change this. + * However, if this is only a test call, allow it. + */ + if (source != PGC_S_TEST && NLocBuffer && NLocBuffer != *newval) + { + GUC_check_errdetail("\"temp_buffers\" cannot be changed after any temporary tables have been accessed in the session."); + return false; + } + return true; +} + +/* * GetLocalBufferStorage - allocate memory for a local buffer * * The idea of this function is to aggregate our requests for storage diff --git a/src/backend/storage/ipc/ipci.c b/src/backend/storage/ipc/ipci.c index 1a6f5270518..b204ecdbc32 100644 --- a/src/backend/storage/ipc/ipci.c +++ b/src/backend/storage/ipc/ipci.c @@ -47,6 +47,7 @@ #include "storage/procsignal.h" #include "storage/sinvaladt.h" #include "storage/spin.h" +#include "utils/guc.h" #include "utils/snapmgr.h" /* GUCs */ diff --git a/src/backend/storage/lmgr/predicate.c b/src/backend/storage/lmgr/predicate.c index 5136da6ea36..562ac5b4321 100644 --- a/src/backend/storage/lmgr/predicate.c +++ b/src/backend/storage/lmgr/predicate.c @@ -1685,8 +1685,8 @@ GetSerializableTransactionSnapshot(Snapshot snapshot) /* * Can't use serializable mode while recovery is still active, as it is, * for example, on a hot standby. We could get here despite the check in - * check_XactIsoLevel() if default_transaction_isolation is set to - * serializable, so phrase the hint accordingly. + * check_transaction_isolation() if default_transaction_isolation is set + * to serializable, so phrase the hint accordingly. */ if (RecoveryInProgress()) ereport(ERROR, diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c index c6ca3b5b3d4..35eff28bd36 100644 --- a/src/backend/tcop/postgres.c +++ b/src/backend/tcop/postgres.c @@ -67,6 +67,7 @@ #include "tcop/pquery.h" #include "tcop/tcopprot.h" #include "tcop/utility.h" +#include "utils/guc_hooks.h" #include "utils/lsyscache.h" #include "utils/memutils.h" #include "utils/ps_status.h" @@ -3505,6 +3506,58 @@ assign_max_stack_depth(int newval, void *extra) max_stack_depth_bytes = newval_bytes; } +/* + * GUC check_hook for client_connection_check_interval + */ +bool +check_client_connection_check_interval(int *newval, void **extra, GucSource source) +{ + if (!WaitEventSetCanReportClosed() && *newval != 0) + { + GUC_check_errdetail("client_connection_check_interval must be set to 0 on this platform."); + return false; + } + return true; +} + +/* + * GUC check_hook for log_parser_stats, log_planner_stats, log_executor_stats + * + * This function and check_log_stats interact to prevent their variables from + * being set in a disallowed combination. This is a hack that doesn't really + * work right; for example it might fail while applying pg_db_role_setting + * values even though the final state would have been acceptable. However, + * since these variables are legacy settings with little production usage, + * we tolerate that. + */ +bool +check_stage_log_stats(bool *newval, void **extra, GucSource source) +{ + if (*newval && log_statement_stats) + { + GUC_check_errdetail("Cannot enable parameter when \"log_statement_stats\" is true."); + return false; + } + return true; +} + +/* + * GUC check_hook for log_statement_stats + */ +bool +check_log_stats(bool *newval, void **extra, GucSource source) +{ + if (*newval && + (log_parser_stats || log_planner_stats || log_executor_stats)) + { + GUC_check_errdetail("Cannot enable \"log_statement_stats\" when " + "\"log_parser_stats\", \"log_planner_stats\", " + "or \"log_executor_stats\" is true."); + return false; + } + return true; +} + /* * set_debug_options --- apply "-d N" command line option diff --git a/src/backend/tsearch/dict.c b/src/backend/tsearch/dict.c index c6ea9f92694..f2c468f8466 100644 --- a/src/backend/tsearch/dict.c +++ b/src/backend/tsearch/dict.c @@ -16,6 +16,7 @@ #include "catalog/pg_type.h" #include "tsearch/ts_cache.h" #include "tsearch/ts_utils.h" +#include "utils/array.h" #include "utils/builtins.h" diff --git a/src/backend/utils/adt/pg_locale.c b/src/backend/utils/adt/pg_locale.c index 1a047a97d74..2b42d9ccd8b 100644 --- a/src/backend/utils/adt/pg_locale.c +++ b/src/backend/utils/adt/pg_locale.c @@ -60,6 +60,7 @@ #include "mb/pg_wchar.h" #include "utils/builtins.h" #include "utils/formatting.h" +#include "utils/guc_hooks.h" #include "utils/hsearch.h" #include "utils/lsyscache.h" #include "utils/memutils.h" diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c index 50b588e3d0f..c746759eef4 100644 --- a/src/backend/utils/adt/selfuncs.c +++ b/src/backend/utils/adt/selfuncs.c @@ -123,6 +123,7 @@ #include "statistics/statistics.h" #include "storage/bufmgr.h" #include "utils/acl.h" +#include "utils/array.h" #include "utils/builtins.h" #include "utils/date.h" #include "utils/datum.h" diff --git a/src/backend/utils/adt/varchar.c b/src/backend/utils/adt/varchar.c index bbeb0a2653a..68e2e6f7a71 100644 --- a/src/backend/utils/adt/varchar.c +++ b/src/backend/utils/adt/varchar.c @@ -15,6 +15,7 @@ #include "postgres.h" #include "access/detoast.h" +#include "access/htup_details.h" #include "catalog/pg_collation.h" #include "catalog/pg_type.h" #include "common/hashfn.h" diff --git a/src/backend/utils/adt/varlena.c b/src/backend/utils/adt/varlena.c index 6ef317e1f93..816c66b7e77 100644 --- a/src/backend/utils/adt/varlena.c +++ b/src/backend/utils/adt/varlena.c @@ -34,6 +34,7 @@ #include "regex/regex.h" #include "utils/builtins.h" #include "utils/bytea.h" +#include "utils/guc.h" #include "utils/lsyscache.h" #include "utils/memutils.h" #include "utils/pg_locale.h" diff --git a/src/backend/utils/cache/ts_cache.c b/src/backend/utils/cache/ts_cache.c index 24808dfbb14..890832f353c 100644 --- a/src/backend/utils/cache/ts_cache.c +++ b/src/backend/utils/cache/ts_cache.c @@ -42,6 +42,7 @@ #include "utils/builtins.h" #include "utils/catcache.h" #include "utils/fmgroids.h" +#include "utils/guc_hooks.h" #include "utils/inval.h" #include "utils/lsyscache.h" #include "utils/memutils.h" @@ -584,7 +585,7 @@ getTSCurrentConfig(bool emitError) /* GUC check_hook for default_text_search_config */ bool -check_TSCurrentConfig(char **newval, void **extra, GucSource source) +check_default_text_search_config(char **newval, void **extra, GucSource source) { /* * If we aren't inside a transaction, or connected to a database, we @@ -645,7 +646,7 @@ check_TSCurrentConfig(char **newval, void **extra, GucSource source) /* GUC assign_hook for default_text_search_config */ void -assign_TSCurrentConfig(const char *newval, void *extra) +assign_default_text_search_config(const char *newval, void *extra) { /* Just reset the cache to force a lookup on first use */ TSCurrentConfigCache = InvalidOid; diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c index cb3c2898898..96c694da8fd 100644 --- a/src/backend/utils/error/elog.c +++ b/src/backend/utils/error/elog.c @@ -79,9 +79,10 @@ #include "storage/ipc.h" #include "storage/proc.h" #include "tcop/tcopprot.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/memutils.h" #include "utils/ps_status.h" +#include "utils/varlena.h" /* In this module, access gettext() via err_gettext() */ @@ -113,6 +114,9 @@ char *Log_destination_string = NULL; bool syslog_sequence_numbers = true; bool syslog_split_messages = true; +/* Processed form of backtrace_symbols GUC */ +static char *backtrace_symbol_list; + #ifdef HAVE_SYSLOG /* @@ -1957,14 +1961,159 @@ DebugFileOpen(void) } +/* + * GUC check_hook for backtrace_functions + * + * We split the input string, where commas separate function names + * and certain whitespace chars are ignored, into a \0-separated (and + * \0\0-terminated) list of function names. This formulation allows + * easy scanning when an error is thrown while avoiding the use of + * non-reentrant strtok(), as well as keeping the output data in a + * single palloc() chunk. + */ +bool +check_backtrace_functions(char **newval, void **extra, GucSource source) +{ + int newvallen = strlen(*newval); + char *someval; + int validlen; + int i; + int j; + + /* + * Allow characters that can be C identifiers and commas as separators, as + * well as some whitespace for readability. + */ + validlen = strspn(*newval, + "0123456789_" + "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + ", \n\t"); + if (validlen != newvallen) + { + GUC_check_errdetail("invalid character"); + return false; + } + + if (*newval[0] == '\0') + { + *extra = NULL; + return true; + } + + /* + * Allocate space for the output and create the copy. We could discount + * whitespace chars to save some memory, but it doesn't seem worth the + * trouble. + */ + someval = guc_malloc(ERROR, newvallen + 1 + 1); + for (i = 0, j = 0; i < newvallen; i++) + { + if ((*newval)[i] == ',') + someval[j++] = '\0'; /* next item */ + else if ((*newval)[i] == ' ' || + (*newval)[i] == '\n' || + (*newval)[i] == '\t') + ; /* ignore these */ + else + someval[j++] = (*newval)[i]; /* copy anything else */ + } + + /* two \0s end the setting */ + someval[j] = '\0'; + someval[j + 1] = '\0'; + + *extra = someval; + return true; +} + +/* + * GUC assign_hook for backtrace_functions + */ +void +assign_backtrace_functions(const char *newval, void *extra) +{ + backtrace_symbol_list = (char *) extra; +} + +/* + * GUC check_hook for log_destination + */ +bool +check_log_destination(char **newval, void **extra, GucSource source) +{ + char *rawstring; + List *elemlist; + ListCell *l; + int newlogdest = 0; + int *myextra; + + /* Need a modifiable copy of string */ + rawstring = pstrdup(*newval); + + /* Parse string into list of identifiers */ + if (!SplitIdentifierString(rawstring, ',', &elemlist)) + { + /* syntax error in list */ + GUC_check_errdetail("List syntax is invalid."); + pfree(rawstring); + list_free(elemlist); + return false; + } + + foreach(l, elemlist) + { + char *tok = (char *) lfirst(l); + + if (pg_strcasecmp(tok, "stderr") == 0) + newlogdest |= LOG_DESTINATION_STDERR; + else if (pg_strcasecmp(tok, "csvlog") == 0) + newlogdest |= LOG_DESTINATION_CSVLOG; + else if (pg_strcasecmp(tok, "jsonlog") == 0) + newlogdest |= LOG_DESTINATION_JSONLOG; #ifdef HAVE_SYSLOG + else if (pg_strcasecmp(tok, "syslog") == 0) + newlogdest |= LOG_DESTINATION_SYSLOG; +#endif +#ifdef WIN32 + else if (pg_strcasecmp(tok, "eventlog") == 0) + newlogdest |= LOG_DESTINATION_EVENTLOG; +#endif + else + { + GUC_check_errdetail("Unrecognized key word: \"%s\".", tok); + pfree(rawstring); + list_free(elemlist); + return false; + } + } + + pfree(rawstring); + list_free(elemlist); + + myextra = (int *) guc_malloc(ERROR, sizeof(int)); + *myextra = newlogdest; + *extra = (void *) myextra; + + return true; +} + +/* + * GUC assign_hook for log_destination + */ +void +assign_log_destination(const char *newval, void *extra) +{ + Log_destination = *((int *) extra); +} /* - * Set or update the parameters for syslog logging + * GUC assign_hook for syslog_ident */ void -set_syslog_parameters(const char *ident, int facility) +assign_syslog_ident(const char *newval, void *extra) { +#ifdef HAVE_SYSLOG /* * guc.c is likely to call us repeatedly with same parameters, so don't * thrash the syslog connection unnecessarily. Also, we do not re-open @@ -1975,8 +2124,7 @@ set_syslog_parameters(const char *ident, int facility) * on guc.c's. This may be overly paranoid, but it ensures that we cannot * accidentally free a string that syslog is still using. */ - if (syslog_ident == NULL || strcmp(syslog_ident, ident) != 0 || - syslog_facility != facility) + if (syslog_ident == NULL || strcmp(syslog_ident, newval) != 0) { if (openlog_done) { @@ -1984,12 +2132,37 @@ set_syslog_parameters(const char *ident, int facility) openlog_done = false; } free(syslog_ident); - syslog_ident = strdup(ident); + syslog_ident = strdup(newval); /* if the strdup fails, we will cope in write_syslog() */ - syslog_facility = facility; } +#endif + /* Without syslog support, just ignore it */ +} + +/* + * GUC assign_hook for syslog_facility + */ +void +assign_syslog_facility(int newval, void *extra) +{ +#ifdef HAVE_SYSLOG + /* + * As above, don't thrash the syslog connection unnecessarily. + */ + if (syslog_facility != newval) + { + if (openlog_done) + { + closelog(); + openlog_done = false; + } + syslog_facility = newval; + } +#endif + /* Without syslog support, just ignore it */ } +#ifdef HAVE_SYSLOG /* * Write a message line to syslog diff --git a/src/backend/utils/init/postinit.c b/src/backend/utils/init/postinit.c index 2b65ef3deb0..4a207a73917 100644 --- a/src/backend/utils/init/postinit.c +++ b/src/backend/utils/init/postinit.c @@ -58,7 +58,7 @@ #include "utils/acl.h" #include "utils/builtins.h" #include "utils/fmgroids.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/memutils.h" #include "utils/pg_locale.h" #include "utils/portal.h" @@ -564,6 +564,54 @@ InitializeMaxBackends(void) } /* + * GUC check_hook for max_connections + */ +bool +check_max_connections(int *newval, void **extra, GucSource source) +{ + if (*newval + autovacuum_max_workers + 1 + + max_worker_processes + max_wal_senders > MAX_BACKENDS) + return false; + return true; +} + +/* + * GUC check_hook for autovacuum_max_workers + */ +bool +check_autovacuum_max_workers(int *newval, void **extra, GucSource source) +{ + if (MaxConnections + *newval + 1 + + max_worker_processes + max_wal_senders > MAX_BACKENDS) + return false; + return true; +} + +/* + * GUC check_hook for max_worker_processes + */ +bool +check_max_worker_processes(int *newval, void **extra, GucSource source) +{ + if (MaxConnections + autovacuum_max_workers + 1 + + *newval + max_wal_senders > MAX_BACKENDS) + return false; + return true; +} + +/* + * GUC check_hook for max_wal_senders + */ +bool +check_max_wal_senders(int *newval, void **extra, GucSource source) +{ + if (MaxConnections + autovacuum_max_workers + 1 + + max_worker_processes + *newval > MAX_BACKENDS) + return false; + return true; +} + +/* * Early initialization of a backend (either standalone or under postmaster). * This happens even before InitPostgres. * diff --git a/src/backend/utils/misc/Makefile b/src/backend/utils/misc/Makefile index cf7ce9bc837..60973090331 100644 --- a/src/backend/utils/misc/Makefile +++ b/src/backend/utils/misc/Makefile @@ -17,6 +17,8 @@ override CPPFLAGS := -I. -I$(srcdir) $(CPPFLAGS) OBJS = \ guc.o \ guc-file.o \ + guc_funcs.o \ + guc_tables.o \ help_config.o \ pg_config.o \ pg_controldata.o \ diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index ec64b39272b..b11d609bbea 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -3,6 +3,14 @@ * * Support for grand unified configuration scheme, including SET * command, configuration file, and command line options. + * + * This file contains the generic option processing infrastructure. + * guc_funcs.c contains SQL-level functionality, including SET/SHOW + * commands and various system-administration SQL functions. + * guc_tables.c contains the arrays that define all the built-in + * GUC variables. Code that implements variable-specific behavior + * is scattered around the system in check, assign, and show hooks. + * * See src/backend/utils/misc/README for more information. * * @@ -16,109 +24,30 @@ */ #include "postgres.h" -#include <ctype.h> -#include <float.h> -#include <math.h> #include <limits.h> -#ifdef HAVE_POLL_H -#include <poll.h> -#endif -#ifndef WIN32 -#include <sys/mman.h> -#endif #include <sys/stat.h> -#ifdef HAVE_SYSLOG -#include <syslog.h> -#endif #include <unistd.h> -#include "access/commit_ts.h" -#include "access/gin.h" -#include "access/rmgr.h" -#include "access/tableam.h" -#include "access/toast_compression.h" -#include "access/transam.h" -#include "access/twophase.h" #include "access/xact.h" -#include "access/xlog_internal.h" -#include "access/xlogprefetcher.h" -#include "access/xlogrecovery.h" -#include "catalog/namespace.h" +#include "access/xlog.h" #include "catalog/objectaccess.h" #include "catalog/pg_authid.h" #include "catalog/pg_parameter_acl.h" -#include "catalog/storage.h" -#include "commands/async.h" -#include "commands/prepare.h" -#include "commands/tablespace.h" -#include "commands/trigger.h" -#include "commands/user.h" -#include "commands/vacuum.h" -#include "commands/variable.h" -#include "common/string.h" -#include "funcapi.h" #include "guc_internal.h" -#include "jit/jit.h" -#include "libpq/auth.h" -#include "libpq/libpq.h" #include "libpq/pqformat.h" -#include "miscadmin.h" -#include "optimizer/cost.h" -#include "optimizer/geqo.h" -#include "optimizer/optimizer.h" -#include "optimizer/paths.h" -#include "optimizer/planmain.h" -#include "parser/parse_expr.h" -#include "parser/parse_type.h" -#include "parser/parser.h" #include "parser/scansup.h" -#include "pgstat.h" -#include "postmaster/autovacuum.h" -#include "postmaster/bgworker_internals.h" -#include "postmaster/bgwriter.h" -#include "postmaster/postmaster.h" -#include "postmaster/startup.h" -#include "postmaster/syslogger.h" -#include "postmaster/walwriter.h" -#include "replication/logicallauncher.h" -#include "replication/reorderbuffer.h" -#include "replication/slot.h" -#include "replication/syncrep.h" -#include "replication/walreceiver.h" -#include "replication/walsender.h" -#include "storage/bufmgr.h" -#include "storage/dsm_impl.h" #include "storage/fd.h" -#include "storage/large_object.h" -#include "storage/pg_shmem.h" -#include "storage/predicate.h" -#include "storage/proc.h" -#include "storage/standby.h" +#include "storage/lwlock.h" +#include "storage/shmem.h" #include "tcop/tcopprot.h" -#include "tsearch/ts_cache.h" #include "utils/acl.h" #include "utils/backend_status.h" #include "utils/builtins.h" -#include "utils/bytea.h" #include "utils/float.h" #include "utils/guc_tables.h" #include "utils/memutils.h" -#include "utils/pg_locale.h" -#include "utils/pg_lsn.h" -#include "utils/plancache.h" -#include "utils/portal.h" -#include "utils/ps_status.h" -#include "utils/queryjumble.h" -#include "utils/rls.h" -#include "utils/snapmgr.h" -#include "utils/tzparser.h" -#include "utils/inval.h" -#include "utils/varlena.h" -#include "utils/xml.h" - -#ifndef PG_KRB_SRVTAB -#define PG_KRB_SRVTAB "" -#endif +#include "utils/timestamp.h" + #define CONFIG_FILENAME "postgresql.conf" #define HBA_FILENAME "pg_hba.conf" @@ -135,23 +64,6 @@ */ #define REALTYPE_PRECISION 17 -/* XXX these should appear in other modules' header files */ -extern bool Log_disconnections; -extern int CommitDelay; -extern int CommitSiblings; -extern char *default_tablespace; -extern char *temp_tablespaces; -extern bool ignore_checksum_failure; -extern bool ignore_invalid_pages; -extern bool synchronize_seqscans; - -#ifdef TRACE_SYNCSCAN -extern bool trace_syncscan; -#endif -#ifdef DEBUG_BOUNDED_SORT -extern bool optimize_bounded_sort; -#endif - static int GUC_check_errcode_value; static List *reserved_class_prefix = NIL; @@ -161,725 +73,9 @@ char *GUC_check_errmsg_string; char *GUC_check_errdetail_string; char *GUC_check_errhint_string; -static void do_serialize(char **destptr, Size *maxbytes, const char *fmt,...) pg_attribute_printf(3, 4); - -static void set_config_sourcefile(const char *name, char *sourcefile, - int sourceline); -static bool call_bool_check_hook(struct config_bool *conf, bool *newval, - void **extra, GucSource source, int elevel); -static bool call_int_check_hook(struct config_int *conf, int *newval, - void **extra, GucSource source, int elevel); -static bool call_real_check_hook(struct config_real *conf, double *newval, - void **extra, GucSource source, int elevel); -static bool call_string_check_hook(struct config_string *conf, char **newval, - void **extra, GucSource source, int elevel); -static bool call_enum_check_hook(struct config_enum *conf, int *newval, - void **extra, GucSource source, int elevel); - -static bool check_log_destination(char **newval, void **extra, GucSource source); -static void assign_log_destination(const char *newval, void *extra); - -static bool check_wal_consistency_checking(char **newval, void **extra, - GucSource source); -static void assign_wal_consistency_checking(const char *newval, void *extra); - -#ifdef HAVE_SYSLOG -static int syslog_facility = LOG_LOCAL0; -#else -static int syslog_facility = 0; -#endif - -static void assign_syslog_facility(int newval, void *extra); -static void assign_syslog_ident(const char *newval, void *extra); -static void assign_session_replication_role(int newval, void *extra); -static bool check_temp_buffers(int *newval, void **extra, GucSource source); -static bool check_bonjour(bool *newval, void **extra, GucSource source); -static bool check_ssl(bool *newval, void **extra, GucSource source); -static bool check_stage_log_stats(bool *newval, void **extra, GucSource source); -static bool check_log_stats(bool *newval, void **extra, GucSource source); -static bool check_canonical_path(char **newval, void **extra, GucSource source); -static bool check_timezone_abbreviations(char **newval, void **extra, GucSource source); -static void assign_timezone_abbreviations(const char *newval, void *extra); -static void pg_timezone_abbrev_initialize(void); -static const char *show_archive_command(void); -static void assign_tcp_keepalives_idle(int newval, void *extra); -static void assign_tcp_keepalives_interval(int newval, void *extra); -static void assign_tcp_keepalives_count(int newval, void *extra); -static void assign_tcp_user_timeout(int newval, void *extra); -static const char *show_tcp_keepalives_idle(void); -static const char *show_tcp_keepalives_interval(void); -static const char *show_tcp_keepalives_count(void); -static const char *show_tcp_user_timeout(void); -static bool check_maxconnections(int *newval, void **extra, GucSource source); -static bool check_max_worker_processes(int *newval, void **extra, GucSource source); -static bool check_autovacuum_max_workers(int *newval, void **extra, GucSource source); -static bool check_max_wal_senders(int *newval, void **extra, GucSource source); -static bool check_autovacuum_work_mem(int *newval, void **extra, GucSource source); -static bool check_effective_io_concurrency(int *newval, void **extra, GucSource source); -static bool check_maintenance_io_concurrency(int *newval, void **extra, GucSource source); -static bool check_huge_page_size(int *newval, void **extra, GucSource source); -static bool check_client_connection_check_interval(int *newval, void **extra, GucSource source); -static void assign_maintenance_io_concurrency(int newval, void *extra); -static bool check_application_name(char **newval, void **extra, GucSource source); -static void assign_application_name(const char *newval, void *extra); -static bool check_cluster_name(char **newval, void **extra, GucSource source); -static const char *show_unix_socket_permissions(void); -static const char *show_log_file_mode(void); -static const char *show_data_directory_mode(void); -static const char *show_in_hot_standby(void); -static bool check_backtrace_functions(char **newval, void **extra, GucSource source); -static void assign_backtrace_functions(const char *newval, void *extra); -static bool check_recovery_target_timeline(char **newval, void **extra, GucSource source); -static void assign_recovery_target_timeline(const char *newval, void *extra); -static bool check_recovery_target(char **newval, void **extra, GucSource source); -static void assign_recovery_target(const char *newval, void *extra); -static bool check_recovery_target_xid(char **newval, void **extra, GucSource source); -static void assign_recovery_target_xid(const char *newval, void *extra); -static bool check_recovery_target_time(char **newval, void **extra, GucSource source); -static void assign_recovery_target_time(const char *newval, void *extra); -static bool check_recovery_target_name(char **newval, void **extra, GucSource source); -static void assign_recovery_target_name(const char *newval, void *extra); -static bool check_recovery_target_lsn(char **newval, void **extra, GucSource source); -static void assign_recovery_target_lsn(const char *newval, void *extra); -static bool check_primary_slot_name(char **newval, void **extra, GucSource source); -static bool check_default_with_oids(bool *newval, void **extra, GucSource source); - -/* - * Track whether there were any deferred checks for custom resource managers - * specified in wal_consistency_checking. - */ -static bool check_wal_consistency_checking_deferred = false; - -/* - * Options for enum values defined in this module. - * - * NOTE! Option values may not contain double quotes! - */ - -static const struct config_enum_entry bytea_output_options[] = { - {"escape", BYTEA_OUTPUT_ESCAPE, false}, - {"hex", BYTEA_OUTPUT_HEX, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(bytea_output_options) == (BYTEA_OUTPUT_HEX + 2), - "array length mismatch"); - -/* - * We have different sets for client and server message level options because - * they sort slightly different (see "log" level), and because "fatal"/"panic" - * aren't sensible for client_min_messages. - */ -static const struct config_enum_entry client_message_level_options[] = { - {"debug5", DEBUG5, false}, - {"debug4", DEBUG4, false}, - {"debug3", DEBUG3, false}, - {"debug2", DEBUG2, false}, - {"debug1", DEBUG1, false}, - {"debug", DEBUG2, true}, - {"log", LOG, false}, - {"info", INFO, true}, - {"notice", NOTICE, false}, - {"warning", WARNING, false}, - {"error", ERROR, false}, - {NULL, 0, false} -}; - -static const struct config_enum_entry server_message_level_options[] = { - {"debug5", DEBUG5, false}, - {"debug4", DEBUG4, false}, - {"debug3", DEBUG3, false}, - {"debug2", DEBUG2, false}, - {"debug1", DEBUG1, false}, - {"debug", DEBUG2, true}, - {"info", INFO, false}, - {"notice", NOTICE, false}, - {"warning", WARNING, false}, - {"error", ERROR, false}, - {"log", LOG, false}, - {"fatal", FATAL, false}, - {"panic", PANIC, false}, - {NULL, 0, false} -}; - -static const struct config_enum_entry intervalstyle_options[] = { - {"postgres", INTSTYLE_POSTGRES, false}, - {"postgres_verbose", INTSTYLE_POSTGRES_VERBOSE, false}, - {"sql_standard", INTSTYLE_SQL_STANDARD, false}, - {"iso_8601", INTSTYLE_ISO_8601, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(intervalstyle_options) == (INTSTYLE_ISO_8601 + 2), - "array length mismatch"); - -static const struct config_enum_entry log_error_verbosity_options[] = { - {"terse", PGERROR_TERSE, false}, - {"default", PGERROR_DEFAULT, false}, - {"verbose", PGERROR_VERBOSE, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(log_error_verbosity_options) == (PGERROR_VERBOSE + 2), - "array length mismatch"); - -static const struct config_enum_entry log_statement_options[] = { - {"none", LOGSTMT_NONE, false}, - {"ddl", LOGSTMT_DDL, false}, - {"mod", LOGSTMT_MOD, false}, - {"all", LOGSTMT_ALL, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(log_statement_options) == (LOGSTMT_ALL + 2), - "array length mismatch"); - -static const struct config_enum_entry isolation_level_options[] = { - {"serializable", XACT_SERIALIZABLE, false}, - {"repeatable read", XACT_REPEATABLE_READ, false}, - {"read committed", XACT_READ_COMMITTED, false}, - {"read uncommitted", XACT_READ_UNCOMMITTED, false}, - {NULL, 0} -}; - -static const struct config_enum_entry session_replication_role_options[] = { - {"origin", SESSION_REPLICATION_ROLE_ORIGIN, false}, - {"replica", SESSION_REPLICATION_ROLE_REPLICA, false}, - {"local", SESSION_REPLICATION_ROLE_LOCAL, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(session_replication_role_options) == (SESSION_REPLICATION_ROLE_LOCAL + 2), - "array length mismatch"); - -static const struct config_enum_entry syslog_facility_options[] = { -#ifdef HAVE_SYSLOG - {"local0", LOG_LOCAL0, false}, - {"local1", LOG_LOCAL1, false}, - {"local2", LOG_LOCAL2, false}, - {"local3", LOG_LOCAL3, false}, - {"local4", LOG_LOCAL4, false}, - {"local5", LOG_LOCAL5, false}, - {"local6", LOG_LOCAL6, false}, - {"local7", LOG_LOCAL7, false}, -#else - {"none", 0, false}, -#endif - {NULL, 0} -}; - -static const struct config_enum_entry track_function_options[] = { - {"none", TRACK_FUNC_OFF, false}, - {"pl", TRACK_FUNC_PL, false}, - {"all", TRACK_FUNC_ALL, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(track_function_options) == (TRACK_FUNC_ALL + 2), - "array length mismatch"); - -static const struct config_enum_entry stats_fetch_consistency[] = { - {"none", PGSTAT_FETCH_CONSISTENCY_NONE, false}, - {"cache", PGSTAT_FETCH_CONSISTENCY_CACHE, false}, - {"snapshot", PGSTAT_FETCH_CONSISTENCY_SNAPSHOT, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(stats_fetch_consistency) == (PGSTAT_FETCH_CONSISTENCY_SNAPSHOT + 2), - "array length mismatch"); - -static const struct config_enum_entry xmlbinary_options[] = { - {"base64", XMLBINARY_BASE64, false}, - {"hex", XMLBINARY_HEX, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(xmlbinary_options) == (XMLBINARY_HEX + 2), - "array length mismatch"); - -static const struct config_enum_entry xmloption_options[] = { - {"content", XMLOPTION_CONTENT, false}, - {"document", XMLOPTION_DOCUMENT, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(xmloption_options) == (XMLOPTION_CONTENT + 2), - "array length mismatch"); - -/* - * Although only "on", "off", and "safe_encoding" are documented, we - * accept all the likely variants of "on" and "off". - */ -static const struct config_enum_entry backslash_quote_options[] = { - {"safe_encoding", BACKSLASH_QUOTE_SAFE_ENCODING, false}, - {"on", BACKSLASH_QUOTE_ON, false}, - {"off", BACKSLASH_QUOTE_OFF, false}, - {"true", BACKSLASH_QUOTE_ON, true}, - {"false", BACKSLASH_QUOTE_OFF, true}, - {"yes", BACKSLASH_QUOTE_ON, true}, - {"no", BACKSLASH_QUOTE_OFF, true}, - {"1", BACKSLASH_QUOTE_ON, true}, - {"0", BACKSLASH_QUOTE_OFF, true}, - {NULL, 0, false} -}; - -/* - * Although only "on", "off", and "auto" are documented, we accept - * all the likely variants of "on" and "off". - */ -static const struct config_enum_entry compute_query_id_options[] = { - {"auto", COMPUTE_QUERY_ID_AUTO, false}, - {"regress", COMPUTE_QUERY_ID_REGRESS, false}, - {"on", COMPUTE_QUERY_ID_ON, false}, - {"off", COMPUTE_QUERY_ID_OFF, false}, - {"true", COMPUTE_QUERY_ID_ON, true}, - {"false", COMPUTE_QUERY_ID_OFF, true}, - {"yes", COMPUTE_QUERY_ID_ON, true}, - {"no", COMPUTE_QUERY_ID_OFF, true}, - {"1", COMPUTE_QUERY_ID_ON, true}, - {"0", COMPUTE_QUERY_ID_OFF, true}, - {NULL, 0, false} -}; - -/* - * Although only "on", "off", and "partition" are documented, we - * accept all the likely variants of "on" and "off". - */ -static const struct config_enum_entry constraint_exclusion_options[] = { - {"partition", CONSTRAINT_EXCLUSION_PARTITION, false}, - {"on", CONSTRAINT_EXCLUSION_ON, false}, - {"off", CONSTRAINT_EXCLUSION_OFF, false}, - {"true", CONSTRAINT_EXCLUSION_ON, true}, - {"false", CONSTRAINT_EXCLUSION_OFF, true}, - {"yes", CONSTRAINT_EXCLUSION_ON, true}, - {"no", CONSTRAINT_EXCLUSION_OFF, true}, - {"1", CONSTRAINT_EXCLUSION_ON, true}, - {"0", CONSTRAINT_EXCLUSION_OFF, true}, - {NULL, 0, false} -}; - -/* - * Although only "on", "off", "remote_apply", "remote_write", and "local" are - * documented, we accept all the likely variants of "on" and "off". - */ -static const struct config_enum_entry synchronous_commit_options[] = { - {"local", SYNCHRONOUS_COMMIT_LOCAL_FLUSH, false}, - {"remote_write", SYNCHRONOUS_COMMIT_REMOTE_WRITE, false}, - {"remote_apply", SYNCHRONOUS_COMMIT_REMOTE_APPLY, false}, - {"on", SYNCHRONOUS_COMMIT_ON, false}, - {"off", SYNCHRONOUS_COMMIT_OFF, false}, - {"true", SYNCHRONOUS_COMMIT_ON, true}, - {"false", SYNCHRONOUS_COMMIT_OFF, true}, - {"yes", SYNCHRONOUS_COMMIT_ON, true}, - {"no", SYNCHRONOUS_COMMIT_OFF, true}, - {"1", SYNCHRONOUS_COMMIT_ON, true}, - {"0", SYNCHRONOUS_COMMIT_OFF, true}, - {NULL, 0, false} -}; - -/* - * Although only "on", "off", "try" are documented, we accept all the likely - * variants of "on" and "off". - */ -static const struct config_enum_entry huge_pages_options[] = { - {"off", HUGE_PAGES_OFF, false}, - {"on", HUGE_PAGES_ON, false}, - {"try", HUGE_PAGES_TRY, false}, - {"true", HUGE_PAGES_ON, true}, - {"false", HUGE_PAGES_OFF, true}, - {"yes", HUGE_PAGES_ON, true}, - {"no", HUGE_PAGES_OFF, true}, - {"1", HUGE_PAGES_ON, true}, - {"0", HUGE_PAGES_OFF, true}, - {NULL, 0, false} -}; - -static const struct config_enum_entry recovery_prefetch_options[] = { - {"off", RECOVERY_PREFETCH_OFF, false}, - {"on", RECOVERY_PREFETCH_ON, false}, - {"try", RECOVERY_PREFETCH_TRY, false}, - {"true", RECOVERY_PREFETCH_ON, true}, - {"false", RECOVERY_PREFETCH_OFF, true}, - {"yes", RECOVERY_PREFETCH_ON, true}, - {"no", RECOVERY_PREFETCH_OFF, true}, - {"1", RECOVERY_PREFETCH_ON, true}, - {"0", RECOVERY_PREFETCH_OFF, true}, - {NULL, 0, false} -}; - -static const struct config_enum_entry force_parallel_mode_options[] = { - {"off", FORCE_PARALLEL_OFF, false}, - {"on", FORCE_PARALLEL_ON, false}, - {"regress", FORCE_PARALLEL_REGRESS, false}, - {"true", FORCE_PARALLEL_ON, true}, - {"false", FORCE_PARALLEL_OFF, true}, - {"yes", FORCE_PARALLEL_ON, true}, - {"no", FORCE_PARALLEL_OFF, true}, - {"1", FORCE_PARALLEL_ON, true}, - {"0", FORCE_PARALLEL_OFF, true}, - {NULL, 0, false} -}; - -static const struct config_enum_entry plan_cache_mode_options[] = { - {"auto", PLAN_CACHE_MODE_AUTO, false}, - {"force_generic_plan", PLAN_CACHE_MODE_FORCE_GENERIC_PLAN, false}, - {"force_custom_plan", PLAN_CACHE_MODE_FORCE_CUSTOM_PLAN, false}, - {NULL, 0, false} -}; - -static const struct config_enum_entry password_encryption_options[] = { - {"md5", PASSWORD_TYPE_MD5, false}, - {"scram-sha-256", PASSWORD_TYPE_SCRAM_SHA_256, false}, - {NULL, 0, false} -}; - -const struct config_enum_entry ssl_protocol_versions_info[] = { - {"", PG_TLS_ANY, false}, - {"TLSv1", PG_TLS1_VERSION, false}, - {"TLSv1.1", PG_TLS1_1_VERSION, false}, - {"TLSv1.2", PG_TLS1_2_VERSION, false}, - {"TLSv1.3", PG_TLS1_3_VERSION, false}, - {NULL, 0, false} -}; - -StaticAssertDecl(lengthof(ssl_protocol_versions_info) == (PG_TLS1_3_VERSION + 2), - "array length mismatch"); - -static struct config_enum_entry recovery_init_sync_method_options[] = { - {"fsync", RECOVERY_INIT_SYNC_METHOD_FSYNC, false}, -#ifdef HAVE_SYNCFS - {"syncfs", RECOVERY_INIT_SYNC_METHOD_SYNCFS, false}, -#endif - {NULL, 0, false} -}; - -static struct config_enum_entry shared_memory_options[] = { -#ifndef WIN32 - {"sysv", SHMEM_TYPE_SYSV, false}, -#endif -#ifndef EXEC_BACKEND - {"mmap", SHMEM_TYPE_MMAP, false}, -#endif -#ifdef WIN32 - {"windows", SHMEM_TYPE_WINDOWS, false}, -#endif - {NULL, 0, false} -}; - -static struct config_enum_entry default_toast_compression_options[] = { - {"pglz", TOAST_PGLZ_COMPRESSION, false}, -#ifdef USE_LZ4 - {"lz4", TOAST_LZ4_COMPRESSION, false}, -#endif - {NULL, 0, false} -}; - -static const struct config_enum_entry wal_compression_options[] = { - {"pglz", WAL_COMPRESSION_PGLZ, false}, -#ifdef USE_LZ4 - {"lz4", WAL_COMPRESSION_LZ4, false}, -#endif -#ifdef USE_ZSTD - {"zstd", WAL_COMPRESSION_ZSTD, false}, -#endif - {"on", WAL_COMPRESSION_PGLZ, false}, - {"off", WAL_COMPRESSION_NONE, false}, - {"true", WAL_COMPRESSION_PGLZ, true}, - {"false", WAL_COMPRESSION_NONE, true}, - {"yes", WAL_COMPRESSION_PGLZ, true}, - {"no", WAL_COMPRESSION_NONE, true}, - {"1", WAL_COMPRESSION_PGLZ, true}, - {"0", WAL_COMPRESSION_NONE, true}, - {NULL, 0, false} -}; - -/* - * Options for enum values stored in other modules - */ -extern const struct config_enum_entry wal_level_options[]; -extern const struct config_enum_entry archive_mode_options[]; -extern const struct config_enum_entry recovery_target_action_options[]; -extern const struct config_enum_entry sync_method_options[]; -extern const struct config_enum_entry dynamic_shared_memory_options[]; - -/* - * GUC option variables that are exported from this module - */ -bool log_duration = false; -bool Debug_print_plan = false; -bool Debug_print_parse = false; -bool Debug_print_rewritten = false; -bool Debug_pretty_print = true; - -bool log_parser_stats = false; -bool log_planner_stats = false; -bool log_executor_stats = false; -bool log_statement_stats = false; /* this is sort of all three above - * together */ -bool log_btree_build_stats = false; -char *event_source; - -bool row_security; -bool check_function_bodies = true; - -/* - * This GUC exists solely for backward compatibility, check its definition for - * details. - */ -bool default_with_oids = false; -bool session_auth_is_superuser; - -int log_min_error_statement = ERROR; -int log_min_messages = WARNING; -int client_min_messages = NOTICE; -int log_min_duration_sample = -1; -int log_min_duration_statement = -1; -int log_parameter_max_length = -1; -int log_parameter_max_length_on_error = 0; -int log_temp_files = -1; -double log_statement_sample_rate = 1.0; -double log_xact_sample_rate = 0; -int trace_recovery_messages = LOG; -char *backtrace_functions; -char *backtrace_symbol_list; - -int temp_file_limit = -1; - -int num_temp_buffers = 1024; - -char *cluster_name = ""; -char *ConfigFileName; -char *HbaFileName; -char *IdentFileName; -char *external_pid_file; - -char *pgstat_temp_directory; - -char *application_name; - -int tcp_keepalives_idle; -int tcp_keepalives_interval; -int tcp_keepalives_count; -int tcp_user_timeout; - -/* - * SSL renegotiation was been removed in PostgreSQL 9.5, but we tolerate it - * being set to zero (meaning never renegotiate) for backward compatibility. - * This avoids breaking compatibility with clients that have never supported - * renegotiation and therefore always try to zero it. - */ -int ssl_renegotiation_limit; - -/* - * This really belongs in pg_shmem.c, but is defined here so that it doesn't - * need to be duplicated in all the different implementations of pg_shmem.c. - */ -int huge_pages; -int huge_page_size; - -/* - * These variables are all dummies that don't do anything, except in some - * cases provide the value for SHOW to display. The real state is elsewhere - * and is kept in sync by assign_hooks. - */ -static char *syslog_ident_str; -static double phony_random_seed; -static char *client_encoding_string; -static char *datestyle_string; -static char *locale_collate; -static char *locale_ctype; -static char *server_encoding_string; -static char *server_version_string; -static int server_version_num; -static char *timezone_string; -static char *log_timezone_string; -static char *timezone_abbreviations_string; -static char *data_directory; -static char *session_authorization_string; -static int max_function_args; -static int max_index_keys; -static int max_identifier_length; -static int block_size; -static int segment_size; -static int shared_memory_size_mb; -static int shared_memory_size_in_huge_pages; -static int wal_block_size; -static bool data_checksums; -static bool integer_datetimes; -static bool assert_enabled; -static bool in_hot_standby; -static char *recovery_target_timeline_string; -static char *recovery_target_string; -static char *recovery_target_xid_string; -static char *recovery_target_name_string; -static char *recovery_target_lsn_string; - - -/* should be static, but commands/variable.c needs to get at this */ -char *role_string; - - -/* - * Displayable names for context types (enum GucContext) - * - * Note: these strings are deliberately not localized. - */ -const char *const GucContext_Names[] = -{ - /* PGC_INTERNAL */ "internal", - /* PGC_POSTMASTER */ "postmaster", - /* PGC_SIGHUP */ "sighup", - /* PGC_SU_BACKEND */ "superuser-backend", - /* PGC_BACKEND */ "backend", - /* PGC_SUSET */ "superuser", - /* PGC_USERSET */ "user" -}; - -StaticAssertDecl(lengthof(GucContext_Names) == (PGC_USERSET + 1), - "array length mismatch"); - -/* - * Displayable names for source types (enum GucSource) - * - * Note: these strings are deliberately not localized. - */ -const char *const GucSource_Names[] = -{ - /* PGC_S_DEFAULT */ "default", - /* PGC_S_DYNAMIC_DEFAULT */ "default", - /* PGC_S_ENV_VAR */ "environment variable", - /* PGC_S_FILE */ "configuration file", - /* PGC_S_ARGV */ "command line", - /* PGC_S_GLOBAL */ "global", - /* PGC_S_DATABASE */ "database", - /* PGC_S_USER */ "user", - /* PGC_S_DATABASE_USER */ "database user", - /* PGC_S_CLIENT */ "client", - /* PGC_S_OVERRIDE */ "override", - /* PGC_S_INTERACTIVE */ "interactive", - /* PGC_S_TEST */ "test", - /* PGC_S_SESSION */ "session" -}; +/* Kluge: for speed, we examine this GUC variable's value directly */ +extern bool in_hot_standby_guc; -StaticAssertDecl(lengthof(GucSource_Names) == (PGC_S_SESSION + 1), - "array length mismatch"); - -/* - * Displayable names for the groupings defined in enum config_group - */ -const char *const config_group_names[] = -{ - /* UNGROUPED */ - gettext_noop("Ungrouped"), - /* FILE_LOCATIONS */ - gettext_noop("File Locations"), - /* CONN_AUTH_SETTINGS */ - gettext_noop("Connections and Authentication / Connection Settings"), - /* CONN_AUTH_TCP */ - gettext_noop("Connections and Authentication / TCP Settings"), - /* CONN_AUTH_AUTH */ - gettext_noop("Connections and Authentication / Authentication"), - /* CONN_AUTH_SSL */ - gettext_noop("Connections and Authentication / SSL"), - /* RESOURCES_MEM */ - gettext_noop("Resource Usage / Memory"), - /* RESOURCES_DISK */ - gettext_noop("Resource Usage / Disk"), - /* RESOURCES_KERNEL */ - gettext_noop("Resource Usage / Kernel Resources"), - /* RESOURCES_VACUUM_DELAY */ - gettext_noop("Resource Usage / Cost-Based Vacuum Delay"), - /* RESOURCES_BGWRITER */ - gettext_noop("Resource Usage / Background Writer"), - /* RESOURCES_ASYNCHRONOUS */ - gettext_noop("Resource Usage / Asynchronous Behavior"), - /* WAL_SETTINGS */ - gettext_noop("Write-Ahead Log / Settings"), - /* WAL_CHECKPOINTS */ - gettext_noop("Write-Ahead Log / Checkpoints"), - /* WAL_ARCHIVING */ - gettext_noop("Write-Ahead Log / Archiving"), - /* WAL_RECOVERY */ - gettext_noop("Write-Ahead Log / Recovery"), - /* WAL_ARCHIVE_RECOVERY */ - gettext_noop("Write-Ahead Log / Archive Recovery"), - /* WAL_RECOVERY_TARGET */ - gettext_noop("Write-Ahead Log / Recovery Target"), - /* REPLICATION_SENDING */ - gettext_noop("Replication / Sending Servers"), - /* REPLICATION_PRIMARY */ - gettext_noop("Replication / Primary Server"), - /* REPLICATION_STANDBY */ - gettext_noop("Replication / Standby Servers"), - /* REPLICATION_SUBSCRIBERS */ - gettext_noop("Replication / Subscribers"), - /* QUERY_TUNING_METHOD */ - gettext_noop("Query Tuning / Planner Method Configuration"), - /* QUERY_TUNING_COST */ - gettext_noop("Query Tuning / Planner Cost Constants"), - /* QUERY_TUNING_GEQO */ - gettext_noop("Query Tuning / Genetic Query Optimizer"), - /* QUERY_TUNING_OTHER */ - gettext_noop("Query Tuning / Other Planner Options"), - /* LOGGING_WHERE */ - gettext_noop("Reporting and Logging / Where to Log"), - /* LOGGING_WHEN */ - gettext_noop("Reporting and Logging / When to Log"), - /* LOGGING_WHAT */ - gettext_noop("Reporting and Logging / What to Log"), - /* PROCESS_TITLE */ - gettext_noop("Reporting and Logging / Process Title"), - /* STATS_MONITORING */ - gettext_noop("Statistics / Monitoring"), - /* STATS_CUMULATIVE */ - gettext_noop("Statistics / Cumulative Query and Index Statistics"), - /* AUTOVACUUM */ - gettext_noop("Autovacuum"), - /* CLIENT_CONN_STATEMENT */ - gettext_noop("Client Connection Defaults / Statement Behavior"), - /* CLIENT_CONN_LOCALE */ - gettext_noop("Client Connection Defaults / Locale and Formatting"), - /* CLIENT_CONN_PRELOAD */ - gettext_noop("Client Connection Defaults / Shared Library Preloading"), - /* CLIENT_CONN_OTHER */ - gettext_noop("Client Connection Defaults / Other Defaults"), - /* LOCK_MANAGEMENT */ - gettext_noop("Lock Management"), - /* COMPAT_OPTIONS_PREVIOUS */ - gettext_noop("Version and Platform Compatibility / Previous PostgreSQL Versions"), - /* COMPAT_OPTIONS_CLIENT */ - gettext_noop("Version and Platform Compatibility / Other Platforms and Clients"), - /* ERROR_HANDLING */ - gettext_noop("Error Handling"), - /* PRESET_OPTIONS */ - gettext_noop("Preset Options"), - /* CUSTOM_OPTIONS */ - gettext_noop("Customized Options"), - /* DEVELOPER_OPTIONS */ - gettext_noop("Developer Options"), - /* help_config wants this array to be null-terminated */ - NULL -}; - -StaticAssertDecl(lengthof(config_group_names) == (DEVELOPER_OPTIONS + 2), - "array length mismatch"); - -/* - * Displayable names for GUC variable types (enum config_type) - * - * Note: these strings are deliberately not localized. - */ -const char *const config_type_names[] = -{ - /* PGC_BOOL */ "bool", - /* PGC_INT */ "integer", - /* PGC_REAL */ "real", - /* PGC_STRING */ "string", - /* PGC_ENUM */ "enum" -}; - -StaticAssertDecl(lengthof(config_type_names) == (PGC_ENUM + 1), - "array length mismatch"); /* * Unit conversion tables. @@ -980,4150 +176,6 @@ static const unit_conversion time_unit_conversion_table[] = }; /* - * Contents of GUC tables - * - * See src/backend/utils/misc/README for design notes. - * - * TO ADD AN OPTION: - * - * 1. Declare a global variable of type bool, int, double, or char* - * and make use of it. - * - * 2. Decide at what times it's safe to set the option. See guc.h for - * details. - * - * 3. Decide on a name, a default value, upper and lower bounds (if - * applicable), etc. - * - * 4. Add a record below. - * - * 5. Add it to src/backend/utils/misc/postgresql.conf.sample, if - * appropriate. - * - * 6. Don't forget to document the option (at least in config.sgml). - * - * 7. If it's a new GUC_LIST_QUOTE option, you must add it to - * variable_is_guc_list_quote() in src/bin/pg_dump/dumputils.c. - */ - - -/******** option records follow ********/ - -static struct config_bool ConfigureNamesBool[] = -{ - { - {"enable_seqscan", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of sequential-scan plans."), - NULL, - GUC_EXPLAIN - }, - &enable_seqscan, - true, - NULL, NULL, NULL - }, - { - {"enable_indexscan", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of index-scan plans."), - NULL, - GUC_EXPLAIN - }, - &enable_indexscan, - true, - NULL, NULL, NULL - }, - { - {"enable_indexonlyscan", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of index-only-scan plans."), - NULL, - GUC_EXPLAIN - }, - &enable_indexonlyscan, - true, - NULL, NULL, NULL - }, - { - {"enable_bitmapscan", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of bitmap-scan plans."), - NULL, - GUC_EXPLAIN - }, - &enable_bitmapscan, - true, - NULL, NULL, NULL - }, - { - {"enable_tidscan", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of TID scan plans."), - NULL, - GUC_EXPLAIN - }, - &enable_tidscan, - true, - NULL, NULL, NULL - }, - { - {"enable_sort", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of explicit sort steps."), - NULL, - GUC_EXPLAIN - }, - &enable_sort, - true, - NULL, NULL, NULL - }, - { - {"enable_incremental_sort", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of incremental sort steps."), - NULL, - GUC_EXPLAIN - }, - &enable_incremental_sort, - true, - NULL, NULL, NULL - }, - { - {"enable_hashagg", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of hashed aggregation plans."), - NULL, - GUC_EXPLAIN - }, - &enable_hashagg, - true, - NULL, NULL, NULL - }, - { - {"enable_material", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of materialization."), - NULL, - GUC_EXPLAIN - }, - &enable_material, - true, - NULL, NULL, NULL - }, - { - {"enable_memoize", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of memoization."), - NULL, - GUC_EXPLAIN - }, - &enable_memoize, - true, - NULL, NULL, NULL - }, - { - {"enable_nestloop", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of nested-loop join plans."), - NULL, - GUC_EXPLAIN - }, - &enable_nestloop, - true, - NULL, NULL, NULL - }, - { - {"enable_mergejoin", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of merge join plans."), - NULL, - GUC_EXPLAIN - }, - &enable_mergejoin, - true, - NULL, NULL, NULL - }, - { - {"enable_hashjoin", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of hash join plans."), - NULL, - GUC_EXPLAIN - }, - &enable_hashjoin, - true, - NULL, NULL, NULL - }, - { - {"enable_gathermerge", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of gather merge plans."), - NULL, - GUC_EXPLAIN - }, - &enable_gathermerge, - true, - NULL, NULL, NULL - }, - { - {"enable_partitionwise_join", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables partitionwise join."), - NULL, - GUC_EXPLAIN - }, - &enable_partitionwise_join, - false, - NULL, NULL, NULL - }, - { - {"enable_partitionwise_aggregate", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables partitionwise aggregation and grouping."), - NULL, - GUC_EXPLAIN - }, - &enable_partitionwise_aggregate, - false, - NULL, NULL, NULL - }, - { - {"enable_parallel_append", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of parallel append plans."), - NULL, - GUC_EXPLAIN - }, - &enable_parallel_append, - true, - NULL, NULL, NULL - }, - { - {"enable_parallel_hash", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of parallel hash plans."), - NULL, - GUC_EXPLAIN - }, - &enable_parallel_hash, - true, - NULL, NULL, NULL - }, - { - {"enable_partition_pruning", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables plan-time and execution-time partition pruning."), - gettext_noop("Allows the query planner and executor to compare partition " - "bounds to conditions in the query to determine which " - "partitions must be scanned."), - GUC_EXPLAIN - }, - &enable_partition_pruning, - true, - NULL, NULL, NULL - }, - { - {"enable_async_append", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enables the planner's use of async append plans."), - NULL, - GUC_EXPLAIN - }, - &enable_async_append, - true, - NULL, NULL, NULL - }, - { - {"enable_group_by_reordering", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enable reordering of GROUP BY key."), - NULL, - GUC_EXPLAIN - }, - &enable_group_by_reordering, - true, - NULL, NULL, NULL - }, - { - {"geqo", PGC_USERSET, QUERY_TUNING_GEQO, - gettext_noop("Enables genetic query optimization."), - gettext_noop("This algorithm attempts to do planning without " - "exhaustive searching."), - GUC_EXPLAIN - }, - &enable_geqo, - true, - NULL, NULL, NULL - }, - { - /* Not for general use --- used by SET SESSION AUTHORIZATION */ - {"is_superuser", PGC_INTERNAL, UNGROUPED, - gettext_noop("Shows whether the current user is a superuser."), - NULL, - GUC_REPORT | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &session_auth_is_superuser, - false, - NULL, NULL, NULL - }, - { - {"bonjour", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Enables advertising the server via Bonjour."), - NULL - }, - &enable_bonjour, - false, - check_bonjour, NULL, NULL - }, - { - {"track_commit_timestamp", PGC_POSTMASTER, REPLICATION_SENDING, - gettext_noop("Collects transaction commit time."), - NULL - }, - &track_commit_timestamp, - false, - NULL, NULL, NULL - }, - { - {"ssl", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Enables SSL connections."), - NULL - }, - &EnableSSL, - false, - check_ssl, NULL, NULL - }, - { - {"ssl_passphrase_command_supports_reload", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Controls whether ssl_passphrase_command is called during server reload."), - NULL - }, - &ssl_passphrase_command_supports_reload, - false, - NULL, NULL, NULL - }, - { - {"ssl_prefer_server_ciphers", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Give priority to server ciphersuite order."), - NULL - }, - &SSLPreferServerCiphers, - true, - NULL, NULL, NULL - }, - { - {"fsync", PGC_SIGHUP, WAL_SETTINGS, - gettext_noop("Forces synchronization of updates to disk."), - gettext_noop("The server will use the fsync() system call in several places to make " - "sure that updates are physically written to disk. This insures " - "that a database cluster will recover to a consistent state after " - "an operating system or hardware crash.") - }, - &enableFsync, - true, - NULL, NULL, NULL - }, - { - {"ignore_checksum_failure", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Continues processing after a checksum failure."), - gettext_noop("Detection of a checksum failure normally causes PostgreSQL to " - "report an error, aborting the current transaction. Setting " - "ignore_checksum_failure to true causes the system to ignore the failure " - "(but still report a warning), and continue processing. This " - "behavior could cause crashes or other serious problems. Only " - "has an effect if checksums are enabled."), - GUC_NOT_IN_SAMPLE - }, - &ignore_checksum_failure, - false, - NULL, NULL, NULL - }, - { - {"zero_damaged_pages", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Continues processing past damaged page headers."), - gettext_noop("Detection of a damaged page header normally causes PostgreSQL to " - "report an error, aborting the current transaction. Setting " - "zero_damaged_pages to true causes the system to instead report a " - "warning, zero out the damaged page, and continue processing. This " - "behavior will destroy data, namely all the rows on the damaged page."), - GUC_NOT_IN_SAMPLE - }, - &zero_damaged_pages, - false, - NULL, NULL, NULL - }, - { - {"ignore_invalid_pages", PGC_POSTMASTER, DEVELOPER_OPTIONS, - gettext_noop("Continues recovery after an invalid pages failure."), - gettext_noop("Detection of WAL records having references to " - "invalid pages during recovery causes PostgreSQL to " - "raise a PANIC-level error, aborting the recovery. " - "Setting ignore_invalid_pages to true causes " - "the system to ignore invalid page references " - "in WAL records (but still report a warning), " - "and continue recovery. This behavior may cause " - "crashes, data loss, propagate or hide corruption, " - "or other serious problems. Only has an effect " - "during recovery or in standby mode."), - GUC_NOT_IN_SAMPLE - }, - &ignore_invalid_pages, - false, - NULL, NULL, NULL - }, - { - {"full_page_writes", PGC_SIGHUP, WAL_SETTINGS, - gettext_noop("Writes full pages to WAL when first modified after a checkpoint."), - gettext_noop("A page write in process during an operating system crash might be " - "only partially written to disk. During recovery, the row changes " - "stored in WAL are not enough to recover. This option writes " - "pages when first modified after a checkpoint to WAL so full recovery " - "is possible.") - }, - &fullPageWrites, - true, - NULL, NULL, NULL - }, - - { - {"wal_log_hints", PGC_POSTMASTER, WAL_SETTINGS, - gettext_noop("Writes full pages to WAL when first modified after a checkpoint, even for a non-critical modification."), - NULL - }, - &wal_log_hints, - false, - NULL, NULL, NULL - }, - - { - {"wal_init_zero", PGC_SUSET, WAL_SETTINGS, - gettext_noop("Writes zeroes to new WAL files before first use."), - NULL - }, - &wal_init_zero, - true, - NULL, NULL, NULL - }, - - { - {"wal_recycle", PGC_SUSET, WAL_SETTINGS, - gettext_noop("Recycles WAL files by renaming them."), - NULL - }, - &wal_recycle, - true, - NULL, NULL, NULL - }, - - { - {"log_checkpoints", PGC_SIGHUP, LOGGING_WHAT, - gettext_noop("Logs each checkpoint."), - NULL - }, - &log_checkpoints, - true, - NULL, NULL, NULL - }, - { - {"log_connections", PGC_SU_BACKEND, LOGGING_WHAT, - gettext_noop("Logs each successful connection."), - NULL - }, - &Log_connections, - false, - NULL, NULL, NULL - }, - { - {"log_disconnections", PGC_SU_BACKEND, LOGGING_WHAT, - gettext_noop("Logs end of a session, including duration."), - NULL - }, - &Log_disconnections, - false, - NULL, NULL, NULL - }, - { - {"log_replication_commands", PGC_SUSET, LOGGING_WHAT, - gettext_noop("Logs each replication command."), - NULL - }, - &log_replication_commands, - false, - NULL, NULL, NULL - }, - { - {"debug_assertions", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows whether the running server has assertion checks enabled."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &assert_enabled, -#ifdef USE_ASSERT_CHECKING - true, -#else - false, -#endif - NULL, NULL, NULL - }, - - { - {"exit_on_error", PGC_USERSET, ERROR_HANDLING_OPTIONS, - gettext_noop("Terminate session on any error."), - NULL - }, - &ExitOnAnyError, - false, - NULL, NULL, NULL - }, - { - {"restart_after_crash", PGC_SIGHUP, ERROR_HANDLING_OPTIONS, - gettext_noop("Reinitialize server after backend crash."), - NULL - }, - &restart_after_crash, - true, - NULL, NULL, NULL - }, - { - {"remove_temp_files_after_crash", PGC_SIGHUP, DEVELOPER_OPTIONS, - gettext_noop("Remove temporary files after backend crash."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &remove_temp_files_after_crash, - true, - NULL, NULL, NULL - }, - - { - {"log_duration", PGC_SUSET, LOGGING_WHAT, - gettext_noop("Logs the duration of each completed SQL statement."), - NULL - }, - &log_duration, - false, - NULL, NULL, NULL - }, - { - {"debug_print_parse", PGC_USERSET, LOGGING_WHAT, - gettext_noop("Logs each query's parse tree."), - NULL - }, - &Debug_print_parse, - false, - NULL, NULL, NULL - }, - { - {"debug_print_rewritten", PGC_USERSET, LOGGING_WHAT, - gettext_noop("Logs each query's rewritten parse tree."), - NULL - }, - &Debug_print_rewritten, - false, - NULL, NULL, NULL - }, - { - {"debug_print_plan", PGC_USERSET, LOGGING_WHAT, - gettext_noop("Logs each query's execution plan."), - NULL - }, - &Debug_print_plan, - false, - NULL, NULL, NULL - }, - { - {"debug_pretty_print", PGC_USERSET, LOGGING_WHAT, - gettext_noop("Indents parse and plan tree displays."), - NULL - }, - &Debug_pretty_print, - true, - NULL, NULL, NULL - }, - { - {"log_parser_stats", PGC_SUSET, STATS_MONITORING, - gettext_noop("Writes parser performance statistics to the server log."), - NULL - }, - &log_parser_stats, - false, - check_stage_log_stats, NULL, NULL - }, - { - {"log_planner_stats", PGC_SUSET, STATS_MONITORING, - gettext_noop("Writes planner performance statistics to the server log."), - NULL - }, - &log_planner_stats, - false, - check_stage_log_stats, NULL, NULL - }, - { - {"log_executor_stats", PGC_SUSET, STATS_MONITORING, - gettext_noop("Writes executor performance statistics to the server log."), - NULL - }, - &log_executor_stats, - false, - check_stage_log_stats, NULL, NULL - }, - { - {"log_statement_stats", PGC_SUSET, STATS_MONITORING, - gettext_noop("Writes cumulative performance statistics to the server log."), - NULL - }, - &log_statement_stats, - false, - check_log_stats, NULL, NULL - }, -#ifdef BTREE_BUILD_STATS - { - {"log_btree_build_stats", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Logs system resource usage statistics (memory and CPU) on various B-tree operations."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &log_btree_build_stats, - false, - NULL, NULL, NULL - }, -#endif - - { - {"track_activities", PGC_SUSET, STATS_CUMULATIVE, - gettext_noop("Collects information about executing commands."), - gettext_noop("Enables the collection of information on the currently " - "executing command of each session, along with " - "the time at which that command began execution.") - }, - &pgstat_track_activities, - true, - NULL, NULL, NULL - }, - { - {"track_counts", PGC_SUSET, STATS_CUMULATIVE, - gettext_noop("Collects statistics on database activity."), - NULL - }, - &pgstat_track_counts, - true, - NULL, NULL, NULL - }, - { - {"track_io_timing", PGC_SUSET, STATS_CUMULATIVE, - gettext_noop("Collects timing statistics for database I/O activity."), - NULL - }, - &track_io_timing, - false, - NULL, NULL, NULL - }, - { - {"track_wal_io_timing", PGC_SUSET, STATS_CUMULATIVE, - gettext_noop("Collects timing statistics for WAL I/O activity."), - NULL - }, - &track_wal_io_timing, - false, - NULL, NULL, NULL - }, - - { - {"update_process_title", PGC_SUSET, PROCESS_TITLE, - gettext_noop("Updates the process title to show the active SQL command."), - gettext_noop("Enables updating of the process title every time a new SQL command is received by the server.") - }, - &update_process_title, -#ifdef WIN32 - false, -#else - true, -#endif - NULL, NULL, NULL - }, - - { - {"autovacuum", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Starts the autovacuum subprocess."), - NULL - }, - &autovacuum_start_daemon, - true, - NULL, NULL, NULL - }, - - { - {"trace_notify", PGC_USERSET, DEVELOPER_OPTIONS, - gettext_noop("Generates debugging output for LISTEN and NOTIFY."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &Trace_notify, - false, - NULL, NULL, NULL - }, - -#ifdef LOCK_DEBUG - { - {"trace_locks", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Emits information about lock usage."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &Trace_locks, - false, - NULL, NULL, NULL - }, - { - {"trace_userlocks", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Emits information about user lock usage."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &Trace_userlocks, - false, - NULL, NULL, NULL - }, - { - {"trace_lwlocks", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Emits information about lightweight lock usage."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &Trace_lwlocks, - false, - NULL, NULL, NULL - }, - { - {"debug_deadlocks", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Dumps information about all current locks when a deadlock timeout occurs."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &Debug_deadlocks, - false, - NULL, NULL, NULL - }, -#endif - - { - {"log_lock_waits", PGC_SUSET, LOGGING_WHAT, - gettext_noop("Logs long lock waits."), - NULL - }, - &log_lock_waits, - false, - NULL, NULL, NULL - }, - { - {"log_recovery_conflict_waits", PGC_SIGHUP, LOGGING_WHAT, - gettext_noop("Logs standby recovery conflict waits."), - NULL - }, - &log_recovery_conflict_waits, - false, - NULL, NULL, NULL - }, - { - {"log_hostname", PGC_SIGHUP, LOGGING_WHAT, - gettext_noop("Logs the host name in the connection logs."), - gettext_noop("By default, connection logs only show the IP address " - "of the connecting host. If you want them to show the host name you " - "can turn this on, but depending on your host name resolution " - "setup it might impose a non-negligible performance penalty.") - }, - &log_hostname, - false, - NULL, NULL, NULL - }, - { - {"transform_null_equals", PGC_USERSET, COMPAT_OPTIONS_CLIENT, - gettext_noop("Treats \"expr=NULL\" as \"expr IS NULL\"."), - gettext_noop("When turned on, expressions of the form expr = NULL " - "(or NULL = expr) are treated as expr IS NULL, that is, they " - "return true if expr evaluates to the null value, and false " - "otherwise. The correct behavior of expr = NULL is to always " - "return null (unknown).") - }, - &Transform_null_equals, - false, - NULL, NULL, NULL - }, - { - {"db_user_namespace", PGC_SIGHUP, CONN_AUTH_AUTH, - gettext_noop("Enables per-database user names."), - NULL - }, - &Db_user_namespace, - false, - NULL, NULL, NULL - }, - { - {"default_transaction_read_only", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the default read-only status of new transactions."), - NULL, - GUC_REPORT - }, - &DefaultXactReadOnly, - false, - NULL, NULL, NULL - }, - { - {"transaction_read_only", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the current transaction's read-only status."), - NULL, - GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &XactReadOnly, - false, - check_transaction_read_only, NULL, NULL - }, - { - {"default_transaction_deferrable", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the default deferrable status of new transactions."), - NULL - }, - &DefaultXactDeferrable, - false, - NULL, NULL, NULL - }, - { - {"transaction_deferrable", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Whether to defer a read-only serializable transaction until it can be executed with no possible serialization failures."), - NULL, - GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &XactDeferrable, - false, - check_transaction_deferrable, NULL, NULL - }, - { - {"row_security", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Enable row security."), - gettext_noop("When enabled, row security will be applied to all users.") - }, - &row_security, - true, - NULL, NULL, NULL - }, - { - {"check_function_bodies", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Check routine bodies during CREATE FUNCTION and CREATE PROCEDURE."), - NULL - }, - &check_function_bodies, - true, - NULL, NULL, NULL - }, - { - {"array_nulls", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("Enable input of NULL elements in arrays."), - gettext_noop("When turned on, unquoted NULL in an array input " - "value means a null value; " - "otherwise it is taken literally.") - }, - &Array_nulls, - true, - NULL, NULL, NULL - }, - - /* - * WITH OIDS support, and consequently default_with_oids, was removed in - * PostgreSQL 12, but we tolerate the parameter being set to false to - * avoid unnecessarily breaking older dump files. - */ - { - {"default_with_oids", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("WITH OIDS is no longer supported; this can only be false."), - NULL, - GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE - }, - &default_with_oids, - false, - check_default_with_oids, NULL, NULL - }, - { - {"logging_collector", PGC_POSTMASTER, LOGGING_WHERE, - gettext_noop("Start a subprocess to capture stderr output and/or csvlogs into log files."), - NULL - }, - &Logging_collector, - false, - NULL, NULL, NULL - }, - { - {"log_truncate_on_rotation", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Truncate existing log files of same name during log rotation."), - NULL - }, - &Log_truncate_on_rotation, - false, - NULL, NULL, NULL - }, - -#ifdef TRACE_SORT - { - {"trace_sort", PGC_USERSET, DEVELOPER_OPTIONS, - gettext_noop("Emit information about resource usage in sorting."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &trace_sort, - false, - NULL, NULL, NULL - }, -#endif - -#ifdef TRACE_SYNCSCAN - /* this is undocumented because not exposed in a standard build */ - { - {"trace_syncscan", PGC_USERSET, DEVELOPER_OPTIONS, - gettext_noop("Generate debugging output for synchronized scanning."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &trace_syncscan, - false, - NULL, NULL, NULL - }, -#endif - -#ifdef DEBUG_BOUNDED_SORT - /* this is undocumented because not exposed in a standard build */ - { - { - "optimize_bounded_sort", PGC_USERSET, QUERY_TUNING_METHOD, - gettext_noop("Enable bounded sorting using heap sort."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_EXPLAIN - }, - &optimize_bounded_sort, - true, - NULL, NULL, NULL - }, -#endif - -#ifdef WAL_DEBUG - { - {"wal_debug", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Emit WAL-related debugging output."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &XLOG_DEBUG, - false, - NULL, NULL, NULL - }, -#endif - - { - {"integer_datetimes", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows whether datetimes are integer based."), - NULL, - GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &integer_datetimes, - true, - NULL, NULL, NULL - }, - - { - {"krb_caseins_users", PGC_SIGHUP, CONN_AUTH_AUTH, - gettext_noop("Sets whether Kerberos and GSSAPI user names should be treated as case-insensitive."), - NULL - }, - &pg_krb_caseins_users, - false, - NULL, NULL, NULL - }, - - { - {"escape_string_warning", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("Warn about backslash escapes in ordinary string literals."), - NULL - }, - &escape_string_warning, - true, - NULL, NULL, NULL - }, - - { - {"standard_conforming_strings", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("Causes '...' strings to treat backslashes literally."), - NULL, - GUC_REPORT - }, - &standard_conforming_strings, - true, - NULL, NULL, NULL - }, - - { - {"synchronize_seqscans", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("Enable synchronized sequential scans."), - NULL - }, - &synchronize_seqscans, - true, - NULL, NULL, NULL - }, - - { - {"recovery_target_inclusive", PGC_POSTMASTER, WAL_RECOVERY_TARGET, - gettext_noop("Sets whether to include or exclude transaction with recovery target."), - NULL - }, - &recoveryTargetInclusive, - true, - NULL, NULL, NULL - }, - - { - {"hot_standby", PGC_POSTMASTER, REPLICATION_STANDBY, - gettext_noop("Allows connections and queries during recovery."), - NULL - }, - &EnableHotStandby, - true, - NULL, NULL, NULL - }, - - { - {"hot_standby_feedback", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Allows feedback from a hot standby to the primary that will avoid query conflicts."), - NULL - }, - &hot_standby_feedback, - false, - NULL, NULL, NULL - }, - - { - {"in_hot_standby", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows whether hot standby is currently active."), - NULL, - GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &in_hot_standby, - false, - NULL, NULL, show_in_hot_standby - }, - - { - {"allow_system_table_mods", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Allows modifications of the structure of system tables."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &allowSystemTableMods, - false, - NULL, NULL, NULL - }, - - { - {"ignore_system_indexes", PGC_BACKEND, DEVELOPER_OPTIONS, - gettext_noop("Disables reading from system indexes."), - gettext_noop("It does not prevent updating the indexes, so it is safe " - "to use. The worst consequence is slowness."), - GUC_NOT_IN_SAMPLE - }, - &IgnoreSystemIndexes, - false, - NULL, NULL, NULL - }, - - { - {"allow_in_place_tablespaces", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Allows tablespaces directly inside pg_tblspc, for testing."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &allow_in_place_tablespaces, - false, - NULL, NULL, NULL - }, - - { - {"lo_compat_privileges", PGC_SUSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("Enables backward compatibility mode for privilege checks on large objects."), - gettext_noop("Skips privilege checks when reading or modifying large objects, " - "for compatibility with PostgreSQL releases prior to 9.0.") - }, - &lo_compat_privileges, - false, - NULL, NULL, NULL - }, - - { - {"quote_all_identifiers", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("When generating SQL fragments, quote all identifiers."), - NULL, - }, - "e_all_identifiers, - false, - NULL, NULL, NULL - }, - - { - {"data_checksums", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows whether data checksums are turned on for this cluster."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_RUNTIME_COMPUTED - }, - &data_checksums, - false, - NULL, NULL, NULL - }, - - { - {"syslog_sequence_numbers", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Add sequence number to syslog messages to avoid duplicate suppression."), - NULL - }, - &syslog_sequence_numbers, - true, - NULL, NULL, NULL - }, - - { - {"syslog_split_messages", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Split messages sent to syslog by lines and to fit into 1024 bytes."), - NULL - }, - &syslog_split_messages, - true, - NULL, NULL, NULL - }, - - { - {"parallel_leader_participation", PGC_USERSET, RESOURCES_ASYNCHRONOUS, - gettext_noop("Controls whether Gather and Gather Merge also run subplans."), - gettext_noop("Should gather nodes also run subplans or just gather tuples?"), - GUC_EXPLAIN - }, - ¶llel_leader_participation, - true, - NULL, NULL, NULL - }, - - { - {"jit", PGC_USERSET, QUERY_TUNING_OTHER, - gettext_noop("Allow JIT compilation."), - NULL, - GUC_EXPLAIN - }, - &jit_enabled, - true, - NULL, NULL, NULL - }, - - { - {"jit_debugging_support", PGC_SU_BACKEND, DEVELOPER_OPTIONS, - gettext_noop("Register JIT-compiled functions with debugger."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &jit_debugging_support, - false, - - /* - * This is not guaranteed to be available, but given it's a developer - * oriented option, it doesn't seem worth adding code checking - * availability. - */ - NULL, NULL, NULL - }, - - { - {"jit_dump_bitcode", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Write out LLVM bitcode to facilitate JIT debugging."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &jit_dump_bitcode, - false, - NULL, NULL, NULL - }, - - { - {"jit_expressions", PGC_USERSET, DEVELOPER_OPTIONS, - gettext_noop("Allow JIT compilation of expressions."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &jit_expressions, - true, - NULL, NULL, NULL - }, - - { - {"jit_profiling_support", PGC_SU_BACKEND, DEVELOPER_OPTIONS, - gettext_noop("Register JIT-compiled functions with perf profiler."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &jit_profiling_support, - false, - - /* - * This is not guaranteed to be available, but given it's a developer - * oriented option, it doesn't seem worth adding code checking - * availability. - */ - NULL, NULL, NULL - }, - - { - {"jit_tuple_deforming", PGC_USERSET, DEVELOPER_OPTIONS, - gettext_noop("Allow JIT compilation of tuple deforming."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &jit_tuple_deforming, - true, - NULL, NULL, NULL - }, - - { - {"data_sync_retry", PGC_POSTMASTER, ERROR_HANDLING_OPTIONS, - gettext_noop("Whether to continue running after a failure to sync data files."), - }, - &data_sync_retry, - false, - NULL, NULL, NULL - }, - - { - {"wal_receiver_create_temp_slot", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets whether a WAL receiver should create a temporary replication slot if no permanent slot is configured."), - }, - &wal_receiver_create_temp_slot, - false, - NULL, NULL, NULL - }, - - /* End-of-list marker */ - { - {NULL, 0, 0, NULL, NULL}, NULL, false, NULL, NULL, NULL - } -}; - - -static struct config_int ConfigureNamesInt[] = -{ - { - {"archive_timeout", PGC_SIGHUP, WAL_ARCHIVING, - gettext_noop("Sets the amount of time to wait before forcing a " - "switch to the next WAL file."), - NULL, - GUC_UNIT_S - }, - &XLogArchiveTimeout, - 0, 0, INT_MAX / 2, - NULL, NULL, NULL - }, - { - {"post_auth_delay", PGC_BACKEND, DEVELOPER_OPTIONS, - gettext_noop("Sets the amount of time to wait after " - "authentication on connection startup."), - gettext_noop("This allows attaching a debugger to the process."), - GUC_NOT_IN_SAMPLE | GUC_UNIT_S - }, - &PostAuthDelay, - 0, 0, INT_MAX / 1000000, - NULL, NULL, NULL - }, - { - {"default_statistics_target", PGC_USERSET, QUERY_TUNING_OTHER, - gettext_noop("Sets the default statistics target."), - gettext_noop("This applies to table columns that have not had a " - "column-specific target set via ALTER TABLE SET STATISTICS.") - }, - &default_statistics_target, - 100, 1, 10000, - NULL, NULL, NULL - }, - { - {"from_collapse_limit", PGC_USERSET, QUERY_TUNING_OTHER, - gettext_noop("Sets the FROM-list size beyond which subqueries " - "are not collapsed."), - gettext_noop("The planner will merge subqueries into upper " - "queries if the resulting FROM list would have no more than " - "this many items."), - GUC_EXPLAIN - }, - &from_collapse_limit, - 8, 1, INT_MAX, - NULL, NULL, NULL - }, - { - {"join_collapse_limit", PGC_USERSET, QUERY_TUNING_OTHER, - gettext_noop("Sets the FROM-list size beyond which JOIN " - "constructs are not flattened."), - gettext_noop("The planner will flatten explicit JOIN " - "constructs into lists of FROM items whenever a " - "list of no more than this many items would result."), - GUC_EXPLAIN - }, - &join_collapse_limit, - 8, 1, INT_MAX, - NULL, NULL, NULL - }, - { - {"geqo_threshold", PGC_USERSET, QUERY_TUNING_GEQO, - gettext_noop("Sets the threshold of FROM items beyond which GEQO is used."), - NULL, - GUC_EXPLAIN - }, - &geqo_threshold, - 12, 2, INT_MAX, - NULL, NULL, NULL - }, - { - {"geqo_effort", PGC_USERSET, QUERY_TUNING_GEQO, - gettext_noop("GEQO: effort is used to set the default for other GEQO parameters."), - NULL, - GUC_EXPLAIN - }, - &Geqo_effort, - DEFAULT_GEQO_EFFORT, MIN_GEQO_EFFORT, MAX_GEQO_EFFORT, - NULL, NULL, NULL - }, - { - {"geqo_pool_size", PGC_USERSET, QUERY_TUNING_GEQO, - gettext_noop("GEQO: number of individuals in the population."), - gettext_noop("Zero selects a suitable default value."), - GUC_EXPLAIN - }, - &Geqo_pool_size, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - { - {"geqo_generations", PGC_USERSET, QUERY_TUNING_GEQO, - gettext_noop("GEQO: number of iterations of the algorithm."), - gettext_noop("Zero selects a suitable default value."), - GUC_EXPLAIN - }, - &Geqo_generations, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - /* This is PGC_SUSET to prevent hiding from log_lock_waits. */ - {"deadlock_timeout", PGC_SUSET, LOCK_MANAGEMENT, - gettext_noop("Sets the time to wait on a lock before checking for deadlock."), - NULL, - GUC_UNIT_MS - }, - &DeadlockTimeout, - 1000, 1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"max_standby_archive_delay", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets the maximum delay before canceling queries when a hot standby server is processing archived WAL data."), - NULL, - GUC_UNIT_MS - }, - &max_standby_archive_delay, - 30 * 1000, -1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"max_standby_streaming_delay", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets the maximum delay before canceling queries when a hot standby server is processing streamed WAL data."), - NULL, - GUC_UNIT_MS - }, - &max_standby_streaming_delay, - 30 * 1000, -1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"recovery_min_apply_delay", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets the minimum delay for applying changes during recovery."), - NULL, - GUC_UNIT_MS - }, - &recovery_min_apply_delay, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"wal_receiver_status_interval", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets the maximum interval between WAL receiver status reports to the sending server."), - NULL, - GUC_UNIT_S - }, - &wal_receiver_status_interval, - 10, 0, INT_MAX / 1000, - NULL, NULL, NULL - }, - - { - {"wal_receiver_timeout", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets the maximum wait time to receive data from the sending server."), - NULL, - GUC_UNIT_MS - }, - &wal_receiver_timeout, - 60 * 1000, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"max_connections", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Sets the maximum number of concurrent connections."), - NULL - }, - &MaxConnections, - 100, 1, MAX_BACKENDS, - check_maxconnections, NULL, NULL - }, - - { - /* see max_connections */ - {"superuser_reserved_connections", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Sets the number of connection slots reserved for superusers."), - NULL - }, - &ReservedBackends, - 3, 0, MAX_BACKENDS, - NULL, NULL, NULL - }, - - { - {"min_dynamic_shared_memory", PGC_POSTMASTER, RESOURCES_MEM, - gettext_noop("Amount of dynamic shared memory reserved at startup."), - NULL, - GUC_UNIT_MB - }, - &min_dynamic_shared_memory, - 0, 0, (int) Min((size_t) INT_MAX, SIZE_MAX / (1024 * 1024)), - NULL, NULL, NULL - }, - - /* - * We sometimes multiply the number of shared buffers by two without - * checking for overflow, so we mustn't allow more than INT_MAX / 2. - */ - { - {"shared_buffers", PGC_POSTMASTER, RESOURCES_MEM, - gettext_noop("Sets the number of shared memory buffers used by the server."), - NULL, - GUC_UNIT_BLOCKS - }, - &NBuffers, - 16384, 16, INT_MAX / 2, - NULL, NULL, NULL - }, - - { - {"shared_memory_size", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the size of the server's main shared memory area (rounded up to the nearest MB)."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_UNIT_MB | GUC_RUNTIME_COMPUTED - }, - &shared_memory_size_mb, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"shared_memory_size_in_huge_pages", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the number of huge pages needed for the main shared memory area."), - gettext_noop("-1 indicates that the value could not be determined."), - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_RUNTIME_COMPUTED - }, - &shared_memory_size_in_huge_pages, - -1, -1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"temp_buffers", PGC_USERSET, RESOURCES_MEM, - gettext_noop("Sets the maximum number of temporary buffers used by each session."), - NULL, - GUC_UNIT_BLOCKS | GUC_EXPLAIN - }, - &num_temp_buffers, - 1024, 100, INT_MAX / 2, - check_temp_buffers, NULL, NULL - }, - - { - {"port", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Sets the TCP port the server listens on."), - NULL - }, - &PostPortNumber, - DEF_PGPORT, 1, 65535, - NULL, NULL, NULL - }, - - { - {"unix_socket_permissions", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Sets the access permissions of the Unix-domain socket."), - gettext_noop("Unix-domain sockets use the usual Unix file system " - "permission set. The parameter value is expected " - "to be a numeric mode specification in the form " - "accepted by the chmod and umask system calls. " - "(To use the customary octal format the number must " - "start with a 0 (zero).)") - }, - &Unix_socket_permissions, - 0777, 0000, 0777, - NULL, NULL, show_unix_socket_permissions - }, - - { - {"log_file_mode", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Sets the file permissions for log files."), - gettext_noop("The parameter value is expected " - "to be a numeric mode specification in the form " - "accepted by the chmod and umask system calls. " - "(To use the customary octal format the number must " - "start with a 0 (zero).)") - }, - &Log_file_mode, - 0600, 0000, 0777, - NULL, NULL, show_log_file_mode - }, - - - { - {"data_directory_mode", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the mode of the data directory."), - gettext_noop("The parameter value is a numeric mode specification " - "in the form accepted by the chmod and umask system " - "calls. (To use the customary octal format the number " - "must start with a 0 (zero).)"), - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_RUNTIME_COMPUTED - }, - &data_directory_mode, - 0700, 0000, 0777, - NULL, NULL, show_data_directory_mode - }, - - { - {"work_mem", PGC_USERSET, RESOURCES_MEM, - gettext_noop("Sets the maximum memory to be used for query workspaces."), - gettext_noop("This much memory can be used by each internal " - "sort operation and hash table before switching to " - "temporary disk files."), - GUC_UNIT_KB | GUC_EXPLAIN - }, - &work_mem, - 4096, 64, MAX_KILOBYTES, - NULL, NULL, NULL - }, - - { - {"maintenance_work_mem", PGC_USERSET, RESOURCES_MEM, - gettext_noop("Sets the maximum memory to be used for maintenance operations."), - gettext_noop("This includes operations such as VACUUM and CREATE INDEX."), - GUC_UNIT_KB - }, - &maintenance_work_mem, - 65536, 1024, MAX_KILOBYTES, - NULL, NULL, NULL - }, - - { - {"logical_decoding_work_mem", PGC_USERSET, RESOURCES_MEM, - gettext_noop("Sets the maximum memory to be used for logical decoding."), - gettext_noop("This much memory can be used by each internal " - "reorder buffer before spilling to disk."), - GUC_UNIT_KB - }, - &logical_decoding_work_mem, - 65536, 64, MAX_KILOBYTES, - NULL, NULL, NULL - }, - - /* - * We use the hopefully-safely-small value of 100kB as the compiled-in - * default for max_stack_depth. InitializeGUCOptions will increase it if - * possible, depending on the actual platform-specific stack limit. - */ - { - {"max_stack_depth", PGC_SUSET, RESOURCES_MEM, - gettext_noop("Sets the maximum stack depth, in kilobytes."), - NULL, - GUC_UNIT_KB - }, - &max_stack_depth, - 100, 100, MAX_KILOBYTES, - check_max_stack_depth, assign_max_stack_depth, NULL - }, - - { - {"temp_file_limit", PGC_SUSET, RESOURCES_DISK, - gettext_noop("Limits the total size of all temporary files used by each process."), - gettext_noop("-1 means no limit."), - GUC_UNIT_KB - }, - &temp_file_limit, - -1, -1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"vacuum_cost_page_hit", PGC_USERSET, RESOURCES_VACUUM_DELAY, - gettext_noop("Vacuum cost for a page found in the buffer cache."), - NULL - }, - &VacuumCostPageHit, - 1, 0, 10000, - NULL, NULL, NULL - }, - - { - {"vacuum_cost_page_miss", PGC_USERSET, RESOURCES_VACUUM_DELAY, - gettext_noop("Vacuum cost for a page not found in the buffer cache."), - NULL - }, - &VacuumCostPageMiss, - 2, 0, 10000, - NULL, NULL, NULL - }, - - { - {"vacuum_cost_page_dirty", PGC_USERSET, RESOURCES_VACUUM_DELAY, - gettext_noop("Vacuum cost for a page dirtied by vacuum."), - NULL - }, - &VacuumCostPageDirty, - 20, 0, 10000, - NULL, NULL, NULL - }, - - { - {"vacuum_cost_limit", PGC_USERSET, RESOURCES_VACUUM_DELAY, - gettext_noop("Vacuum cost amount available before napping."), - NULL - }, - &VacuumCostLimit, - 200, 1, 10000, - NULL, NULL, NULL - }, - - { - {"autovacuum_vacuum_cost_limit", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Vacuum cost amount available before napping, for autovacuum."), - NULL - }, - &autovacuum_vac_cost_limit, - -1, -1, 10000, - NULL, NULL, NULL - }, - - { - {"max_files_per_process", PGC_POSTMASTER, RESOURCES_KERNEL, - gettext_noop("Sets the maximum number of simultaneously open files for each server process."), - NULL - }, - &max_files_per_process, - 1000, 64, INT_MAX, - NULL, NULL, NULL - }, - - /* - * See also CheckRequiredParameterValues() if this parameter changes - */ - { - {"max_prepared_transactions", PGC_POSTMASTER, RESOURCES_MEM, - gettext_noop("Sets the maximum number of simultaneously prepared transactions."), - NULL - }, - &max_prepared_xacts, - 0, 0, MAX_BACKENDS, - NULL, NULL, NULL - }, - -#ifdef LOCK_DEBUG - { - {"trace_lock_oidmin", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Sets the minimum OID of tables for tracking locks."), - gettext_noop("Is used to avoid output on system tables."), - GUC_NOT_IN_SAMPLE - }, - &Trace_lock_oidmin, - FirstNormalObjectId, 0, INT_MAX, - NULL, NULL, NULL - }, - { - {"trace_lock_table", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Sets the OID of the table with unconditionally lock tracing."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &Trace_lock_table, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, -#endif - - { - {"statement_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the maximum allowed duration of any statement."), - gettext_noop("A value of 0 turns off the timeout."), - GUC_UNIT_MS - }, - &StatementTimeout, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"lock_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the maximum allowed duration of any wait for a lock."), - gettext_noop("A value of 0 turns off the timeout."), - GUC_UNIT_MS - }, - &LockTimeout, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"idle_in_transaction_session_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the maximum allowed idle time between queries, when in a transaction."), - gettext_noop("A value of 0 turns off the timeout."), - GUC_UNIT_MS - }, - &IdleInTransactionSessionTimeout, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"idle_session_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the maximum allowed idle time between queries, when not in a transaction."), - gettext_noop("A value of 0 turns off the timeout."), - GUC_UNIT_MS - }, - &IdleSessionTimeout, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"vacuum_freeze_min_age", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Minimum age at which VACUUM should freeze a table row."), - NULL - }, - &vacuum_freeze_min_age, - 50000000, 0, 1000000000, - NULL, NULL, NULL - }, - - { - {"vacuum_freeze_table_age", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Age at which VACUUM should scan whole table to freeze tuples."), - NULL - }, - &vacuum_freeze_table_age, - 150000000, 0, 2000000000, - NULL, NULL, NULL - }, - - { - {"vacuum_multixact_freeze_min_age", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Minimum age at which VACUUM should freeze a MultiXactId in a table row."), - NULL - }, - &vacuum_multixact_freeze_min_age, - 5000000, 0, 1000000000, - NULL, NULL, NULL - }, - - { - {"vacuum_multixact_freeze_table_age", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Multixact age at which VACUUM should scan whole table to freeze tuples."), - NULL - }, - &vacuum_multixact_freeze_table_age, - 150000000, 0, 2000000000, - NULL, NULL, NULL - }, - - { - {"vacuum_defer_cleanup_age", PGC_SIGHUP, REPLICATION_PRIMARY, - gettext_noop("Number of transactions by which VACUUM and HOT cleanup should be deferred, if any."), - NULL - }, - &vacuum_defer_cleanup_age, - 0, 0, 1000000, /* see ComputeXidHorizons */ - NULL, NULL, NULL - }, - { - {"vacuum_failsafe_age", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Age at which VACUUM should trigger failsafe to avoid a wraparound outage."), - NULL - }, - &vacuum_failsafe_age, - 1600000000, 0, 2100000000, - NULL, NULL, NULL - }, - { - {"vacuum_multixact_failsafe_age", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Multixact age at which VACUUM should trigger failsafe to avoid a wraparound outage."), - NULL - }, - &vacuum_multixact_failsafe_age, - 1600000000, 0, 2100000000, - NULL, NULL, NULL - }, - - /* - * See also CheckRequiredParameterValues() if this parameter changes - */ - { - {"max_locks_per_transaction", PGC_POSTMASTER, LOCK_MANAGEMENT, - gettext_noop("Sets the maximum number of locks per transaction."), - gettext_noop("The shared lock table is sized on the assumption that " - "at most max_locks_per_transaction * max_connections distinct " - "objects will need to be locked at any one time.") - }, - &max_locks_per_xact, - 64, 10, INT_MAX, - NULL, NULL, NULL - }, - - { - {"max_pred_locks_per_transaction", PGC_POSTMASTER, LOCK_MANAGEMENT, - gettext_noop("Sets the maximum number of predicate locks per transaction."), - gettext_noop("The shared predicate lock table is sized on the assumption that " - "at most max_pred_locks_per_transaction * max_connections distinct " - "objects will need to be locked at any one time.") - }, - &max_predicate_locks_per_xact, - 64, 10, INT_MAX, - NULL, NULL, NULL - }, - - { - {"max_pred_locks_per_relation", PGC_SIGHUP, LOCK_MANAGEMENT, - gettext_noop("Sets the maximum number of predicate-locked pages and tuples per relation."), - gettext_noop("If more than this total of pages and tuples in the same relation are locked " - "by a connection, those locks are replaced by a relation-level lock.") - }, - &max_predicate_locks_per_relation, - -2, INT_MIN, INT_MAX, - NULL, NULL, NULL - }, - - { - {"max_pred_locks_per_page", PGC_SIGHUP, LOCK_MANAGEMENT, - gettext_noop("Sets the maximum number of predicate-locked tuples per page."), - gettext_noop("If more than this number of tuples on the same page are locked " - "by a connection, those locks are replaced by a page-level lock.") - }, - &max_predicate_locks_per_page, - 2, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"authentication_timeout", PGC_SIGHUP, CONN_AUTH_AUTH, - gettext_noop("Sets the maximum allowed time to complete client authentication."), - NULL, - GUC_UNIT_S - }, - &AuthenticationTimeout, - 60, 1, 600, - NULL, NULL, NULL - }, - - { - /* Not for general use */ - {"pre_auth_delay", PGC_SIGHUP, DEVELOPER_OPTIONS, - gettext_noop("Sets the amount of time to wait before " - "authentication on connection startup."), - gettext_noop("This allows attaching a debugger to the process."), - GUC_NOT_IN_SAMPLE | GUC_UNIT_S - }, - &PreAuthDelay, - 0, 0, 60, - NULL, NULL, NULL - }, - - { - {"wal_decode_buffer_size", PGC_POSTMASTER, WAL_RECOVERY, - gettext_noop("Buffer size for reading ahead in the WAL during recovery."), - gettext_noop("This controls the maximum distance we can read ahead in the WAL to prefetch referenced data blocks."), - GUC_UNIT_BYTE - }, - &wal_decode_buffer_size, - 512 * 1024, 64 * 1024, MaxAllocSize, - NULL, NULL, NULL - }, - - { - {"wal_keep_size", PGC_SIGHUP, REPLICATION_SENDING, - gettext_noop("Sets the size of WAL files held for standby servers."), - NULL, - GUC_UNIT_MB - }, - &wal_keep_size_mb, - 0, 0, MAX_KILOBYTES, - NULL, NULL, NULL - }, - - { - {"min_wal_size", PGC_SIGHUP, WAL_CHECKPOINTS, - gettext_noop("Sets the minimum size to shrink the WAL to."), - NULL, - GUC_UNIT_MB - }, - &min_wal_size_mb, - DEFAULT_MIN_WAL_SEGS * (DEFAULT_XLOG_SEG_SIZE / (1024 * 1024)), - 2, MAX_KILOBYTES, - NULL, NULL, NULL - }, - - { - {"max_wal_size", PGC_SIGHUP, WAL_CHECKPOINTS, - gettext_noop("Sets the WAL size that triggers a checkpoint."), - NULL, - GUC_UNIT_MB - }, - &max_wal_size_mb, - DEFAULT_MAX_WAL_SEGS * (DEFAULT_XLOG_SEG_SIZE / (1024 * 1024)), - 2, MAX_KILOBYTES, - NULL, assign_max_wal_size, NULL - }, - - { - {"checkpoint_timeout", PGC_SIGHUP, WAL_CHECKPOINTS, - gettext_noop("Sets the maximum time between automatic WAL checkpoints."), - NULL, - GUC_UNIT_S - }, - &CheckPointTimeout, - 300, 30, 86400, - NULL, NULL, NULL - }, - - { - {"checkpoint_warning", PGC_SIGHUP, WAL_CHECKPOINTS, - gettext_noop("Sets the maximum time before warning if checkpoints " - "triggered by WAL volume happen too frequently."), - gettext_noop("Write a message to the server log if checkpoints " - "caused by the filling of WAL segment files happen more " - "frequently than this amount of time. " - "Zero turns off the warning."), - GUC_UNIT_S - }, - &CheckPointWarning, - 30, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"checkpoint_flush_after", PGC_SIGHUP, WAL_CHECKPOINTS, - gettext_noop("Number of pages after which previously performed writes are flushed to disk."), - NULL, - GUC_UNIT_BLOCKS - }, - &checkpoint_flush_after, - DEFAULT_CHECKPOINT_FLUSH_AFTER, 0, WRITEBACK_MAX_PENDING_FLUSHES, - NULL, NULL, NULL - }, - - { - {"wal_buffers", PGC_POSTMASTER, WAL_SETTINGS, - gettext_noop("Sets the number of disk-page buffers in shared memory for WAL."), - NULL, - GUC_UNIT_XBLOCKS - }, - &XLOGbuffers, - -1, -1, (INT_MAX / XLOG_BLCKSZ), - check_wal_buffers, NULL, NULL - }, - - { - {"wal_writer_delay", PGC_SIGHUP, WAL_SETTINGS, - gettext_noop("Time between WAL flushes performed in the WAL writer."), - NULL, - GUC_UNIT_MS - }, - &WalWriterDelay, - 200, 1, 10000, - NULL, NULL, NULL - }, - - { - {"wal_writer_flush_after", PGC_SIGHUP, WAL_SETTINGS, - gettext_noop("Amount of WAL written out by WAL writer that triggers a flush."), - NULL, - GUC_UNIT_XBLOCKS - }, - &WalWriterFlushAfter, - (1024 * 1024) / XLOG_BLCKSZ, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"wal_skip_threshold", PGC_USERSET, WAL_SETTINGS, - gettext_noop("Minimum size of new file to fsync instead of writing WAL."), - NULL, - GUC_UNIT_KB - }, - &wal_skip_threshold, - 2048, 0, MAX_KILOBYTES, - NULL, NULL, NULL - }, - - { - {"max_wal_senders", PGC_POSTMASTER, REPLICATION_SENDING, - gettext_noop("Sets the maximum number of simultaneously running WAL sender processes."), - NULL - }, - &max_wal_senders, - 10, 0, MAX_BACKENDS, - check_max_wal_senders, NULL, NULL - }, - - { - /* see max_wal_senders */ - {"max_replication_slots", PGC_POSTMASTER, REPLICATION_SENDING, - gettext_noop("Sets the maximum number of simultaneously defined replication slots."), - NULL - }, - &max_replication_slots, - 10, 0, MAX_BACKENDS /* XXX? */ , - NULL, NULL, NULL - }, - - { - {"max_slot_wal_keep_size", PGC_SIGHUP, REPLICATION_SENDING, - gettext_noop("Sets the maximum WAL size that can be reserved by replication slots."), - gettext_noop("Replication slots will be marked as failed, and segments released " - "for deletion or recycling, if this much space is occupied by WAL " - "on disk."), - GUC_UNIT_MB - }, - &max_slot_wal_keep_size_mb, - -1, -1, MAX_KILOBYTES, - NULL, NULL, NULL - }, - - { - {"wal_sender_timeout", PGC_USERSET, REPLICATION_SENDING, - gettext_noop("Sets the maximum time to wait for WAL replication."), - NULL, - GUC_UNIT_MS - }, - &wal_sender_timeout, - 60 * 1000, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"commit_delay", PGC_SUSET, WAL_SETTINGS, - gettext_noop("Sets the delay in microseconds between transaction commit and " - "flushing WAL to disk."), - NULL - /* we have no microseconds designation, so can't supply units here */ - }, - &CommitDelay, - 0, 0, 100000, - NULL, NULL, NULL - }, - - { - {"commit_siblings", PGC_USERSET, WAL_SETTINGS, - gettext_noop("Sets the minimum number of concurrent open transactions " - "required before performing commit_delay."), - NULL - }, - &CommitSiblings, - 5, 0, 1000, - NULL, NULL, NULL - }, - - { - {"extra_float_digits", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the number of digits displayed for floating-point values."), - gettext_noop("This affects real, double precision, and geometric data types. " - "A zero or negative parameter value is added to the standard " - "number of digits (FLT_DIG or DBL_DIG as appropriate). " - "Any value greater than zero selects precise output mode.") - }, - &extra_float_digits, - 1, -15, 3, - NULL, NULL, NULL - }, - - { - {"log_min_duration_sample", PGC_SUSET, LOGGING_WHEN, - gettext_noop("Sets the minimum execution time above which " - "a sample of statements will be logged." - " Sampling is determined by log_statement_sample_rate."), - gettext_noop("Zero logs a sample of all queries. -1 turns this feature off."), - GUC_UNIT_MS - }, - &log_min_duration_sample, - -1, -1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"log_min_duration_statement", PGC_SUSET, LOGGING_WHEN, - gettext_noop("Sets the minimum execution time above which " - "all statements will be logged."), - gettext_noop("Zero prints all queries. -1 turns this feature off."), - GUC_UNIT_MS - }, - &log_min_duration_statement, - -1, -1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"log_autovacuum_min_duration", PGC_SIGHUP, LOGGING_WHAT, - gettext_noop("Sets the minimum execution time above which " - "autovacuum actions will be logged."), - gettext_noop("Zero prints all actions. -1 turns autovacuum logging off."), - GUC_UNIT_MS - }, - &Log_autovacuum_min_duration, - 600000, -1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"log_parameter_max_length", PGC_SUSET, LOGGING_WHAT, - gettext_noop("Sets the maximum length in bytes of data logged for bind " - "parameter values when logging statements."), - gettext_noop("-1 to print values in full."), - GUC_UNIT_BYTE - }, - &log_parameter_max_length, - -1, -1, INT_MAX / 2, - NULL, NULL, NULL - }, - - { - {"log_parameter_max_length_on_error", PGC_USERSET, LOGGING_WHAT, - gettext_noop("Sets the maximum length in bytes of data logged for bind " - "parameter values when logging statements, on error."), - gettext_noop("-1 to print values in full."), - GUC_UNIT_BYTE - }, - &log_parameter_max_length_on_error, - 0, -1, INT_MAX / 2, - NULL, NULL, NULL - }, - - { - {"bgwriter_delay", PGC_SIGHUP, RESOURCES_BGWRITER, - gettext_noop("Background writer sleep time between rounds."), - NULL, - GUC_UNIT_MS - }, - &BgWriterDelay, - 200, 10, 10000, - NULL, NULL, NULL - }, - - { - {"bgwriter_lru_maxpages", PGC_SIGHUP, RESOURCES_BGWRITER, - gettext_noop("Background writer maximum number of LRU pages to flush per round."), - NULL - }, - &bgwriter_lru_maxpages, - 100, 0, INT_MAX / 2, /* Same upper limit as shared_buffers */ - NULL, NULL, NULL - }, - - { - {"bgwriter_flush_after", PGC_SIGHUP, RESOURCES_BGWRITER, - gettext_noop("Number of pages after which previously performed writes are flushed to disk."), - NULL, - GUC_UNIT_BLOCKS - }, - &bgwriter_flush_after, - DEFAULT_BGWRITER_FLUSH_AFTER, 0, WRITEBACK_MAX_PENDING_FLUSHES, - NULL, NULL, NULL - }, - - { - {"effective_io_concurrency", - PGC_USERSET, - RESOURCES_ASYNCHRONOUS, - gettext_noop("Number of simultaneous requests that can be handled efficiently by the disk subsystem."), - NULL, - GUC_EXPLAIN - }, - &effective_io_concurrency, -#ifdef USE_PREFETCH - 1, -#else - 0, -#endif - 0, MAX_IO_CONCURRENCY, - check_effective_io_concurrency, NULL, NULL - }, - - { - {"maintenance_io_concurrency", - PGC_USERSET, - RESOURCES_ASYNCHRONOUS, - gettext_noop("A variant of effective_io_concurrency that is used for maintenance work."), - NULL, - GUC_EXPLAIN - }, - &maintenance_io_concurrency, -#ifdef USE_PREFETCH - 10, -#else - 0, -#endif - 0, MAX_IO_CONCURRENCY, - check_maintenance_io_concurrency, assign_maintenance_io_concurrency, - NULL - }, - - { - {"backend_flush_after", PGC_USERSET, RESOURCES_ASYNCHRONOUS, - gettext_noop("Number of pages after which previously performed writes are flushed to disk."), - NULL, - GUC_UNIT_BLOCKS - }, - &backend_flush_after, - DEFAULT_BACKEND_FLUSH_AFTER, 0, WRITEBACK_MAX_PENDING_FLUSHES, - NULL, NULL, NULL - }, - - { - {"max_worker_processes", - PGC_POSTMASTER, - RESOURCES_ASYNCHRONOUS, - gettext_noop("Maximum number of concurrent worker processes."), - NULL, - }, - &max_worker_processes, - 8, 0, MAX_BACKENDS, - check_max_worker_processes, NULL, NULL - }, - - { - {"max_logical_replication_workers", - PGC_POSTMASTER, - REPLICATION_SUBSCRIBERS, - gettext_noop("Maximum number of logical replication worker processes."), - NULL, - }, - &max_logical_replication_workers, - 4, 0, MAX_BACKENDS, - NULL, NULL, NULL - }, - - { - {"max_sync_workers_per_subscription", - PGC_SIGHUP, - REPLICATION_SUBSCRIBERS, - gettext_noop("Maximum number of table synchronization workers per subscription."), - NULL, - }, - &max_sync_workers_per_subscription, - 2, 0, MAX_BACKENDS, - NULL, NULL, NULL - }, - - { - {"log_rotation_age", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Sets the amount of time to wait before forcing " - "log file rotation."), - NULL, - GUC_UNIT_MIN - }, - &Log_RotationAge, - HOURS_PER_DAY * MINS_PER_HOUR, 0, INT_MAX / SECS_PER_MINUTE, - NULL, NULL, NULL - }, - - { - {"log_rotation_size", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Sets the maximum size a log file can reach before " - "being rotated."), - NULL, - GUC_UNIT_KB - }, - &Log_RotationSize, - 10 * 1024, 0, INT_MAX / 1024, - NULL, NULL, NULL - }, - - { - {"max_function_args", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the maximum number of function arguments."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &max_function_args, - FUNC_MAX_ARGS, FUNC_MAX_ARGS, FUNC_MAX_ARGS, - NULL, NULL, NULL - }, - - { - {"max_index_keys", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the maximum number of index keys."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &max_index_keys, - INDEX_MAX_KEYS, INDEX_MAX_KEYS, INDEX_MAX_KEYS, - NULL, NULL, NULL - }, - - { - {"max_identifier_length", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the maximum identifier length."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &max_identifier_length, - NAMEDATALEN - 1, NAMEDATALEN - 1, NAMEDATALEN - 1, - NULL, NULL, NULL - }, - - { - {"block_size", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the size of a disk block."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &block_size, - BLCKSZ, BLCKSZ, BLCKSZ, - NULL, NULL, NULL - }, - - { - {"segment_size", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the number of pages per disk file."), - NULL, - GUC_UNIT_BLOCKS | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &segment_size, - RELSEG_SIZE, RELSEG_SIZE, RELSEG_SIZE, - NULL, NULL, NULL - }, - - { - {"wal_block_size", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the block size in the write ahead log."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &wal_block_size, - XLOG_BLCKSZ, XLOG_BLCKSZ, XLOG_BLCKSZ, - NULL, NULL, NULL - }, - - { - {"wal_retrieve_retry_interval", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets the time to wait before retrying to retrieve WAL " - "after a failed attempt."), - NULL, - GUC_UNIT_MS - }, - &wal_retrieve_retry_interval, - 5000, 1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"wal_segment_size", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the size of write ahead log segments."), - NULL, - GUC_UNIT_BYTE | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_RUNTIME_COMPUTED - }, - &wal_segment_size, - DEFAULT_XLOG_SEG_SIZE, - WalSegMinSize, - WalSegMaxSize, - NULL, NULL, NULL - }, - - { - {"autovacuum_naptime", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Time to sleep between autovacuum runs."), - NULL, - GUC_UNIT_S - }, - &autovacuum_naptime, - 60, 1, INT_MAX / 1000, - NULL, NULL, NULL - }, - { - {"autovacuum_vacuum_threshold", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Minimum number of tuple updates or deletes prior to vacuum."), - NULL - }, - &autovacuum_vac_thresh, - 50, 0, INT_MAX, - NULL, NULL, NULL - }, - { - {"autovacuum_vacuum_insert_threshold", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Minimum number of tuple inserts prior to vacuum, or -1 to disable insert vacuums."), - NULL - }, - &autovacuum_vac_ins_thresh, - 1000, -1, INT_MAX, - NULL, NULL, NULL - }, - { - {"autovacuum_analyze_threshold", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Minimum number of tuple inserts, updates, or deletes prior to analyze."), - NULL - }, - &autovacuum_anl_thresh, - 50, 0, INT_MAX, - NULL, NULL, NULL - }, - { - /* see varsup.c for why this is PGC_POSTMASTER not PGC_SIGHUP */ - {"autovacuum_freeze_max_age", PGC_POSTMASTER, AUTOVACUUM, - gettext_noop("Age at which to autovacuum a table to prevent transaction ID wraparound."), - NULL - }, - &autovacuum_freeze_max_age, - - /* see vacuum_failsafe_age if you change the upper-limit value. */ - 200000000, 100000, 2000000000, - NULL, NULL, NULL - }, - { - /* see multixact.c for why this is PGC_POSTMASTER not PGC_SIGHUP */ - {"autovacuum_multixact_freeze_max_age", PGC_POSTMASTER, AUTOVACUUM, - gettext_noop("Multixact age at which to autovacuum a table to prevent multixact wraparound."), - NULL - }, - &autovacuum_multixact_freeze_max_age, - 400000000, 10000, 2000000000, - NULL, NULL, NULL - }, - { - /* see max_connections */ - {"autovacuum_max_workers", PGC_POSTMASTER, AUTOVACUUM, - gettext_noop("Sets the maximum number of simultaneously running autovacuum worker processes."), - NULL - }, - &autovacuum_max_workers, - 3, 1, MAX_BACKENDS, - check_autovacuum_max_workers, NULL, NULL - }, - - { - {"max_parallel_maintenance_workers", PGC_USERSET, RESOURCES_ASYNCHRONOUS, - gettext_noop("Sets the maximum number of parallel processes per maintenance operation."), - NULL - }, - &max_parallel_maintenance_workers, - 2, 0, 1024, - NULL, NULL, NULL - }, - - { - {"max_parallel_workers_per_gather", PGC_USERSET, RESOURCES_ASYNCHRONOUS, - gettext_noop("Sets the maximum number of parallel processes per executor node."), - NULL, - GUC_EXPLAIN - }, - &max_parallel_workers_per_gather, - 2, 0, MAX_PARALLEL_WORKER_LIMIT, - NULL, NULL, NULL - }, - - { - {"max_parallel_workers", PGC_USERSET, RESOURCES_ASYNCHRONOUS, - gettext_noop("Sets the maximum number of parallel workers that can be active at one time."), - NULL, - GUC_EXPLAIN - }, - &max_parallel_workers, - 8, 0, MAX_PARALLEL_WORKER_LIMIT, - NULL, NULL, NULL - }, - - { - {"autovacuum_work_mem", PGC_SIGHUP, RESOURCES_MEM, - gettext_noop("Sets the maximum memory to be used by each autovacuum worker process."), - NULL, - GUC_UNIT_KB - }, - &autovacuum_work_mem, - -1, -1, MAX_KILOBYTES, - check_autovacuum_work_mem, NULL, NULL - }, - - { - {"old_snapshot_threshold", PGC_POSTMASTER, RESOURCES_ASYNCHRONOUS, - gettext_noop("Time before a snapshot is too old to read pages changed after the snapshot was taken."), - gettext_noop("A value of -1 disables this feature."), - GUC_UNIT_MIN - }, - &old_snapshot_threshold, - -1, -1, MINS_PER_HOUR * HOURS_PER_DAY * 60, - NULL, NULL, NULL - }, - - { - {"tcp_keepalives_idle", PGC_USERSET, CONN_AUTH_TCP, - gettext_noop("Time between issuing TCP keepalives."), - gettext_noop("A value of 0 uses the system default."), - GUC_UNIT_S - }, - &tcp_keepalives_idle, - 0, 0, INT_MAX, - NULL, assign_tcp_keepalives_idle, show_tcp_keepalives_idle - }, - - { - {"tcp_keepalives_interval", PGC_USERSET, CONN_AUTH_TCP, - gettext_noop("Time between TCP keepalive retransmits."), - gettext_noop("A value of 0 uses the system default."), - GUC_UNIT_S - }, - &tcp_keepalives_interval, - 0, 0, INT_MAX, - NULL, assign_tcp_keepalives_interval, show_tcp_keepalives_interval - }, - - { - {"ssl_renegotiation_limit", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("SSL renegotiation is no longer supported; this can only be 0."), - NULL, - GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE, - }, - &ssl_renegotiation_limit, - 0, 0, 0, - NULL, NULL, NULL - }, - - { - {"tcp_keepalives_count", PGC_USERSET, CONN_AUTH_TCP, - gettext_noop("Maximum number of TCP keepalive retransmits."), - gettext_noop("This controls the number of consecutive keepalive retransmits that can be " - "lost before a connection is considered dead. A value of 0 uses the " - "system default."), - }, - &tcp_keepalives_count, - 0, 0, INT_MAX, - NULL, assign_tcp_keepalives_count, show_tcp_keepalives_count - }, - - { - {"gin_fuzzy_search_limit", PGC_USERSET, CLIENT_CONN_OTHER, - gettext_noop("Sets the maximum allowed result for exact search by GIN."), - NULL, - 0 - }, - &GinFuzzySearchLimit, - 0, 0, INT_MAX, - NULL, NULL, NULL - }, - - { - {"effective_cache_size", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the planner's assumption about the total size of the data caches."), - gettext_noop("That is, the total size of the caches (kernel cache and shared buffers) used for PostgreSQL data files. " - "This is measured in disk pages, which are normally 8 kB each."), - GUC_UNIT_BLOCKS | GUC_EXPLAIN, - }, - &effective_cache_size, - DEFAULT_EFFECTIVE_CACHE_SIZE, 1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"min_parallel_table_scan_size", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the minimum amount of table data for a parallel scan."), - gettext_noop("If the planner estimates that it will read a number of table pages too small to reach this limit, a parallel scan will not be considered."), - GUC_UNIT_BLOCKS | GUC_EXPLAIN, - }, - &min_parallel_table_scan_size, - (8 * 1024 * 1024) / BLCKSZ, 0, INT_MAX / 3, - NULL, NULL, NULL - }, - - { - {"min_parallel_index_scan_size", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the minimum amount of index data for a parallel scan."), - gettext_noop("If the planner estimates that it will read a number of index pages too small to reach this limit, a parallel scan will not be considered."), - GUC_UNIT_BLOCKS | GUC_EXPLAIN, - }, - &min_parallel_index_scan_size, - (512 * 1024) / BLCKSZ, 0, INT_MAX / 3, - NULL, NULL, NULL - }, - - { - /* Can't be set in postgresql.conf */ - {"server_version_num", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the server version as an integer."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &server_version_num, - PG_VERSION_NUM, PG_VERSION_NUM, PG_VERSION_NUM, - NULL, NULL, NULL - }, - - { - {"log_temp_files", PGC_SUSET, LOGGING_WHAT, - gettext_noop("Log the use of temporary files larger than this number of kilobytes."), - gettext_noop("Zero logs all files. The default is -1 (turning this feature off)."), - GUC_UNIT_KB - }, - &log_temp_files, - -1, -1, INT_MAX, - NULL, NULL, NULL - }, - - { - {"track_activity_query_size", PGC_POSTMASTER, STATS_CUMULATIVE, - gettext_noop("Sets the size reserved for pg_stat_activity.query, in bytes."), - NULL, - GUC_UNIT_BYTE - }, - &pgstat_track_activity_query_size, - 1024, 100, 1048576, - NULL, NULL, NULL - }, - - { - {"gin_pending_list_limit", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the maximum size of the pending list for GIN index."), - NULL, - GUC_UNIT_KB - }, - &gin_pending_list_limit, - 4096, 64, MAX_KILOBYTES, - NULL, NULL, NULL - }, - - { - {"tcp_user_timeout", PGC_USERSET, CONN_AUTH_TCP, - gettext_noop("TCP user timeout."), - gettext_noop("A value of 0 uses the system default."), - GUC_UNIT_MS - }, - &tcp_user_timeout, - 0, 0, INT_MAX, - NULL, assign_tcp_user_timeout, show_tcp_user_timeout - }, - - { - {"huge_page_size", PGC_POSTMASTER, RESOURCES_MEM, - gettext_noop("The size of huge page that should be requested."), - NULL, - GUC_UNIT_KB - }, - &huge_page_size, - 0, 0, INT_MAX, - check_huge_page_size, NULL, NULL - }, - - { - {"debug_discard_caches", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Aggressively flush system caches for debugging purposes."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &debug_discard_caches, -#ifdef DISCARD_CACHES_ENABLED - /* Set default based on older compile-time-only cache clobber macros */ -#if defined(CLOBBER_CACHE_RECURSIVELY) - 3, -#elif defined(CLOBBER_CACHE_ALWAYS) - 1, -#else - 0, -#endif - 0, 5, -#else /* not DISCARD_CACHES_ENABLED */ - 0, 0, 0, -#endif /* not DISCARD_CACHES_ENABLED */ - NULL, NULL, NULL - }, - - { - {"client_connection_check_interval", PGC_USERSET, CONN_AUTH_TCP, - gettext_noop("Sets the time interval between checks for disconnection while running queries."), - NULL, - GUC_UNIT_MS - }, - &client_connection_check_interval, - 0, 0, INT_MAX, - check_client_connection_check_interval, NULL, NULL - }, - - { - {"log_startup_progress_interval", PGC_SIGHUP, LOGGING_WHEN, - gettext_noop("Time between progress updates for " - "long-running startup operations."), - gettext_noop("0 turns this feature off."), - GUC_UNIT_MS, - }, - &log_startup_progress_interval, - 10000, 0, INT_MAX, - NULL, NULL, NULL - }, - - /* End-of-list marker */ - { - {NULL, 0, 0, NULL, NULL}, NULL, 0, 0, 0, NULL, NULL, NULL - } -}; - - -static struct config_real ConfigureNamesReal[] = -{ - { - {"seq_page_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the planner's estimate of the cost of a " - "sequentially fetched disk page."), - NULL, - GUC_EXPLAIN - }, - &seq_page_cost, - DEFAULT_SEQ_PAGE_COST, 0, DBL_MAX, - NULL, NULL, NULL - }, - { - {"random_page_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the planner's estimate of the cost of a " - "nonsequentially fetched disk page."), - NULL, - GUC_EXPLAIN - }, - &random_page_cost, - DEFAULT_RANDOM_PAGE_COST, 0, DBL_MAX, - NULL, NULL, NULL - }, - { - {"cpu_tuple_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the planner's estimate of the cost of " - "processing each tuple (row)."), - NULL, - GUC_EXPLAIN - }, - &cpu_tuple_cost, - DEFAULT_CPU_TUPLE_COST, 0, DBL_MAX, - NULL, NULL, NULL - }, - { - {"cpu_index_tuple_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the planner's estimate of the cost of " - "processing each index entry during an index scan."), - NULL, - GUC_EXPLAIN - }, - &cpu_index_tuple_cost, - DEFAULT_CPU_INDEX_TUPLE_COST, 0, DBL_MAX, - NULL, NULL, NULL - }, - { - {"cpu_operator_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the planner's estimate of the cost of " - "processing each operator or function call."), - NULL, - GUC_EXPLAIN - }, - &cpu_operator_cost, - DEFAULT_CPU_OPERATOR_COST, 0, DBL_MAX, - NULL, NULL, NULL - }, - { - {"parallel_tuple_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the planner's estimate of the cost of " - "passing each tuple (row) from worker to leader backend."), - NULL, - GUC_EXPLAIN - }, - ¶llel_tuple_cost, - DEFAULT_PARALLEL_TUPLE_COST, 0, DBL_MAX, - NULL, NULL, NULL - }, - { - {"parallel_setup_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Sets the planner's estimate of the cost of " - "starting up worker processes for parallel query."), - NULL, - GUC_EXPLAIN - }, - ¶llel_setup_cost, - DEFAULT_PARALLEL_SETUP_COST, 0, DBL_MAX, - NULL, NULL, NULL - }, - - { - {"jit_above_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Perform JIT compilation if query is more expensive."), - gettext_noop("-1 disables JIT compilation."), - GUC_EXPLAIN - }, - &jit_above_cost, - 100000, -1, DBL_MAX, - NULL, NULL, NULL - }, - - { - {"jit_optimize_above_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Optimize JIT-compiled functions if query is more expensive."), - gettext_noop("-1 disables optimization."), - GUC_EXPLAIN - }, - &jit_optimize_above_cost, - 500000, -1, DBL_MAX, - NULL, NULL, NULL - }, - - { - {"jit_inline_above_cost", PGC_USERSET, QUERY_TUNING_COST, - gettext_noop("Perform JIT inlining if query is more expensive."), - gettext_noop("-1 disables inlining."), - GUC_EXPLAIN - }, - &jit_inline_above_cost, - 500000, -1, DBL_MAX, - NULL, NULL, NULL - }, - - { - {"cursor_tuple_fraction", PGC_USERSET, QUERY_TUNING_OTHER, - gettext_noop("Sets the planner's estimate of the fraction of " - "a cursor's rows that will be retrieved."), - NULL, - GUC_EXPLAIN - }, - &cursor_tuple_fraction, - DEFAULT_CURSOR_TUPLE_FRACTION, 0.0, 1.0, - NULL, NULL, NULL - }, - - { - {"recursive_worktable_factor", PGC_USERSET, QUERY_TUNING_OTHER, - gettext_noop("Sets the planner's estimate of the average size " - "of a recursive query's working table."), - NULL, - GUC_EXPLAIN - }, - &recursive_worktable_factor, - DEFAULT_RECURSIVE_WORKTABLE_FACTOR, 0.001, 1000000.0, - NULL, NULL, NULL - }, - - { - {"geqo_selection_bias", PGC_USERSET, QUERY_TUNING_GEQO, - gettext_noop("GEQO: selective pressure within the population."), - NULL, - GUC_EXPLAIN - }, - &Geqo_selection_bias, - DEFAULT_GEQO_SELECTION_BIAS, - MIN_GEQO_SELECTION_BIAS, MAX_GEQO_SELECTION_BIAS, - NULL, NULL, NULL - }, - { - {"geqo_seed", PGC_USERSET, QUERY_TUNING_GEQO, - gettext_noop("GEQO: seed for random path selection."), - NULL, - GUC_EXPLAIN - }, - &Geqo_seed, - 0.0, 0.0, 1.0, - NULL, NULL, NULL - }, - - { - {"hash_mem_multiplier", PGC_USERSET, RESOURCES_MEM, - gettext_noop("Multiple of work_mem to use for hash tables."), - NULL, - GUC_EXPLAIN - }, - &hash_mem_multiplier, - 2.0, 1.0, 1000.0, - NULL, NULL, NULL - }, - - { - {"bgwriter_lru_multiplier", PGC_SIGHUP, RESOURCES_BGWRITER, - gettext_noop("Multiple of the average buffer usage to free per round."), - NULL - }, - &bgwriter_lru_multiplier, - 2.0, 0.0, 10.0, - NULL, NULL, NULL - }, - - { - {"seed", PGC_USERSET, UNGROUPED, - gettext_noop("Sets the seed for random-number generation."), - NULL, - GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &phony_random_seed, - 0.0, -1.0, 1.0, - check_random_seed, assign_random_seed, show_random_seed - }, - - { - {"vacuum_cost_delay", PGC_USERSET, RESOURCES_VACUUM_DELAY, - gettext_noop("Vacuum cost delay in milliseconds."), - NULL, - GUC_UNIT_MS - }, - &VacuumCostDelay, - 0, 0, 100, - NULL, NULL, NULL - }, - - { - {"autovacuum_vacuum_cost_delay", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Vacuum cost delay in milliseconds, for autovacuum."), - NULL, - GUC_UNIT_MS - }, - &autovacuum_vac_cost_delay, - 2, -1, 100, - NULL, NULL, NULL - }, - - { - {"autovacuum_vacuum_scale_factor", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Number of tuple updates or deletes prior to vacuum as a fraction of reltuples."), - NULL - }, - &autovacuum_vac_scale, - 0.2, 0.0, 100.0, - NULL, NULL, NULL - }, - - { - {"autovacuum_vacuum_insert_scale_factor", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Number of tuple inserts prior to vacuum as a fraction of reltuples."), - NULL - }, - &autovacuum_vac_ins_scale, - 0.2, 0.0, 100.0, - NULL, NULL, NULL - }, - - { - {"autovacuum_analyze_scale_factor", PGC_SIGHUP, AUTOVACUUM, - gettext_noop("Number of tuple inserts, updates, or deletes prior to analyze as a fraction of reltuples."), - NULL - }, - &autovacuum_anl_scale, - 0.1, 0.0, 100.0, - NULL, NULL, NULL - }, - - { - {"checkpoint_completion_target", PGC_SIGHUP, WAL_CHECKPOINTS, - gettext_noop("Time spent flushing dirty buffers during checkpoint, as fraction of checkpoint interval."), - NULL - }, - &CheckPointCompletionTarget, - 0.9, 0.0, 1.0, - NULL, NULL, NULL - }, - - { - {"log_statement_sample_rate", PGC_SUSET, LOGGING_WHEN, - gettext_noop("Fraction of statements exceeding log_min_duration_sample to be logged."), - gettext_noop("Use a value between 0.0 (never log) and 1.0 (always log).") - }, - &log_statement_sample_rate, - 1.0, 0.0, 1.0, - NULL, NULL, NULL - }, - - { - {"log_transaction_sample_rate", PGC_SUSET, LOGGING_WHEN, - gettext_noop("Sets the fraction of transactions from which to log all statements."), - gettext_noop("Use a value between 0.0 (never log) and 1.0 (log all " - "statements for all transactions).") - }, - &log_xact_sample_rate, - 0.0, 0.0, 1.0, - NULL, NULL, NULL - }, - - /* End-of-list marker */ - { - {NULL, 0, 0, NULL, NULL}, NULL, 0.0, 0.0, 0.0, NULL, NULL, NULL - } -}; - - -static struct config_string ConfigureNamesString[] = -{ - { - {"archive_command", PGC_SIGHUP, WAL_ARCHIVING, - gettext_noop("Sets the shell command that will be called to archive a WAL file."), - gettext_noop("This is used only if \"archive_library\" is not set.") - }, - &XLogArchiveCommand, - "", - NULL, NULL, show_archive_command - }, - - { - {"archive_library", PGC_SIGHUP, WAL_ARCHIVING, - gettext_noop("Sets the library that will be called to archive a WAL file."), - gettext_noop("An empty string indicates that \"archive_command\" should be used.") - }, - &XLogArchiveLibrary, - "", - NULL, NULL, NULL - }, - - { - {"restore_command", PGC_SIGHUP, WAL_ARCHIVE_RECOVERY, - gettext_noop("Sets the shell command that will be called to retrieve an archived WAL file."), - NULL - }, - &recoveryRestoreCommand, - "", - NULL, NULL, NULL - }, - - { - {"archive_cleanup_command", PGC_SIGHUP, WAL_ARCHIVE_RECOVERY, - gettext_noop("Sets the shell command that will be executed at every restart point."), - NULL - }, - &archiveCleanupCommand, - "", - NULL, NULL, NULL - }, - - { - {"recovery_end_command", PGC_SIGHUP, WAL_ARCHIVE_RECOVERY, - gettext_noop("Sets the shell command that will be executed once at the end of recovery."), - NULL - }, - &recoveryEndCommand, - "", - NULL, NULL, NULL - }, - - { - {"recovery_target_timeline", PGC_POSTMASTER, WAL_RECOVERY_TARGET, - gettext_noop("Specifies the timeline to recover into."), - NULL - }, - &recovery_target_timeline_string, - "latest", - check_recovery_target_timeline, assign_recovery_target_timeline, NULL - }, - - { - {"recovery_target", PGC_POSTMASTER, WAL_RECOVERY_TARGET, - gettext_noop("Set to \"immediate\" to end recovery as soon as a consistent state is reached."), - NULL - }, - &recovery_target_string, - "", - check_recovery_target, assign_recovery_target, NULL - }, - { - {"recovery_target_xid", PGC_POSTMASTER, WAL_RECOVERY_TARGET, - gettext_noop("Sets the transaction ID up to which recovery will proceed."), - NULL - }, - &recovery_target_xid_string, - "", - check_recovery_target_xid, assign_recovery_target_xid, NULL - }, - { - {"recovery_target_time", PGC_POSTMASTER, WAL_RECOVERY_TARGET, - gettext_noop("Sets the time stamp up to which recovery will proceed."), - NULL - }, - &recovery_target_time_string, - "", - check_recovery_target_time, assign_recovery_target_time, NULL - }, - { - {"recovery_target_name", PGC_POSTMASTER, WAL_RECOVERY_TARGET, - gettext_noop("Sets the named restore point up to which recovery will proceed."), - NULL - }, - &recovery_target_name_string, - "", - check_recovery_target_name, assign_recovery_target_name, NULL - }, - { - {"recovery_target_lsn", PGC_POSTMASTER, WAL_RECOVERY_TARGET, - gettext_noop("Sets the LSN of the write-ahead log location up to which recovery will proceed."), - NULL - }, - &recovery_target_lsn_string, - "", - check_recovery_target_lsn, assign_recovery_target_lsn, NULL - }, - - { - {"promote_trigger_file", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Specifies a file name whose presence ends recovery in the standby."), - NULL - }, - &PromoteTriggerFile, - "", - NULL, NULL, NULL - }, - - { - {"primary_conninfo", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets the connection string to be used to connect to the sending server."), - NULL, - GUC_SUPERUSER_ONLY - }, - &PrimaryConnInfo, - "", - NULL, NULL, NULL - }, - - { - {"primary_slot_name", PGC_SIGHUP, REPLICATION_STANDBY, - gettext_noop("Sets the name of the replication slot to use on the sending server."), - NULL - }, - &PrimarySlotName, - "", - check_primary_slot_name, NULL, NULL - }, - - { - {"client_encoding", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the client's character set encoding."), - NULL, - GUC_IS_NAME | GUC_REPORT - }, - &client_encoding_string, - "SQL_ASCII", - check_client_encoding, assign_client_encoding, NULL - }, - - { - {"log_line_prefix", PGC_SIGHUP, LOGGING_WHAT, - gettext_noop("Controls information prefixed to each log line."), - gettext_noop("If blank, no prefix is used.") - }, - &Log_line_prefix, - "%m [%p] ", - NULL, NULL, NULL - }, - - { - {"log_timezone", PGC_SIGHUP, LOGGING_WHAT, - gettext_noop("Sets the time zone to use in log messages."), - NULL - }, - &log_timezone_string, - "GMT", - check_log_timezone, assign_log_timezone, show_log_timezone - }, - - { - {"DateStyle", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the display format for date and time values."), - gettext_noop("Also controls interpretation of ambiguous " - "date inputs."), - GUC_LIST_INPUT | GUC_REPORT - }, - &datestyle_string, - "ISO, MDY", - check_datestyle, assign_datestyle, NULL - }, - - { - {"default_table_access_method", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the default table access method for new tables."), - NULL, - GUC_IS_NAME - }, - &default_table_access_method, - DEFAULT_TABLE_ACCESS_METHOD, - check_default_table_access_method, NULL, NULL - }, - - { - {"default_tablespace", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the default tablespace to create tables and indexes in."), - gettext_noop("An empty string selects the database's default tablespace."), - GUC_IS_NAME - }, - &default_tablespace, - "", - check_default_tablespace, NULL, NULL - }, - - { - {"temp_tablespaces", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the tablespace(s) to use for temporary tables and sort files."), - NULL, - GUC_LIST_INPUT | GUC_LIST_QUOTE - }, - &temp_tablespaces, - "", - check_temp_tablespaces, assign_temp_tablespaces, NULL - }, - - { - {"dynamic_library_path", PGC_SUSET, CLIENT_CONN_OTHER, - gettext_noop("Sets the path for dynamically loadable modules."), - gettext_noop("If a dynamically loadable module needs to be opened and " - "the specified name does not have a directory component (i.e., the " - "name does not contain a slash), the system will search this path for " - "the specified file."), - GUC_SUPERUSER_ONLY - }, - &Dynamic_library_path, - "$libdir", - NULL, NULL, NULL - }, - - { - {"krb_server_keyfile", PGC_SIGHUP, CONN_AUTH_AUTH, - gettext_noop("Sets the location of the Kerberos server key file."), - NULL, - GUC_SUPERUSER_ONLY - }, - &pg_krb_server_keyfile, - PG_KRB_SRVTAB, - NULL, NULL, NULL - }, - - { - {"bonjour_name", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Sets the Bonjour service name."), - NULL - }, - &bonjour_name, - "", - NULL, NULL, NULL - }, - - /* See main.c about why defaults for LC_foo are not all alike */ - - { - {"lc_collate", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the collation order locale."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &locale_collate, - "C", - NULL, NULL, NULL - }, - - { - {"lc_ctype", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the character classification and case conversion locale."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &locale_ctype, - "C", - NULL, NULL, NULL - }, - - { - {"lc_messages", PGC_SUSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the language in which messages are displayed."), - NULL - }, - &locale_messages, - "", - check_locale_messages, assign_locale_messages, NULL - }, - - { - {"lc_monetary", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the locale for formatting monetary amounts."), - NULL - }, - &locale_monetary, - "C", - check_locale_monetary, assign_locale_monetary, NULL - }, - - { - {"lc_numeric", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the locale for formatting numbers."), - NULL - }, - &locale_numeric, - "C", - check_locale_numeric, assign_locale_numeric, NULL - }, - - { - {"lc_time", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the locale for formatting date and time values."), - NULL - }, - &locale_time, - "C", - check_locale_time, assign_locale_time, NULL - }, - - { - {"session_preload_libraries", PGC_SUSET, CLIENT_CONN_PRELOAD, - gettext_noop("Lists shared libraries to preload into each backend."), - NULL, - GUC_LIST_INPUT | GUC_LIST_QUOTE | GUC_SUPERUSER_ONLY - }, - &session_preload_libraries_string, - "", - NULL, NULL, NULL - }, - - { - {"shared_preload_libraries", PGC_POSTMASTER, CLIENT_CONN_PRELOAD, - gettext_noop("Lists shared libraries to preload into server."), - NULL, - GUC_LIST_INPUT | GUC_LIST_QUOTE | GUC_SUPERUSER_ONLY - }, - &shared_preload_libraries_string, - "", - NULL, NULL, NULL - }, - - { - {"local_preload_libraries", PGC_USERSET, CLIENT_CONN_PRELOAD, - gettext_noop("Lists unprivileged shared libraries to preload into each backend."), - NULL, - GUC_LIST_INPUT | GUC_LIST_QUOTE - }, - &local_preload_libraries_string, - "", - NULL, NULL, NULL - }, - - { - {"search_path", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the schema search order for names that are not schema-qualified."), - NULL, - GUC_LIST_INPUT | GUC_LIST_QUOTE | GUC_EXPLAIN - }, - &namespace_search_path, - "\"$user\", public", - check_search_path, assign_search_path, NULL - }, - - { - /* Can't be set in postgresql.conf */ - {"server_encoding", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the server (database) character set encoding."), - NULL, - GUC_IS_NAME | GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &server_encoding_string, - "SQL_ASCII", - NULL, NULL, NULL - }, - - { - /* Can't be set in postgresql.conf */ - {"server_version", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the server version."), - NULL, - GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &server_version_string, - PG_VERSION, - NULL, NULL, NULL - }, - - { - /* Not for general use --- used by SET ROLE */ - {"role", PGC_USERSET, UNGROUPED, - gettext_noop("Sets the current role."), - NULL, - GUC_IS_NAME | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_NOT_WHILE_SEC_REST - }, - &role_string, - "none", - check_role, assign_role, show_role - }, - - { - /* Not for general use --- used by SET SESSION AUTHORIZATION */ - {"session_authorization", PGC_USERSET, UNGROUPED, - gettext_noop("Sets the session user name."), - NULL, - GUC_IS_NAME | GUC_REPORT | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_NOT_WHILE_SEC_REST - }, - &session_authorization_string, - NULL, - check_session_authorization, assign_session_authorization, NULL - }, - - { - {"log_destination", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Sets the destination for server log output."), - gettext_noop("Valid values are combinations of \"stderr\", " - "\"syslog\", \"csvlog\", \"jsonlog\", and \"eventlog\", " - "depending on the platform."), - GUC_LIST_INPUT - }, - &Log_destination_string, - "stderr", - check_log_destination, assign_log_destination, NULL - }, - { - {"log_directory", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Sets the destination directory for log files."), - gettext_noop("Can be specified as relative to the data directory " - "or as absolute path."), - GUC_SUPERUSER_ONLY - }, - &Log_directory, - "log", - check_canonical_path, NULL, NULL - }, - { - {"log_filename", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Sets the file name pattern for log files."), - NULL, - GUC_SUPERUSER_ONLY - }, - &Log_filename, - "postgresql-%Y-%m-%d_%H%M%S.log", - NULL, NULL, NULL - }, - - { - {"syslog_ident", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Sets the program name used to identify PostgreSQL " - "messages in syslog."), - NULL - }, - &syslog_ident_str, - "postgres", - NULL, assign_syslog_ident, NULL - }, - - { - {"event_source", PGC_POSTMASTER, LOGGING_WHERE, - gettext_noop("Sets the application name used to identify " - "PostgreSQL messages in the event log."), - NULL - }, - &event_source, - DEFAULT_EVENT_SOURCE, - NULL, NULL, NULL - }, - - { - {"TimeZone", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the time zone for displaying and interpreting time stamps."), - NULL, - GUC_REPORT - }, - &timezone_string, - "GMT", - check_timezone, assign_timezone, show_timezone - }, - { - {"timezone_abbreviations", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Selects a file of time zone abbreviations."), - NULL - }, - &timezone_abbreviations_string, - NULL, - check_timezone_abbreviations, assign_timezone_abbreviations, NULL - }, - - { - {"unix_socket_group", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Sets the owning group of the Unix-domain socket."), - gettext_noop("The owning user of the socket is always the user " - "that starts the server.") - }, - &Unix_socket_group, - "", - NULL, NULL, NULL - }, - - { - {"unix_socket_directories", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Sets the directories where Unix-domain sockets will be created."), - NULL, - GUC_LIST_INPUT | GUC_LIST_QUOTE | GUC_SUPERUSER_ONLY - }, - &Unix_socket_directories, - DEFAULT_PGSOCKET_DIR, - NULL, NULL, NULL - }, - - { - {"listen_addresses", PGC_POSTMASTER, CONN_AUTH_SETTINGS, - gettext_noop("Sets the host name or IP address(es) to listen to."), - NULL, - GUC_LIST_INPUT - }, - &ListenAddresses, - "localhost", - NULL, NULL, NULL - }, - - { - /* - * Can't be set by ALTER SYSTEM as it can lead to recursive definition - * of data_directory. - */ - {"data_directory", PGC_POSTMASTER, FILE_LOCATIONS, - gettext_noop("Sets the server's data directory."), - NULL, - GUC_SUPERUSER_ONLY | GUC_DISALLOW_IN_AUTO_FILE - }, - &data_directory, - NULL, - NULL, NULL, NULL - }, - - { - {"config_file", PGC_POSTMASTER, FILE_LOCATIONS, - gettext_noop("Sets the server's main configuration file."), - NULL, - GUC_DISALLOW_IN_FILE | GUC_SUPERUSER_ONLY - }, - &ConfigFileName, - NULL, - NULL, NULL, NULL - }, - - { - {"hba_file", PGC_POSTMASTER, FILE_LOCATIONS, - gettext_noop("Sets the server's \"hba\" configuration file."), - NULL, - GUC_SUPERUSER_ONLY - }, - &HbaFileName, - NULL, - NULL, NULL, NULL - }, - - { - {"ident_file", PGC_POSTMASTER, FILE_LOCATIONS, - gettext_noop("Sets the server's \"ident\" configuration file."), - NULL, - GUC_SUPERUSER_ONLY - }, - &IdentFileName, - NULL, - NULL, NULL, NULL - }, - - { - {"external_pid_file", PGC_POSTMASTER, FILE_LOCATIONS, - gettext_noop("Writes the postmaster PID to the specified file."), - NULL, - GUC_SUPERUSER_ONLY - }, - &external_pid_file, - NULL, - check_canonical_path, NULL, NULL - }, - - { - {"ssl_library", PGC_INTERNAL, PRESET_OPTIONS, - gettext_noop("Shows the name of the SSL library."), - NULL, - GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &ssl_library, -#ifdef USE_SSL - "OpenSSL", -#else - "", -#endif - NULL, NULL, NULL - }, - - { - {"ssl_cert_file", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Location of the SSL server certificate file."), - NULL - }, - &ssl_cert_file, - "server.crt", - NULL, NULL, NULL - }, - - { - {"ssl_key_file", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Location of the SSL server private key file."), - NULL - }, - &ssl_key_file, - "server.key", - NULL, NULL, NULL - }, - - { - {"ssl_ca_file", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Location of the SSL certificate authority file."), - NULL - }, - &ssl_ca_file, - "", - NULL, NULL, NULL - }, - - { - {"ssl_crl_file", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Location of the SSL certificate revocation list file."), - NULL - }, - &ssl_crl_file, - "", - NULL, NULL, NULL - }, - - { - {"ssl_crl_dir", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Location of the SSL certificate revocation list directory."), - NULL - }, - &ssl_crl_dir, - "", - NULL, NULL, NULL - }, - - { - {"synchronous_standby_names", PGC_SIGHUP, REPLICATION_PRIMARY, - gettext_noop("Number of synchronous standbys and list of names of potential synchronous ones."), - NULL, - GUC_LIST_INPUT - }, - &SyncRepStandbyNames, - "", - check_synchronous_standby_names, assign_synchronous_standby_names, NULL - }, - - { - {"default_text_search_config", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets default text search configuration."), - NULL - }, - &TSCurrentConfig, - "pg_catalog.simple", - check_TSCurrentConfig, assign_TSCurrentConfig, NULL - }, - - { - {"ssl_ciphers", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Sets the list of allowed SSL ciphers."), - NULL, - GUC_SUPERUSER_ONLY - }, - &SSLCipherSuites, -#ifdef USE_OPENSSL - "HIGH:MEDIUM:+3DES:!aNULL", -#else - "none", -#endif - NULL, NULL, NULL - }, - - { - {"ssl_ecdh_curve", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Sets the curve to use for ECDH."), - NULL, - GUC_SUPERUSER_ONLY - }, - &SSLECDHCurve, -#ifdef USE_SSL - "prime256v1", -#else - "none", -#endif - NULL, NULL, NULL - }, - - { - {"ssl_dh_params_file", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Location of the SSL DH parameters file."), - NULL, - GUC_SUPERUSER_ONLY - }, - &ssl_dh_params_file, - "", - NULL, NULL, NULL - }, - - { - {"ssl_passphrase_command", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Command to obtain passphrases for SSL."), - NULL, - GUC_SUPERUSER_ONLY - }, - &ssl_passphrase_command, - "", - NULL, NULL, NULL - }, - - { - {"application_name", PGC_USERSET, LOGGING_WHAT, - gettext_noop("Sets the application name to be reported in statistics and logs."), - NULL, - GUC_IS_NAME | GUC_REPORT | GUC_NOT_IN_SAMPLE - }, - &application_name, - "", - check_application_name, assign_application_name, NULL - }, - - { - {"cluster_name", PGC_POSTMASTER, PROCESS_TITLE, - gettext_noop("Sets the name of the cluster, which is included in the process title."), - NULL, - GUC_IS_NAME - }, - &cluster_name, - "", - check_cluster_name, NULL, NULL - }, - - { - {"wal_consistency_checking", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Sets the WAL resource managers for which WAL consistency checks are done."), - gettext_noop("Full-page images will be logged for all data blocks and cross-checked against the results of WAL replay."), - GUC_LIST_INPUT | GUC_NOT_IN_SAMPLE - }, - &wal_consistency_checking_string, - "", - check_wal_consistency_checking, assign_wal_consistency_checking, NULL - }, - - { - {"jit_provider", PGC_POSTMASTER, CLIENT_CONN_PRELOAD, - gettext_noop("JIT provider to use."), - NULL, - GUC_SUPERUSER_ONLY - }, - &jit_provider, - "llvmjit", - NULL, NULL, NULL - }, - - { - {"backtrace_functions", PGC_SUSET, DEVELOPER_OPTIONS, - gettext_noop("Log backtrace for errors in these functions."), - NULL, - GUC_NOT_IN_SAMPLE - }, - &backtrace_functions, - "", - check_backtrace_functions, assign_backtrace_functions, NULL - }, - - /* End-of-list marker */ - { - {NULL, 0, 0, NULL, NULL}, NULL, NULL, NULL, NULL, NULL - } -}; - - -static struct config_enum ConfigureNamesEnum[] = -{ - { - {"backslash_quote", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, - gettext_noop("Sets whether \"\\'\" is allowed in string literals."), - NULL - }, - &backslash_quote, - BACKSLASH_QUOTE_SAFE_ENCODING, backslash_quote_options, - NULL, NULL, NULL - }, - - { - {"bytea_output", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the output format for bytea."), - NULL - }, - &bytea_output, - BYTEA_OUTPUT_HEX, bytea_output_options, - NULL, NULL, NULL - }, - - { - {"client_min_messages", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the message levels that are sent to the client."), - gettext_noop("Each level includes all the levels that follow it. The later" - " the level, the fewer messages are sent.") - }, - &client_min_messages, - NOTICE, client_message_level_options, - NULL, NULL, NULL - }, - - { - {"compute_query_id", PGC_SUSET, STATS_MONITORING, - gettext_noop("Enables in-core computation of query identifiers."), - NULL - }, - &compute_query_id, - COMPUTE_QUERY_ID_AUTO, compute_query_id_options, - NULL, NULL, NULL - }, - - { - {"constraint_exclusion", PGC_USERSET, QUERY_TUNING_OTHER, - gettext_noop("Enables the planner to use constraints to optimize queries."), - gettext_noop("Table scans will be skipped if their constraints" - " guarantee that no rows match the query."), - GUC_EXPLAIN - }, - &constraint_exclusion, - CONSTRAINT_EXCLUSION_PARTITION, constraint_exclusion_options, - NULL, NULL, NULL - }, - - { - {"default_toast_compression", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the default compression method for compressible values."), - NULL - }, - &default_toast_compression, - TOAST_PGLZ_COMPRESSION, - default_toast_compression_options, - NULL, NULL, NULL - }, - - { - {"default_transaction_isolation", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the transaction isolation level of each new transaction."), - NULL - }, - &DefaultXactIsoLevel, - XACT_READ_COMMITTED, isolation_level_options, - NULL, NULL, NULL - }, - - { - {"transaction_isolation", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the current transaction's isolation level."), - NULL, - GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE - }, - &XactIsoLevel, - XACT_READ_COMMITTED, isolation_level_options, - check_XactIsoLevel, NULL, NULL - }, - - { - {"IntervalStyle", PGC_USERSET, CLIENT_CONN_LOCALE, - gettext_noop("Sets the display format for interval values."), - NULL, - GUC_REPORT - }, - &IntervalStyle, - INTSTYLE_POSTGRES, intervalstyle_options, - NULL, NULL, NULL - }, - - { - {"log_error_verbosity", PGC_SUSET, LOGGING_WHAT, - gettext_noop("Sets the verbosity of logged messages."), - NULL - }, - &Log_error_verbosity, - PGERROR_DEFAULT, log_error_verbosity_options, - NULL, NULL, NULL - }, - - { - {"log_min_messages", PGC_SUSET, LOGGING_WHEN, - gettext_noop("Sets the message levels that are logged."), - gettext_noop("Each level includes all the levels that follow it. The later" - " the level, the fewer messages are sent.") - }, - &log_min_messages, - WARNING, server_message_level_options, - NULL, NULL, NULL - }, - - { - {"log_min_error_statement", PGC_SUSET, LOGGING_WHEN, - gettext_noop("Causes all statements generating error at or above this level to be logged."), - gettext_noop("Each level includes all the levels that follow it. The later" - " the level, the fewer messages are sent.") - }, - &log_min_error_statement, - ERROR, server_message_level_options, - NULL, NULL, NULL - }, - - { - {"log_statement", PGC_SUSET, LOGGING_WHAT, - gettext_noop("Sets the type of statements logged."), - NULL - }, - &log_statement, - LOGSTMT_NONE, log_statement_options, - NULL, NULL, NULL - }, - - { - {"syslog_facility", PGC_SIGHUP, LOGGING_WHERE, - gettext_noop("Sets the syslog \"facility\" to be used when syslog enabled."), - NULL - }, - &syslog_facility, -#ifdef HAVE_SYSLOG - LOG_LOCAL0, -#else - 0, -#endif - syslog_facility_options, - NULL, assign_syslog_facility, NULL - }, - - { - {"session_replication_role", PGC_SUSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets the session's behavior for triggers and rewrite rules."), - NULL - }, - &SessionReplicationRole, - SESSION_REPLICATION_ROLE_ORIGIN, session_replication_role_options, - NULL, assign_session_replication_role, NULL - }, - - { - {"synchronous_commit", PGC_USERSET, WAL_SETTINGS, - gettext_noop("Sets the current transaction's synchronization level."), - NULL - }, - &synchronous_commit, - SYNCHRONOUS_COMMIT_ON, synchronous_commit_options, - NULL, assign_synchronous_commit, NULL - }, - - { - {"archive_mode", PGC_POSTMASTER, WAL_ARCHIVING, - gettext_noop("Allows archiving of WAL files using archive_command."), - NULL - }, - &XLogArchiveMode, - ARCHIVE_MODE_OFF, archive_mode_options, - NULL, NULL, NULL - }, - - { - {"recovery_target_action", PGC_POSTMASTER, WAL_RECOVERY_TARGET, - gettext_noop("Sets the action to perform upon reaching the recovery target."), - NULL - }, - &recoveryTargetAction, - RECOVERY_TARGET_ACTION_PAUSE, recovery_target_action_options, - NULL, NULL, NULL - }, - - { - {"trace_recovery_messages", PGC_SIGHUP, DEVELOPER_OPTIONS, - gettext_noop("Enables logging of recovery-related debugging information."), - gettext_noop("Each level includes all the levels that follow it. The later" - " the level, the fewer messages are sent."), - GUC_NOT_IN_SAMPLE, - }, - &trace_recovery_messages, - - /* - * client_message_level_options allows too many values, really, but - * it's not worth having a separate options array for this. - */ - LOG, client_message_level_options, - NULL, NULL, NULL - }, - - { - {"track_functions", PGC_SUSET, STATS_CUMULATIVE, - gettext_noop("Collects function-level statistics on database activity."), - NULL - }, - &pgstat_track_functions, - TRACK_FUNC_OFF, track_function_options, - NULL, NULL, NULL - }, - - - { - {"stats_fetch_consistency", PGC_USERSET, STATS_CUMULATIVE, - gettext_noop("Sets the consistency of accesses to statistics data."), - NULL - }, - &pgstat_fetch_consistency, - PGSTAT_FETCH_CONSISTENCY_CACHE, stats_fetch_consistency, - NULL, NULL, NULL - }, - - { - {"wal_compression", PGC_SUSET, WAL_SETTINGS, - gettext_noop("Compresses full-page writes written in WAL file with specified method."), - NULL - }, - &wal_compression, - WAL_COMPRESSION_NONE, wal_compression_options, - NULL, NULL, NULL - }, - - { - {"wal_level", PGC_POSTMASTER, WAL_SETTINGS, - gettext_noop("Sets the level of information written to the WAL."), - NULL - }, - &wal_level, - WAL_LEVEL_REPLICA, wal_level_options, - NULL, NULL, NULL - }, - - { - {"dynamic_shared_memory_type", PGC_POSTMASTER, RESOURCES_MEM, - gettext_noop("Selects the dynamic shared memory implementation used."), - NULL - }, - &dynamic_shared_memory_type, - DEFAULT_DYNAMIC_SHARED_MEMORY_TYPE, dynamic_shared_memory_options, - NULL, NULL, NULL - }, - - { - {"shared_memory_type", PGC_POSTMASTER, RESOURCES_MEM, - gettext_noop("Selects the shared memory implementation used for the main shared memory region."), - NULL - }, - &shared_memory_type, - DEFAULT_SHARED_MEMORY_TYPE, shared_memory_options, - NULL, NULL, NULL - }, - - { - {"wal_sync_method", PGC_SIGHUP, WAL_SETTINGS, - gettext_noop("Selects the method used for forcing WAL updates to disk."), - NULL - }, - &sync_method, - DEFAULT_SYNC_METHOD, sync_method_options, - NULL, assign_xlog_sync_method, NULL - }, - - { - {"xmlbinary", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets how binary values are to be encoded in XML."), - NULL - }, - &xmlbinary, - XMLBINARY_BASE64, xmlbinary_options, - NULL, NULL, NULL - }, - - { - {"xmloption", PGC_USERSET, CLIENT_CONN_STATEMENT, - gettext_noop("Sets whether XML data in implicit parsing and serialization " - "operations is to be considered as documents or content fragments."), - NULL - }, - &xmloption, - XMLOPTION_CONTENT, xmloption_options, - NULL, NULL, NULL - }, - - { - {"huge_pages", PGC_POSTMASTER, RESOURCES_MEM, - gettext_noop("Use of huge pages on Linux or Windows."), - NULL - }, - &huge_pages, - HUGE_PAGES_TRY, huge_pages_options, - NULL, NULL, NULL - }, - - { - {"recovery_prefetch", PGC_SIGHUP, WAL_RECOVERY, - gettext_noop("Prefetch referenced blocks during recovery."), - gettext_noop("Look ahead in the WAL to find references to uncached data.") - }, - &recovery_prefetch, - RECOVERY_PREFETCH_TRY, recovery_prefetch_options, - check_recovery_prefetch, assign_recovery_prefetch, NULL - }, - - { - {"force_parallel_mode", PGC_USERSET, DEVELOPER_OPTIONS, - gettext_noop("Forces use of parallel query facilities."), - gettext_noop("If possible, run query using a parallel worker and with parallel restrictions."), - GUC_NOT_IN_SAMPLE | GUC_EXPLAIN - }, - &force_parallel_mode, - FORCE_PARALLEL_OFF, force_parallel_mode_options, - NULL, NULL, NULL - }, - - { - {"password_encryption", PGC_USERSET, CONN_AUTH_AUTH, - gettext_noop("Chooses the algorithm for encrypting passwords."), - NULL - }, - &Password_encryption, - PASSWORD_TYPE_SCRAM_SHA_256, password_encryption_options, - NULL, NULL, NULL - }, - - { - {"plan_cache_mode", PGC_USERSET, QUERY_TUNING_OTHER, - gettext_noop("Controls the planner's selection of custom or generic plan."), - gettext_noop("Prepared statements can have custom and generic plans, and the planner " - "will attempt to choose which is better. This can be set to override " - "the default behavior."), - GUC_EXPLAIN - }, - &plan_cache_mode, - PLAN_CACHE_MODE_AUTO, plan_cache_mode_options, - NULL, NULL, NULL - }, - - { - {"ssl_min_protocol_version", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Sets the minimum SSL/TLS protocol version to use."), - NULL, - GUC_SUPERUSER_ONLY - }, - &ssl_min_protocol_version, - PG_TLS1_2_VERSION, - ssl_protocol_versions_info + 1, /* don't allow PG_TLS_ANY */ - NULL, NULL, NULL - }, - - { - {"ssl_max_protocol_version", PGC_SIGHUP, CONN_AUTH_SSL, - gettext_noop("Sets the maximum SSL/TLS protocol version to use."), - NULL, - GUC_SUPERUSER_ONLY - }, - &ssl_max_protocol_version, - PG_TLS_ANY, - ssl_protocol_versions_info, - NULL, NULL, NULL - }, - - { - {"recovery_init_sync_method", PGC_SIGHUP, ERROR_HANDLING_OPTIONS, - gettext_noop("Sets the method for synchronizing the data directory before crash recovery."), - }, - &recovery_init_sync_method, - RECOVERY_INIT_SYNC_METHOD_FSYNC, recovery_init_sync_method_options, - NULL, NULL, NULL - }, - - /* End-of-list marker */ - { - {NULL, 0, 0, NULL, NULL}, NULL, 0, NULL, NULL, NULL, NULL - } -}; - -/******** end of options list ********/ - - -/* * To allow continued support of obsolete names for GUC variables, we apply * the following mappings to any unrecognized name. Note that an old name * should be mapped to a new one only if the new variable has very similar @@ -5157,27 +209,39 @@ static bool report_needed; /* true if any GUC_REPORT reports are needed */ static int GUCNestLevel = 0; /* 1 when in main transaction */ -static struct config_generic *find_option(const char *name, bool create_placeholders, bool skip_errors, int elevel); static int guc_var_compare(const void *a, const void *b); static void InitializeGUCOptionsFromEnvironment(void); static void InitializeOneGUCOption(struct config_generic *gconf); +static void pg_timezone_abbrev_initialize(void); static void push_old_value(struct config_generic *gconf, GucAction action); static void ReportGUCOption(struct config_generic *record); +static void set_config_sourcefile(const char *name, char *sourcefile, + int sourceline); static void reapply_stacked_values(struct config_generic *variable, struct config_string *pHolder, GucStack *stack, const char *curvalue, GucContext curscontext, GucSource cursource, Oid cursrole); -static void ShowGUCConfigOption(const char *name, DestReceiver *dest); -static void ShowAllGUCConfig(DestReceiver *dest); -static char *_ShowOption(struct config_generic *record, bool use_units); static bool validate_option_array_item(const char *name, const char *value, bool skipIfNoPermissions); static void write_auto_conf_file(int fd, const char *filename, ConfigVariable *head_p); static void replace_auto_config_value(ConfigVariable **head_p, ConfigVariable **tail_p, const char *name, const char *value); static bool valid_custom_variable_name(const char *name); +static void do_serialize(char **destptr, Size *maxbytes, + const char *fmt,...) pg_attribute_printf(3, 4); +static bool call_bool_check_hook(struct config_bool *conf, bool *newval, + void **extra, GucSource source, int elevel); +static bool call_int_check_hook(struct config_int *conf, int *newval, + void **extra, GucSource source, int elevel); +static bool call_real_check_hook(struct config_real *conf, double *newval, + void **extra, GucSource source, int elevel); +static bool call_string_check_hook(struct config_string *conf, char **newval, + void **extra, GucSource source, int elevel); +static bool call_enum_check_hook(struct config_enum *conf, int *newval, + void **extra, GucSource source, int elevel); + /* * This function handles both actual config file (re)loads and execution of @@ -5534,7 +598,7 @@ bail_out: /* * Some infrastructure for checking malloc/strdup/realloc calls */ -static void * +void * guc_malloc(int elevel, size_t size) { void *data; @@ -5550,7 +614,7 @@ guc_malloc(int elevel, size_t size) return data; } -static void * +void * guc_realloc(int elevel, void *old, size_t size) { void *data; @@ -5566,7 +630,7 @@ guc_realloc(int elevel, void *old, size_t size) return data; } -static char * +char * guc_strdup(int elevel, const char *src) { char *data; @@ -5979,7 +1043,7 @@ add_placeholder_variable(const char *name, int elevel) * can only happen when create_placeholders is true, so callers passing * false need not think terribly hard about this.) */ -static struct config_generic * +struct config_generic * find_option(const char *name, bool create_placeholders, bool skip_errors, int elevel) { @@ -6227,35 +1291,6 @@ InitializeGUCOptions(void) } /* - * If any custom resource managers were specified in the - * wal_consistency_checking GUC, processing was deferred. Now that - * shared_preload_libraries have been loaded, process wal_consistency_checking - * again. - */ -void -InitializeWalConsistencyChecking(void) -{ - Assert(process_shared_preload_libraries_done); - - if (check_wal_consistency_checking_deferred) - { - struct config_generic *guc; - - guc = find_option("wal_consistency_checking", false, false, ERROR); - - check_wal_consistency_checking_deferred = false; - - set_config_option_ext("wal_consistency_checking", - wal_consistency_checking_string, - guc->scontext, guc->source, guc->srole, - GUC_ACTION_SET, true, ERROR, false); - - /* checking should not be deferred again */ - Assert(!check_wal_consistency_checking_deferred); - } -} - -/* * Assign any GUC values that can come from the server's environment. * * This is called from InitializeGUCOptions, and also from ProcessConfigFile @@ -6448,6 +1483,7 @@ SelectConfigFiles(const char *userDoption, const char *progname) char *configdir; char *fname; struct stat stat_buf; + struct config_string *data_directory_rec; /* configdir is -D option, or $PGDATA if no -D */ if (userDoption) @@ -6521,8 +1557,10 @@ SelectConfigFiles(const char *userDoption, const char *progname) * Note: SetDataDir will copy and absolute-ize its argument, so we don't * have to. */ - if (data_directory) - SetDataDir(data_directory); + data_directory_rec = (struct config_string *) + find_option("data_directory", false, false, PANIC); + if (*data_directory_rec->variable) + SetDataDir(*data_directory_rec->variable); else if (configdir) SetDataDir(configdir); else @@ -6613,6 +1651,23 @@ SelectConfigFiles(const char *userDoption, const char *progname) return true; } +/* + * pg_timezone_abbrev_initialize --- set default value if not done already + * + * This is called after initial loading of postgresql.conf. If no + * timezone_abbreviations setting was found therein, select default. + * If a non-default value is already installed, nothing will happen. + * + * This can also be called from ProcessConfigFile to establish the default + * value after a postgresql.conf entry for it is removed. + */ +static void +pg_timezone_abbrev_initialize(void) +{ + SetConfigOption("timezone_abbreviations", "Default", + PGC_POSTMASTER, PGC_S_DYNAMIC_DEFAULT); +} + /* * Reset all options to their saved default values (implements RESET ALL) @@ -7192,7 +2247,7 @@ ReportChangedGUCOptions(void) * client. For speed, we rely on the assumption that it can never * transition from false to true. */ - if (in_hot_standby && !RecoveryInProgress()) + if (in_hot_standby_guc && !RecoveryInProgress()) SetConfigOption("in_hot_standby", "false", PGC_INTERNAL, PGC_S_OVERRIDE); @@ -7221,7 +2276,7 @@ ReportChangedGUCOptions(void) static void ReportGUCOption(struct config_generic *record) { - char *val = _ShowOption(record, false); + char *val = ShowGUCOption(record, false); if (record->last_reported == NULL || strcmp(val, record->last_reported) != 0) @@ -7400,7 +2455,7 @@ convert_real_from_base_unit(double base_value, int base_unit, * Return the name of a GUC's base unit (e.g. "ms") given its flags. * Return NULL if the GUC is unitless. */ -static const char * +const char * get_config_unit_name(int flags) { switch (flags & (GUC_UNIT_MEMORY | GUC_UNIT_TIME)) @@ -7653,12 +2708,12 @@ config_enum_lookup_by_name(struct config_enum *record, const char *value, /* - * Return a list of all available options for an enum, excluding - * hidden ones, separated by the given separator. + * Return a palloc'd string listing all the available options for an enum GUC + * (excluding hidden ones), separated by the given separator. * If prefix is non-NULL, it is added before the first enum value. * If suffix is non-NULL, it is added to the end of the string. */ -static char * +char * config_enum_get_options(struct config_enum *record, const char *prefix, const char *suffix, const char *separator) { @@ -8920,134 +3975,6 @@ GetConfigOptionFlags(const char *name, bool missing_ok) /* - * flatten_set_variable_args - * Given a parsenode List as emitted by the grammar for SET, - * convert to the flat string representation used by GUC. - * - * We need to be told the name of the variable the args are for, because - * the flattening rules vary (ugh). - * - * The result is NULL if args is NIL (i.e., SET ... TO DEFAULT), otherwise - * a palloc'd string. - */ -static char * -flatten_set_variable_args(const char *name, List *args) -{ - struct config_generic *record; - int flags; - StringInfoData buf; - ListCell *l; - - /* Fast path if just DEFAULT */ - if (args == NIL) - return NULL; - - /* - * Get flags for the variable; if it's not known, use default flags. - * (Caller might throw error later, but not our business to do so here.) - */ - record = find_option(name, false, true, WARNING); - if (record) - flags = record->flags; - else - flags = 0; - - /* Complain if list input and non-list variable */ - if ((flags & GUC_LIST_INPUT) == 0 && - list_length(args) != 1) - ereport(ERROR, - (errcode(ERRCODE_INVALID_PARAMETER_VALUE), - errmsg("SET %s takes only one argument", name))); - - initStringInfo(&buf); - - /* - * Each list member may be a plain A_Const node, or an A_Const within a - * TypeCast; the latter case is supported only for ConstInterval arguments - * (for SET TIME ZONE). - */ - foreach(l, args) - { - Node *arg = (Node *) lfirst(l); - char *val; - TypeName *typeName = NULL; - A_Const *con; - - if (l != list_head(args)) - appendStringInfoString(&buf, ", "); - - if (IsA(arg, TypeCast)) - { - TypeCast *tc = (TypeCast *) arg; - - arg = tc->arg; - typeName = tc->typeName; - } - - if (!IsA(arg, A_Const)) - elog(ERROR, "unrecognized node type: %d", (int) nodeTag(arg)); - con = (A_Const *) arg; - - switch (nodeTag(&con->val)) - { - case T_Integer: - appendStringInfo(&buf, "%d", intVal(&con->val)); - break; - case T_Float: - /* represented as a string, so just copy it */ - appendStringInfoString(&buf, castNode(Float, &con->val)->fval); - break; - case T_String: - val = strVal(&con->val); - if (typeName != NULL) - { - /* - * Must be a ConstInterval argument for TIME ZONE. Coerce - * to interval and back to normalize the value and account - * for any typmod. - */ - Oid typoid; - int32 typmod; - Datum interval; - char *intervalout; - - typenameTypeIdAndMod(NULL, typeName, &typoid, &typmod); - Assert(typoid == INTERVALOID); - - interval = - DirectFunctionCall3(interval_in, - CStringGetDatum(val), - ObjectIdGetDatum(InvalidOid), - Int32GetDatum(typmod)); - - intervalout = - DatumGetCString(DirectFunctionCall1(interval_out, - interval)); - appendStringInfo(&buf, "INTERVAL '%s'", intervalout); - } - else - { - /* - * Plain string literal or identifier. For quote mode, - * quote it if it's not a vanilla identifier. - */ - if (flags & GUC_LIST_QUOTE) - appendStringInfoString(&buf, quote_identifier(val)); - else - appendStringInfoString(&buf, val); - } - break; - default: - elog(ERROR, "unrecognized node type: %d", - (int) nodeTag(&con->val)); - break; - } - } - - return buf.data; -} - -/* * Write updated configuration parameter values into a temporary file. * This function traverses the list of parameters and quotes the string * values before writing them. @@ -9431,219 +4358,6 @@ AlterSystemSetConfigFile(AlterSystemStmt *altersysstmt) LWLockRelease(AutoFileLock); } -/* - * SET command - */ -void -ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel) -{ - GucAction action = stmt->is_local ? GUC_ACTION_LOCAL : GUC_ACTION_SET; - - /* - * Workers synchronize these parameters at the start of the parallel - * operation; then, we block SET during the operation. - */ - if (IsInParallelMode()) - ereport(ERROR, - (errcode(ERRCODE_INVALID_TRANSACTION_STATE), - errmsg("cannot set parameters during a parallel operation"))); - - switch (stmt->kind) - { - case VAR_SET_VALUE: - case VAR_SET_CURRENT: - if (stmt->is_local) - WarnNoTransactionBlock(isTopLevel, "SET LOCAL"); - (void) set_config_option(stmt->name, - ExtractSetVariableArgs(stmt), - (superuser() ? PGC_SUSET : PGC_USERSET), - PGC_S_SESSION, - action, true, 0, false); - break; - case VAR_SET_MULTI: - - /* - * Special-case SQL syntaxes. The TRANSACTION and SESSION - * CHARACTERISTICS cases effectively set more than one variable - * per statement. TRANSACTION SNAPSHOT only takes one argument, - * but we put it here anyway since it's a special case and not - * related to any GUC variable. - */ - if (strcmp(stmt->name, "TRANSACTION") == 0) - { - ListCell *head; - - WarnNoTransactionBlock(isTopLevel, "SET TRANSACTION"); - - foreach(head, stmt->args) - { - DefElem *item = (DefElem *) lfirst(head); - - if (strcmp(item->defname, "transaction_isolation") == 0) - SetPGVariable("transaction_isolation", - list_make1(item->arg), stmt->is_local); - else if (strcmp(item->defname, "transaction_read_only") == 0) - SetPGVariable("transaction_read_only", - list_make1(item->arg), stmt->is_local); - else if (strcmp(item->defname, "transaction_deferrable") == 0) - SetPGVariable("transaction_deferrable", - list_make1(item->arg), stmt->is_local); - else - elog(ERROR, "unexpected SET TRANSACTION element: %s", - item->defname); - } - } - else if (strcmp(stmt->name, "SESSION CHARACTERISTICS") == 0) - { - ListCell *head; - - foreach(head, stmt->args) - { - DefElem *item = (DefElem *) lfirst(head); - - if (strcmp(item->defname, "transaction_isolation") == 0) - SetPGVariable("default_transaction_isolation", - list_make1(item->arg), stmt->is_local); - else if (strcmp(item->defname, "transaction_read_only") == 0) - SetPGVariable("default_transaction_read_only", - list_make1(item->arg), stmt->is_local); - else if (strcmp(item->defname, "transaction_deferrable") == 0) - SetPGVariable("default_transaction_deferrable", - list_make1(item->arg), stmt->is_local); - else - elog(ERROR, "unexpected SET SESSION element: %s", - item->defname); - } - } - else if (strcmp(stmt->name, "TRANSACTION SNAPSHOT") == 0) - { - A_Const *con = linitial_node(A_Const, stmt->args); - - if (stmt->is_local) - ereport(ERROR, - (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), - errmsg("SET LOCAL TRANSACTION SNAPSHOT is not implemented"))); - - WarnNoTransactionBlock(isTopLevel, "SET TRANSACTION"); - ImportSnapshot(strVal(&con->val)); - } - else - elog(ERROR, "unexpected SET MULTI element: %s", - stmt->name); - break; - case VAR_SET_DEFAULT: - if (stmt->is_local) - WarnNoTransactionBlock(isTopLevel, "SET LOCAL"); - /* fall through */ - case VAR_RESET: - if (strcmp(stmt->name, "transaction_isolation") == 0) - WarnNoTransactionBlock(isTopLevel, "RESET TRANSACTION"); - - (void) set_config_option(stmt->name, - NULL, - (superuser() ? PGC_SUSET : PGC_USERSET), - PGC_S_SESSION, - action, true, 0, false); - break; - case VAR_RESET_ALL: - ResetAllOptions(); - break; - } - - /* Invoke the post-alter hook for setting this GUC variable, by name. */ - InvokeObjectPostAlterHookArgStr(ParameterAclRelationId, stmt->name, - ACL_SET, stmt->kind, false); -} - -/* - * Get the value to assign for a VariableSetStmt, or NULL if it's RESET. - * The result is palloc'd. - * - * This is exported for use by actions such as ALTER ROLE SET. - */ -char * -ExtractSetVariableArgs(VariableSetStmt *stmt) -{ - switch (stmt->kind) - { - case VAR_SET_VALUE: - return flatten_set_variable_args(stmt->name, stmt->args); - case VAR_SET_CURRENT: - return GetConfigOptionByName(stmt->name, NULL, false); - default: - return NULL; - } -} - -/* - * SetPGVariable - SET command exported as an easily-C-callable function. - * - * This provides access to SET TO value, as well as SET TO DEFAULT (expressed - * by passing args == NIL), but not SET FROM CURRENT functionality. - */ -void -SetPGVariable(const char *name, List *args, bool is_local) -{ - char *argstring = flatten_set_variable_args(name, args); - - /* Note SET DEFAULT (argstring == NULL) is equivalent to RESET */ - (void) set_config_option(name, - argstring, - (superuser() ? PGC_SUSET : PGC_USERSET), - PGC_S_SESSION, - is_local ? GUC_ACTION_LOCAL : GUC_ACTION_SET, - true, 0, false); -} - -/* - * SET command wrapped as a SQL callable function. - */ -Datum -set_config_by_name(PG_FUNCTION_ARGS) -{ - char *name; - char *value; - char *new_value; - bool is_local; - - if (PG_ARGISNULL(0)) - ereport(ERROR, - (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED), - errmsg("SET requires parameter name"))); - - /* Get the GUC variable name */ - name = TextDatumGetCString(PG_GETARG_DATUM(0)); - - /* Get the desired value or set to NULL for a reset request */ - if (PG_ARGISNULL(1)) - value = NULL; - else - value = TextDatumGetCString(PG_GETARG_DATUM(1)); - - /* - * Get the desired state of is_local. Default to false if provided value - * is NULL - */ - if (PG_ARGISNULL(2)) - is_local = false; - else - is_local = PG_GETARG_BOOL(2); - - /* Note SET DEFAULT (argstring == NULL) is equivalent to RESET */ - (void) set_config_option(name, - value, - (superuser() ? PGC_SUSET : PGC_USERSET), - PGC_S_SESSION, - is_local ? GUC_ACTION_LOCAL : GUC_ACTION_SET, - true, 0, false); - - /* get the new current value */ - new_value = GetConfigOptionByName(name, NULL, false); - - /* Convert return string to text */ - PG_RETURN_TEXT_P(cstring_to_text(new_value)); -} - /* * Common code for DefineCustomXXXVariable subroutines: allocate the @@ -10087,155 +4801,6 @@ MarkGUCPrefixReserved(const char *className) /* - * SHOW command - */ -void -GetPGVariable(const char *name, DestReceiver *dest) -{ - if (guc_name_compare(name, "all") == 0) - ShowAllGUCConfig(dest); - else - ShowGUCConfigOption(name, dest); -} - -TupleDesc -GetPGVariableResultDesc(const char *name) -{ - TupleDesc tupdesc; - - if (guc_name_compare(name, "all") == 0) - { - /* need a tuple descriptor representing three TEXT columns */ - tupdesc = CreateTemplateTupleDesc(3); - TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 2, "setting", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 3, "description", - TEXTOID, -1, 0); - } - else - { - const char *varname; - - /* Get the canonical spelling of name */ - (void) GetConfigOptionByName(name, &varname, false); - - /* need a tuple descriptor representing a single TEXT column */ - tupdesc = CreateTemplateTupleDesc(1); - TupleDescInitEntry(tupdesc, (AttrNumber) 1, varname, - TEXTOID, -1, 0); - } - return tupdesc; -} - - -/* - * SHOW command - */ -static void -ShowGUCConfigOption(const char *name, DestReceiver *dest) -{ - TupOutputState *tstate; - TupleDesc tupdesc; - const char *varname; - char *value; - - /* Get the value and canonical spelling of name */ - value = GetConfigOptionByName(name, &varname, false); - - /* need a tuple descriptor representing a single TEXT column */ - tupdesc = CreateTemplateTupleDesc(1); - TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 1, varname, - TEXTOID, -1, 0); - - /* prepare for projection of tuples */ - tstate = begin_tup_output_tupdesc(dest, tupdesc, &TTSOpsVirtual); - - /* Send it */ - do_text_output_oneline(tstate, value); - - end_tup_output(tstate); -} - -/* - * SHOW ALL command - */ -static void -ShowAllGUCConfig(DestReceiver *dest) -{ - int i; - TupOutputState *tstate; - TupleDesc tupdesc; - Datum values[3]; - bool isnull[3] = {false, false, false}; - - /* need a tuple descriptor representing three TEXT columns */ - tupdesc = CreateTemplateTupleDesc(3); - TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 1, "name", - TEXTOID, -1, 0); - TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 2, "setting", - TEXTOID, -1, 0); - TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 3, "description", - TEXTOID, -1, 0); - - /* prepare for projection of tuples */ - tstate = begin_tup_output_tupdesc(dest, tupdesc, &TTSOpsVirtual); - - for (i = 0; i < num_guc_variables; i++) - { - struct config_generic *conf = guc_variables[i]; - char *setting; - - if ((conf->flags & GUC_NO_SHOW_ALL) || - ((conf->flags & GUC_SUPERUSER_ONLY) && - !has_privs_of_role(GetUserId(), ROLE_PG_READ_ALL_SETTINGS))) - continue; - - /* assign to the values array */ - values[0] = PointerGetDatum(cstring_to_text(conf->name)); - - setting = _ShowOption(conf, true); - if (setting) - { - values[1] = PointerGetDatum(cstring_to_text(setting)); - isnull[1] = false; - } - else - { - values[1] = PointerGetDatum(NULL); - isnull[1] = true; - } - - if (conf->short_desc) - { - values[2] = PointerGetDatum(cstring_to_text(conf->short_desc)); - isnull[2] = false; - } - else - { - values[2] = PointerGetDatum(NULL); - isnull[2] = true; - } - - /* send it to dest */ - do_tup_output(tstate, values, isnull); - - /* clean up */ - pfree(DatumGetPointer(values[0])); - if (setting) - { - pfree(setting); - pfree(DatumGetPointer(values[1])); - } - if (conf->short_desc) - pfree(DatumGetPointer(values[2])); - } - - end_tup_output(tstate); -} - -/* * Return an array of modified GUC options to show in EXPLAIN. * * We only report options related to query planning (marked with GUC_EXPLAIN), @@ -10357,275 +4922,7 @@ GetConfigOptionByName(const char *name, const char **varname, bool missing_ok) if (varname) *varname = record->name; - return _ShowOption(record, true); -} - -/* - * Return some of the flags associated to the specified GUC in the shape of - * a text array, and NULL if it does not exist. An empty array is returned - * if the GUC exists without any meaningful flags to show. - */ -Datum -pg_settings_get_flags(PG_FUNCTION_ARGS) -{ -#define MAX_GUC_FLAGS 5 - char *varname = TextDatumGetCString(PG_GETARG_DATUM(0)); - struct config_generic *record; - int cnt = 0; - Datum flags[MAX_GUC_FLAGS]; - ArrayType *a; - - record = find_option(varname, false, true, ERROR); - - /* return NULL if no such variable */ - if (record == NULL) - PG_RETURN_NULL(); - - if (record->flags & GUC_EXPLAIN) - flags[cnt++] = CStringGetTextDatum("EXPLAIN"); - if (record->flags & GUC_NO_RESET_ALL) - flags[cnt++] = CStringGetTextDatum("NO_RESET_ALL"); - if (record->flags & GUC_NO_SHOW_ALL) - flags[cnt++] = CStringGetTextDatum("NO_SHOW_ALL"); - if (record->flags & GUC_NOT_IN_SAMPLE) - flags[cnt++] = CStringGetTextDatum("NOT_IN_SAMPLE"); - if (record->flags & GUC_RUNTIME_COMPUTED) - flags[cnt++] = CStringGetTextDatum("RUNTIME_COMPUTED"); - - Assert(cnt <= MAX_GUC_FLAGS); - - /* Returns the record as Datum */ - a = construct_array_builtin(flags, cnt, TEXTOID); - PG_RETURN_ARRAYTYPE_P(a); -} - -/* - * Return GUC variable value by variable number; optionally return canonical - * form of name. Return value is palloc'd. - */ -void -GetConfigOptionByNum(int varnum, const char **values, bool *noshow) -{ - char buffer[256]; - struct config_generic *conf; - - /* check requested variable number valid */ - Assert((varnum >= 0) && (varnum < num_guc_variables)); - - conf = guc_variables[varnum]; - - if (noshow) - { - if ((conf->flags & GUC_NO_SHOW_ALL) || - ((conf->flags & GUC_SUPERUSER_ONLY) && - !has_privs_of_role(GetUserId(), ROLE_PG_READ_ALL_SETTINGS))) - *noshow = true; - else - *noshow = false; - } - - /* first get the generic attributes */ - - /* name */ - values[0] = conf->name; - - /* setting: use _ShowOption in order to avoid duplicating the logic */ - values[1] = _ShowOption(conf, false); - - /* unit, if any (NULL is fine) */ - values[2] = get_config_unit_name(conf->flags); - - /* group */ - values[3] = _(config_group_names[conf->group]); - - /* short_desc */ - values[4] = conf->short_desc != NULL ? _(conf->short_desc) : NULL; - - /* extra_desc */ - values[5] = conf->long_desc != NULL ? _(conf->long_desc) : NULL; - - /* context */ - values[6] = GucContext_Names[conf->context]; - - /* vartype */ - values[7] = config_type_names[conf->vartype]; - - /* source */ - values[8] = GucSource_Names[conf->source]; - - /* now get the type specific attributes */ - switch (conf->vartype) - { - case PGC_BOOL: - { - struct config_bool *lconf = (struct config_bool *) conf; - - /* min_val */ - values[9] = NULL; - - /* max_val */ - values[10] = NULL; - - /* enumvals */ - values[11] = NULL; - - /* boot_val */ - values[12] = pstrdup(lconf->boot_val ? "on" : "off"); - - /* reset_val */ - values[13] = pstrdup(lconf->reset_val ? "on" : "off"); - } - break; - - case PGC_INT: - { - struct config_int *lconf = (struct config_int *) conf; - - /* min_val */ - snprintf(buffer, sizeof(buffer), "%d", lconf->min); - values[9] = pstrdup(buffer); - - /* max_val */ - snprintf(buffer, sizeof(buffer), "%d", lconf->max); - values[10] = pstrdup(buffer); - - /* enumvals */ - values[11] = NULL; - - /* boot_val */ - snprintf(buffer, sizeof(buffer), "%d", lconf->boot_val); - values[12] = pstrdup(buffer); - - /* reset_val */ - snprintf(buffer, sizeof(buffer), "%d", lconf->reset_val); - values[13] = pstrdup(buffer); - } - break; - - case PGC_REAL: - { - struct config_real *lconf = (struct config_real *) conf; - - /* min_val */ - snprintf(buffer, sizeof(buffer), "%g", lconf->min); - values[9] = pstrdup(buffer); - - /* max_val */ - snprintf(buffer, sizeof(buffer), "%g", lconf->max); - values[10] = pstrdup(buffer); - - /* enumvals */ - values[11] = NULL; - - /* boot_val */ - snprintf(buffer, sizeof(buffer), "%g", lconf->boot_val); - values[12] = pstrdup(buffer); - - /* reset_val */ - snprintf(buffer, sizeof(buffer), "%g", lconf->reset_val); - values[13] = pstrdup(buffer); - } - break; - - case PGC_STRING: - { - struct config_string *lconf = (struct config_string *) conf; - - /* min_val */ - values[9] = NULL; - - /* max_val */ - values[10] = NULL; - - /* enumvals */ - values[11] = NULL; - - /* boot_val */ - if (lconf->boot_val == NULL) - values[12] = NULL; - else - values[12] = pstrdup(lconf->boot_val); - - /* reset_val */ - if (lconf->reset_val == NULL) - values[13] = NULL; - else - values[13] = pstrdup(lconf->reset_val); - } - break; - - case PGC_ENUM: - { - struct config_enum *lconf = (struct config_enum *) conf; - - /* min_val */ - values[9] = NULL; - - /* max_val */ - values[10] = NULL; - - /* enumvals */ - - /* - * NOTE! enumvals with double quotes in them are not - * supported! - */ - values[11] = config_enum_get_options((struct config_enum *) conf, - "{\"", "\"}", "\",\""); - - /* boot_val */ - values[12] = pstrdup(config_enum_lookup_by_value(lconf, - lconf->boot_val)); - - /* reset_val */ - values[13] = pstrdup(config_enum_lookup_by_value(lconf, - lconf->reset_val)); - } - break; - - default: - { - /* - * should never get here, but in case we do, set 'em to NULL - */ - - /* min_val */ - values[9] = NULL; - - /* max_val */ - values[10] = NULL; - - /* enumvals */ - values[11] = NULL; - - /* boot_val */ - values[12] = NULL; - - /* reset_val */ - values[13] = NULL; - } - break; - } - - /* - * If the setting came from a config file, set the source location. For - * security reasons, we don't show source file/line number for - * insufficiently-privileged users. - */ - if (conf->source == PGC_S_FILE && - has_privs_of_role(GetUserId(), ROLE_PG_READ_ALL_SETTINGS)) - { - values[14] = conf->sourcefile; - snprintf(buffer, sizeof(buffer), "%d", conf->sourceline); - values[15] = pstrdup(buffer); - } - else - { - values[14] = NULL; - values[15] = NULL; - } - - values[16] = (conf->status & GUC_PENDING_RESTART) ? "t" : "f"; + return ShowGUCOption(record, true); } /* @@ -10638,253 +4935,14 @@ GetNumConfigOptions(void) } /* - * show_config_by_name - equiv to SHOW X command but implemented as - * a function. - */ -Datum -show_config_by_name(PG_FUNCTION_ARGS) -{ - char *varname = TextDatumGetCString(PG_GETARG_DATUM(0)); - char *varval; - - /* Get the value */ - varval = GetConfigOptionByName(varname, NULL, false); - - /* Convert to text */ - PG_RETURN_TEXT_P(cstring_to_text(varval)); -} - -/* - * show_config_by_name_missing_ok - equiv to SHOW X command but implemented as - * a function. If X does not exist, suppress the error and just return NULL - * if missing_ok is true. - */ -Datum -show_config_by_name_missing_ok(PG_FUNCTION_ARGS) -{ - char *varname = TextDatumGetCString(PG_GETARG_DATUM(0)); - bool missing_ok = PG_GETARG_BOOL(1); - char *varval; - - /* Get the value */ - varval = GetConfigOptionByName(varname, NULL, missing_ok); - - /* return NULL if no such variable */ - if (varval == NULL) - PG_RETURN_NULL(); - - /* Convert to text */ - PG_RETURN_TEXT_P(cstring_to_text(varval)); -} - -/* - * show_all_settings - equiv to SHOW ALL command but implemented as - * a Table Function. - */ -#define NUM_PG_SETTINGS_ATTS 17 - -Datum -show_all_settings(PG_FUNCTION_ARGS) -{ - FuncCallContext *funcctx; - TupleDesc tupdesc; - int call_cntr; - int max_calls; - AttInMetadata *attinmeta; - MemoryContext oldcontext; - - /* stuff done only on the first call of the function */ - if (SRF_IS_FIRSTCALL()) - { - /* create a function context for cross-call persistence */ - funcctx = SRF_FIRSTCALL_INIT(); - - /* - * switch to memory context appropriate for multiple function calls - */ - oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx); - - /* - * need a tuple descriptor representing NUM_PG_SETTINGS_ATTS columns - * of the appropriate types - */ - tupdesc = CreateTemplateTupleDesc(NUM_PG_SETTINGS_ATTS); - TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 2, "setting", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 3, "unit", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 4, "category", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 5, "short_desc", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 6, "extra_desc", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 7, "context", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 8, "vartype", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 9, "source", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 10, "min_val", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 11, "max_val", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 12, "enumvals", - TEXTARRAYOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 13, "boot_val", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 14, "reset_val", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 15, "sourcefile", - TEXTOID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 16, "sourceline", - INT4OID, -1, 0); - TupleDescInitEntry(tupdesc, (AttrNumber) 17, "pending_restart", - BOOLOID, -1, 0); - - /* - * Generate attribute metadata needed later to produce tuples from raw - * C strings - */ - attinmeta = TupleDescGetAttInMetadata(tupdesc); - funcctx->attinmeta = attinmeta; - - /* total number of tuples to be returned */ - funcctx->max_calls = GetNumConfigOptions(); - - MemoryContextSwitchTo(oldcontext); - } - - /* stuff done on every call of the function */ - funcctx = SRF_PERCALL_SETUP(); - - call_cntr = funcctx->call_cntr; - max_calls = funcctx->max_calls; - attinmeta = funcctx->attinmeta; - - if (call_cntr < max_calls) /* do when there is more left to send */ - { - char *values[NUM_PG_SETTINGS_ATTS]; - bool noshow; - HeapTuple tuple; - Datum result; - - /* - * Get the next visible GUC variable name and value - */ - do - { - GetConfigOptionByNum(call_cntr, (const char **) values, &noshow); - if (noshow) - { - /* bump the counter and get the next config setting */ - call_cntr = ++funcctx->call_cntr; - - /* make sure we haven't gone too far now */ - if (call_cntr >= max_calls) - SRF_RETURN_DONE(funcctx); - } - } while (noshow); - - /* build a tuple */ - tuple = BuildTupleFromCStrings(attinmeta, values); - - /* make the tuple into a datum */ - result = HeapTupleGetDatum(tuple); - - SRF_RETURN_NEXT(funcctx, result); - } - else - { - /* do when there is no more left */ - SRF_RETURN_DONE(funcctx); - } -} - -/* - * show_all_file_settings - * - * Returns a table of all parameter settings in all configuration files - * which includes the config file pathname, the line number, a sequence number - * indicating the order in which the settings were encountered, the parameter - * name and value, a bool showing if the value could be applied, and possibly - * an associated error message. (For problems such as syntax errors, the - * parameter name/value might be NULL.) + * ShowGUCOption: get string value of variable * - * Note: no filtering is done here, instead we depend on the GRANT system - * to prevent unprivileged users from accessing this function or the view - * built on top of it. + * We express a numeric value in appropriate units if it has units and + * use_units is true; else you just get the raw number. + * The result string is palloc'd. */ -Datum -show_all_file_settings(PG_FUNCTION_ARGS) -{ -#define NUM_PG_FILE_SETTINGS_ATTS 7 - ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo; - ConfigVariable *conf; - int seqno; - - /* Scan the config files using current context as workspace */ - conf = ProcessConfigFileInternal(PGC_SIGHUP, false, DEBUG3); - - /* Build a tuplestore to return our results in */ - SetSingleFuncCall(fcinfo, 0); - - /* Process the results and create a tuplestore */ - for (seqno = 1; conf != NULL; conf = conf->next, seqno++) - { - Datum values[NUM_PG_FILE_SETTINGS_ATTS]; - bool nulls[NUM_PG_FILE_SETTINGS_ATTS]; - - memset(values, 0, sizeof(values)); - memset(nulls, 0, sizeof(nulls)); - - /* sourcefile */ - if (conf->filename) - values[0] = PointerGetDatum(cstring_to_text(conf->filename)); - else - nulls[0] = true; - - /* sourceline (not meaningful if no sourcefile) */ - if (conf->filename) - values[1] = Int32GetDatum(conf->sourceline); - else - nulls[1] = true; - - /* seqno */ - values[2] = Int32GetDatum(seqno); - - /* name */ - if (conf->name) - values[3] = PointerGetDatum(cstring_to_text(conf->name)); - else - nulls[3] = true; - - /* setting */ - if (conf->value) - values[4] = PointerGetDatum(cstring_to_text(conf->value)); - else - nulls[4] = true; - - /* applied */ - values[5] = BoolGetDatum(conf->applied); - - /* error */ - if (conf->errmsg) - values[6] = PointerGetDatum(cstring_to_text(conf->errmsg)); - else - nulls[6] = true; - - /* shove row into tuplestore */ - tuplestore_putvalues(rsinfo->setResult, rsinfo->setDesc, values, nulls); - } - - return (Datum) 0; -} - -static char * -_ShowOption(struct config_generic *record, bool use_units) +char * +ShowGUCOption(struct config_generic *record, bool use_units) { char buffer[256]; const char *val; @@ -12365,989 +6423,3 @@ call_enum_check_hook(struct config_enum *conf, int *newval, void **extra, return true; } - - -/* - * check_hook, assign_hook and show_hook subroutines - */ - -static bool -check_wal_consistency_checking(char **newval, void **extra, GucSource source) -{ - char *rawstring; - List *elemlist; - ListCell *l; - bool newwalconsistency[RM_MAX_ID + 1]; - - /* Initialize the array */ - MemSet(newwalconsistency, 0, (RM_MAX_ID + 1) * sizeof(bool)); - - /* Need a modifiable copy of string */ - rawstring = pstrdup(*newval); - - /* Parse string into list of identifiers */ - if (!SplitIdentifierString(rawstring, ',', &elemlist)) - { - /* syntax error in list */ - GUC_check_errdetail("List syntax is invalid."); - pfree(rawstring); - list_free(elemlist); - return false; - } - - foreach(l, elemlist) - { - char *tok = (char *) lfirst(l); - bool found = false; - int rmid; - - /* Check for 'all'. */ - if (pg_strcasecmp(tok, "all") == 0) - { - for (rmid = 0; rmid <= RM_MAX_ID; rmid++) - if (RmgrIdExists(rmid) && GetRmgr(rmid).rm_mask != NULL) - newwalconsistency[rmid] = true; - found = true; - } - else - { - /* - * Check if the token matches with any individual resource - * manager. - */ - for (rmid = 0; rmid <= RM_MAX_ID; rmid++) - { - if (RmgrIdExists(rmid) && GetRmgr(rmid).rm_mask != NULL && - pg_strcasecmp(tok, GetRmgr(rmid).rm_name) == 0) - { - newwalconsistency[rmid] = true; - found = true; - } - } - } - - /* If a valid resource manager is found, check for the next one. */ - if (!found) - { - /* - * Perhaps it's a custom resource manager. If so, defer checking - * until InitializeWalConsistencyChecking(). - */ - if (!process_shared_preload_libraries_done) - { - check_wal_consistency_checking_deferred = true; - } - else - { - GUC_check_errdetail("Unrecognized key word: \"%s\".", tok); - pfree(rawstring); - list_free(elemlist); - return false; - } - } - } - - pfree(rawstring); - list_free(elemlist); - - /* assign new value */ - *extra = guc_malloc(ERROR, (RM_MAX_ID + 1) * sizeof(bool)); - memcpy(*extra, newwalconsistency, (RM_MAX_ID + 1) * sizeof(bool)); - return true; -} - -static void -assign_wal_consistency_checking(const char *newval, void *extra) -{ - /* - * If some checks were deferred, it's possible that the checks will fail - * later during InitializeWalConsistencyChecking(). But in that case, the - * postmaster will exit anyway, so it's safe to proceed with the - * assignment. - * - * Any built-in resource managers specified are assigned immediately, - * which affects WAL created before shared_preload_libraries are - * processed. Any custom resource managers specified won't be assigned - * until after shared_preload_libraries are processed, but that's OK - * because WAL for a custom resource manager can't be written before the - * module is loaded anyway. - */ - wal_consistency_checking = extra; -} - -static bool -check_log_destination(char **newval, void **extra, GucSource source) -{ - char *rawstring; - List *elemlist; - ListCell *l; - int newlogdest = 0; - int *myextra; - - /* Need a modifiable copy of string */ - rawstring = pstrdup(*newval); - - /* Parse string into list of identifiers */ - if (!SplitIdentifierString(rawstring, ',', &elemlist)) - { - /* syntax error in list */ - GUC_check_errdetail("List syntax is invalid."); - pfree(rawstring); - list_free(elemlist); - return false; - } - - foreach(l, elemlist) - { - char *tok = (char *) lfirst(l); - - if (pg_strcasecmp(tok, "stderr") == 0) - newlogdest |= LOG_DESTINATION_STDERR; - else if (pg_strcasecmp(tok, "csvlog") == 0) - newlogdest |= LOG_DESTINATION_CSVLOG; - else if (pg_strcasecmp(tok, "jsonlog") == 0) - newlogdest |= LOG_DESTINATION_JSONLOG; -#ifdef HAVE_SYSLOG - else if (pg_strcasecmp(tok, "syslog") == 0) - newlogdest |= LOG_DESTINATION_SYSLOG; -#endif -#ifdef WIN32 - else if (pg_strcasecmp(tok, "eventlog") == 0) - newlogdest |= LOG_DESTINATION_EVENTLOG; -#endif - else - { - GUC_check_errdetail("Unrecognized key word: \"%s\".", tok); - pfree(rawstring); - list_free(elemlist); - return false; - } - } - - pfree(rawstring); - list_free(elemlist); - - myextra = (int *) guc_malloc(ERROR, sizeof(int)); - *myextra = newlogdest; - *extra = (void *) myextra; - - return true; -} - -static void -assign_log_destination(const char *newval, void *extra) -{ - Log_destination = *((int *) extra); -} - -static void -assign_syslog_facility(int newval, void *extra) -{ -#ifdef HAVE_SYSLOG - set_syslog_parameters(syslog_ident_str ? syslog_ident_str : "postgres", - newval); -#endif - /* Without syslog support, just ignore it */ -} - -static void -assign_syslog_ident(const char *newval, void *extra) -{ -#ifdef HAVE_SYSLOG - set_syslog_parameters(newval, syslog_facility); -#endif - /* Without syslog support, it will always be set to "none", so ignore */ -} - - -static void -assign_session_replication_role(int newval, void *extra) -{ - /* - * Must flush the plan cache when changing replication role; but don't - * flush unnecessarily. - */ - if (SessionReplicationRole != newval) - ResetPlanCache(); -} - -static bool -check_temp_buffers(int *newval, void **extra, GucSource source) -{ - /* - * Once local buffers have been initialized, it's too late to change this. - * However, if this is only a test call, allow it. - */ - if (source != PGC_S_TEST && NLocBuffer && NLocBuffer != *newval) - { - GUC_check_errdetail("\"temp_buffers\" cannot be changed after any temporary tables have been accessed in the session."); - return false; - } - return true; -} - -static bool -check_bonjour(bool *newval, void **extra, GucSource source) -{ -#ifndef USE_BONJOUR - if (*newval) - { - GUC_check_errmsg("Bonjour is not supported by this build"); - return false; - } -#endif - return true; -} - -static bool -check_ssl(bool *newval, void **extra, GucSource source) -{ -#ifndef USE_SSL - if (*newval) - { - GUC_check_errmsg("SSL is not supported by this build"); - return false; - } -#endif - return true; -} - -static bool -check_stage_log_stats(bool *newval, void **extra, GucSource source) -{ - if (*newval && log_statement_stats) - { - GUC_check_errdetail("Cannot enable parameter when \"log_statement_stats\" is true."); - return false; - } - return true; -} - -static bool -check_log_stats(bool *newval, void **extra, GucSource source) -{ - if (*newval && - (log_parser_stats || log_planner_stats || log_executor_stats)) - { - GUC_check_errdetail("Cannot enable \"log_statement_stats\" when " - "\"log_parser_stats\", \"log_planner_stats\", " - "or \"log_executor_stats\" is true."); - return false; - } - return true; -} - -static bool -check_canonical_path(char **newval, void **extra, GucSource source) -{ - /* - * Since canonicalize_path never enlarges the string, we can just modify - * newval in-place. But watch out for NULL, which is the default value - * for external_pid_file. - */ - if (*newval) - canonicalize_path(*newval); - return true; -} - -static bool -check_timezone_abbreviations(char **newval, void **extra, GucSource source) -{ - /* - * The boot_val given above for timezone_abbreviations is NULL. When we - * see this we just do nothing. If this value isn't overridden from the - * config file then pg_timezone_abbrev_initialize() will eventually - * replace it with "Default". This hack has two purposes: to avoid - * wasting cycles loading values that might soon be overridden from the - * config file, and to avoid trying to read the timezone abbrev files - * during InitializeGUCOptions(). The latter doesn't work in an - * EXEC_BACKEND subprocess because my_exec_path hasn't been set yet and so - * we can't locate PGSHAREDIR. - */ - if (*newval == NULL) - { - Assert(source == PGC_S_DEFAULT); - return true; - } - - /* OK, load the file and produce a malloc'd TimeZoneAbbrevTable */ - *extra = load_tzoffsets(*newval); - - /* tzparser.c returns NULL on failure, reporting via GUC_check_errmsg */ - if (!*extra) - return false; - - return true; -} - -static void -assign_timezone_abbreviations(const char *newval, void *extra) -{ - /* Do nothing for the boot_val default of NULL */ - if (!extra) - return; - - InstallTimeZoneAbbrevs((TimeZoneAbbrevTable *) extra); -} - -/* - * pg_timezone_abbrev_initialize --- set default value if not done already - * - * This is called after initial loading of postgresql.conf. If no - * timezone_abbreviations setting was found therein, select default. - * If a non-default value is already installed, nothing will happen. - * - * This can also be called from ProcessConfigFile to establish the default - * value after a postgresql.conf entry for it is removed. - */ -static void -pg_timezone_abbrev_initialize(void) -{ - SetConfigOption("timezone_abbreviations", "Default", - PGC_POSTMASTER, PGC_S_DYNAMIC_DEFAULT); -} - -static const char * -show_archive_command(void) -{ - if (XLogArchivingActive()) - return XLogArchiveCommand; - else - return "(disabled)"; -} - -static void -assign_tcp_keepalives_idle(int newval, void *extra) -{ - /* - * The kernel API provides no way to test a value without setting it; and - * once we set it we might fail to unset it. So there seems little point - * in fully implementing the check-then-assign GUC API for these - * variables. Instead we just do the assignment on demand. pqcomm.c - * reports any problems via ereport(LOG). - * - * This approach means that the GUC value might have little to do with the - * actual kernel value, so we use a show_hook that retrieves the kernel - * value rather than trusting GUC's copy. - */ - (void) pq_setkeepalivesidle(newval, MyProcPort); -} - -static const char * -show_tcp_keepalives_idle(void) -{ - /* See comments in assign_tcp_keepalives_idle */ - static char nbuf[16]; - - snprintf(nbuf, sizeof(nbuf), "%d", pq_getkeepalivesidle(MyProcPort)); - return nbuf; -} - -static void -assign_tcp_keepalives_interval(int newval, void *extra) -{ - /* See comments in assign_tcp_keepalives_idle */ - (void) pq_setkeepalivesinterval(newval, MyProcPort); -} - -static const char * -show_tcp_keepalives_interval(void) -{ - /* See comments in assign_tcp_keepalives_idle */ - static char nbuf[16]; - - snprintf(nbuf, sizeof(nbuf), "%d", pq_getkeepalivesinterval(MyProcPort)); - return nbuf; -} - -static void -assign_tcp_keepalives_count(int newval, void *extra) -{ - /* See comments in assign_tcp_keepalives_idle */ - (void) pq_setkeepalivescount(newval, MyProcPort); -} - -static const char * -show_tcp_keepalives_count(void) -{ - /* See comments in assign_tcp_keepalives_idle */ - static char nbuf[16]; - - snprintf(nbuf, sizeof(nbuf), "%d", pq_getkeepalivescount(MyProcPort)); - return nbuf; -} - -static void -assign_tcp_user_timeout(int newval, void *extra) -{ - /* See comments in assign_tcp_keepalives_idle */ - (void) pq_settcpusertimeout(newval, MyProcPort); -} - -static const char * -show_tcp_user_timeout(void) -{ - /* See comments in assign_tcp_keepalives_idle */ - static char nbuf[16]; - - snprintf(nbuf, sizeof(nbuf), "%d", pq_gettcpusertimeout(MyProcPort)); - return nbuf; -} - -static bool -check_maxconnections(int *newval, void **extra, GucSource source) -{ - if (*newval + autovacuum_max_workers + 1 + - max_worker_processes + max_wal_senders > MAX_BACKENDS) - return false; - return true; -} - -static bool -check_autovacuum_max_workers(int *newval, void **extra, GucSource source) -{ - if (MaxConnections + *newval + 1 + - max_worker_processes + max_wal_senders > MAX_BACKENDS) - return false; - return true; -} - -static bool -check_max_wal_senders(int *newval, void **extra, GucSource source) -{ - if (MaxConnections + autovacuum_max_workers + 1 + - max_worker_processes + *newval > MAX_BACKENDS) - return false; - return true; -} - -static bool -check_autovacuum_work_mem(int *newval, void **extra, GucSource source) -{ - /* - * -1 indicates fallback. - * - * If we haven't yet changed the boot_val default of -1, just let it be. - * Autovacuum will look to maintenance_work_mem instead. - */ - if (*newval == -1) - return true; - - /* - * We clamp manually-set values to at least 1MB. Since - * maintenance_work_mem is always set to at least this value, do the same - * here. - */ - if (*newval < 1024) - *newval = 1024; - - return true; -} - -static bool -check_max_worker_processes(int *newval, void **extra, GucSource source) -{ - if (MaxConnections + autovacuum_max_workers + 1 + - *newval + max_wal_senders > MAX_BACKENDS) - return false; - return true; -} - -static bool -check_effective_io_concurrency(int *newval, void **extra, GucSource source) -{ -#ifndef USE_PREFETCH - if (*newval != 0) - { - GUC_check_errdetail("effective_io_concurrency must be set to 0 on platforms that lack posix_fadvise()."); - return false; - } -#endif /* USE_PREFETCH */ - return true; -} - -static bool -check_maintenance_io_concurrency(int *newval, void **extra, GucSource source) -{ -#ifndef USE_PREFETCH - if (*newval != 0) - { - GUC_check_errdetail("maintenance_io_concurrency must be set to 0 on platforms that lack posix_fadvise()."); - return false; - } -#endif /* USE_PREFETCH */ - return true; -} - -static bool -check_huge_page_size(int *newval, void **extra, GucSource source) -{ -#if !(defined(MAP_HUGE_MASK) && defined(MAP_HUGE_SHIFT)) - /* Recent enough Linux only, for now. See GetHugePageSize(). */ - if (*newval != 0) - { - GUC_check_errdetail("huge_page_size must be 0 on this platform."); - return false; - } -#endif - return true; -} - -static bool -check_client_connection_check_interval(int *newval, void **extra, GucSource source) -{ - if (!WaitEventSetCanReportClosed() && *newval != 0) - { - GUC_check_errdetail("client_connection_check_interval must be set to 0 on this platform."); - return false; - } - return true; -} - -static void -assign_maintenance_io_concurrency(int newval, void *extra) -{ -#ifdef USE_PREFETCH - /* - * Reconfigure recovery prefetching, because a setting it depends on - * changed. - */ - maintenance_io_concurrency = newval; - if (AmStartupProcess()) - XLogPrefetchReconfigure(); -#endif -} - -static bool -check_application_name(char **newval, void **extra, GucSource source) -{ - char *clean; - - /* Only allow clean ASCII chars in the application name */ - clean = pg_clean_ascii(*newval, MCXT_ALLOC_NO_OOM); - if (!clean) - return false; - - clean = guc_strdup(WARNING, clean); - if (!clean) - return false; - - *newval = clean; - return true; -} - -static void -assign_application_name(const char *newval, void *extra) -{ - /* Update the pg_stat_activity view */ - pgstat_report_appname(newval); -} - -static bool -check_cluster_name(char **newval, void **extra, GucSource source) -{ - char *clean; - - /* Only allow clean ASCII chars in the cluster name */ - clean = pg_clean_ascii(*newval, MCXT_ALLOC_NO_OOM); - if (!clean) - return false; - - clean = guc_strdup(WARNING, clean); - if (!clean) - return false; - - *newval = clean; - return true; -} - -static const char * -show_unix_socket_permissions(void) -{ - static char buf[12]; - - snprintf(buf, sizeof(buf), "%04o", Unix_socket_permissions); - return buf; -} - -static const char * -show_log_file_mode(void) -{ - static char buf[12]; - - snprintf(buf, sizeof(buf), "%04o", Log_file_mode); - return buf; -} - -static const char * -show_data_directory_mode(void) -{ - static char buf[12]; - - snprintf(buf, sizeof(buf), "%04o", data_directory_mode); - return buf; -} - -static const char * -show_in_hot_standby(void) -{ - /* - * We display the actual state based on shared memory, so that this GUC - * reports up-to-date state if examined intra-query. The underlying - * variable in_hot_standby changes only when we transmit a new value to - * the client. - */ - return RecoveryInProgress() ? "on" : "off"; -} - -/* - * We split the input string, where commas separate function names - * and certain whitespace chars are ignored, into a \0-separated (and - * \0\0-terminated) list of function names. This formulation allows - * easy scanning when an error is thrown while avoiding the use of - * non-reentrant strtok(), as well as keeping the output data in a - * single palloc() chunk. - */ -static bool -check_backtrace_functions(char **newval, void **extra, GucSource source) -{ - int newvallen = strlen(*newval); - char *someval; - int validlen; - int i; - int j; - - /* - * Allow characters that can be C identifiers and commas as separators, as - * well as some whitespace for readability. - */ - validlen = strspn(*newval, - "0123456789_" - "abcdefghijklmnopqrstuvwxyz" - "ABCDEFGHIJKLMNOPQRSTUVWXYZ" - ", \n\t"); - if (validlen != newvallen) - { - GUC_check_errdetail("invalid character"); - return false; - } - - if (*newval[0] == '\0') - { - *extra = NULL; - return true; - } - - /* - * Allocate space for the output and create the copy. We could discount - * whitespace chars to save some memory, but it doesn't seem worth the - * trouble. - */ - someval = guc_malloc(ERROR, newvallen + 1 + 1); - for (i = 0, j = 0; i < newvallen; i++) - { - if ((*newval)[i] == ',') - someval[j++] = '\0'; /* next item */ - else if ((*newval)[i] == ' ' || - (*newval)[i] == '\n' || - (*newval)[i] == '\t') - ; /* ignore these */ - else - someval[j++] = (*newval)[i]; /* copy anything else */ - } - - /* two \0s end the setting */ - someval[j] = '\0'; - someval[j + 1] = '\0'; - - *extra = someval; - return true; -} - -static void -assign_backtrace_functions(const char *newval, void *extra) -{ - backtrace_symbol_list = (char *) extra; -} - -static bool -check_recovery_target_timeline(char **newval, void **extra, GucSource source) -{ - RecoveryTargetTimeLineGoal rttg; - RecoveryTargetTimeLineGoal *myextra; - - if (strcmp(*newval, "current") == 0) - rttg = RECOVERY_TARGET_TIMELINE_CONTROLFILE; - else if (strcmp(*newval, "latest") == 0) - rttg = RECOVERY_TARGET_TIMELINE_LATEST; - else - { - rttg = RECOVERY_TARGET_TIMELINE_NUMERIC; - - errno = 0; - strtoul(*newval, NULL, 0); - if (errno == EINVAL || errno == ERANGE) - { - GUC_check_errdetail("recovery_target_timeline is not a valid number."); - return false; - } - } - - myextra = (RecoveryTargetTimeLineGoal *) guc_malloc(ERROR, sizeof(RecoveryTargetTimeLineGoal)); - *myextra = rttg; - *extra = (void *) myextra; - - return true; -} - -static void -assign_recovery_target_timeline(const char *newval, void *extra) -{ - recoveryTargetTimeLineGoal = *((RecoveryTargetTimeLineGoal *) extra); - if (recoveryTargetTimeLineGoal == RECOVERY_TARGET_TIMELINE_NUMERIC) - recoveryTargetTLIRequested = (TimeLineID) strtoul(newval, NULL, 0); - else - recoveryTargetTLIRequested = 0; -} - -/* - * Recovery target settings: Only one of the several recovery_target* settings - * may be set. Setting a second one results in an error. The global variable - * recoveryTarget tracks which kind of recovery target was chosen. Other - * variables store the actual target value (for example a string or a xid). - * The assign functions of the parameters check whether a competing parameter - * was already set. But we want to allow setting the same parameter multiple - * times. We also want to allow unsetting a parameter and setting a different - * one, so we unset recoveryTarget when the parameter is set to an empty - * string. - */ - -static void -pg_attribute_noreturn() -error_multiple_recovery_targets(void) -{ - ereport(ERROR, - (errcode(ERRCODE_INVALID_PARAMETER_VALUE), - errmsg("multiple recovery targets specified"), - errdetail("At most one of recovery_target, recovery_target_lsn, recovery_target_name, recovery_target_time, recovery_target_xid may be set."))); -} - -static bool -check_recovery_target(char **newval, void **extra, GucSource source) -{ - if (strcmp(*newval, "immediate") != 0 && strcmp(*newval, "") != 0) - { - GUC_check_errdetail("The only allowed value is \"immediate\"."); - return false; - } - return true; -} - -static void -assign_recovery_target(const char *newval, void *extra) -{ - if (recoveryTarget != RECOVERY_TARGET_UNSET && - recoveryTarget != RECOVERY_TARGET_IMMEDIATE) - error_multiple_recovery_targets(); - - if (newval && strcmp(newval, "") != 0) - recoveryTarget = RECOVERY_TARGET_IMMEDIATE; - else - recoveryTarget = RECOVERY_TARGET_UNSET; -} - -static bool -check_recovery_target_xid(char **newval, void **extra, GucSource source) -{ - if (strcmp(*newval, "") != 0) - { - TransactionId xid; - TransactionId *myextra; - - errno = 0; - xid = (TransactionId) strtou64(*newval, NULL, 0); - if (errno == EINVAL || errno == ERANGE) - return false; - - myextra = (TransactionId *) guc_malloc(ERROR, sizeof(TransactionId)); - *myextra = xid; - *extra = (void *) myextra; - } - return true; -} - -static void -assign_recovery_target_xid(const char *newval, void *extra) -{ - if (recoveryTarget != RECOVERY_TARGET_UNSET && - recoveryTarget != RECOVERY_TARGET_XID) - error_multiple_recovery_targets(); - - if (newval && strcmp(newval, "") != 0) - { - recoveryTarget = RECOVERY_TARGET_XID; - recoveryTargetXid = *((TransactionId *) extra); - } - else - recoveryTarget = RECOVERY_TARGET_UNSET; -} - -/* - * The interpretation of the recovery_target_time string can depend on the - * time zone setting, so we need to wait until after all GUC processing is - * done before we can do the final parsing of the string. This check function - * only does a parsing pass to catch syntax errors, but we store the string - * and parse it again when we need to use it. - */ -static bool -check_recovery_target_time(char **newval, void **extra, GucSource source) -{ - if (strcmp(*newval, "") != 0) - { - /* reject some special values */ - if (strcmp(*newval, "now") == 0 || - strcmp(*newval, "today") == 0 || - strcmp(*newval, "tomorrow") == 0 || - strcmp(*newval, "yesterday") == 0) - { - return false; - } - - /* - * parse timestamp value (see also timestamptz_in()) - */ - { - char *str = *newval; - fsec_t fsec; - struct pg_tm tt, - *tm = &tt; - int tz; - int dtype; - int nf; - int dterr; - char *field[MAXDATEFIELDS]; - int ftype[MAXDATEFIELDS]; - char workbuf[MAXDATELEN + MAXDATEFIELDS]; - TimestampTz timestamp; - - dterr = ParseDateTime(str, workbuf, sizeof(workbuf), - field, ftype, MAXDATEFIELDS, &nf); - if (dterr == 0) - dterr = DecodeDateTime(field, ftype, nf, &dtype, tm, &fsec, &tz); - if (dterr != 0) - return false; - if (dtype != DTK_DATE) - return false; - - if (tm2timestamp(tm, fsec, &tz, ×tamp) != 0) - { - GUC_check_errdetail("timestamp out of range: \"%s\"", str); - return false; - } - } - } - return true; -} - -static void -assign_recovery_target_time(const char *newval, void *extra) -{ - if (recoveryTarget != RECOVERY_TARGET_UNSET && - recoveryTarget != RECOVERY_TARGET_TIME) - error_multiple_recovery_targets(); - - if (newval && strcmp(newval, "") != 0) - recoveryTarget = RECOVERY_TARGET_TIME; - else - recoveryTarget = RECOVERY_TARGET_UNSET; -} - -static bool -check_recovery_target_name(char **newval, void **extra, GucSource source) -{ - /* Use the value of newval directly */ - if (strlen(*newval) >= MAXFNAMELEN) - { - GUC_check_errdetail("%s is too long (maximum %d characters).", - "recovery_target_name", MAXFNAMELEN - 1); - return false; - } - return true; -} - -static void -assign_recovery_target_name(const char *newval, void *extra) -{ - if (recoveryTarget != RECOVERY_TARGET_UNSET && - recoveryTarget != RECOVERY_TARGET_NAME) - error_multiple_recovery_targets(); - - if (newval && strcmp(newval, "") != 0) - { - recoveryTarget = RECOVERY_TARGET_NAME; - recoveryTargetName = newval; - } - else - recoveryTarget = RECOVERY_TARGET_UNSET; -} - -static bool -check_recovery_target_lsn(char **newval, void **extra, GucSource source) -{ - if (strcmp(*newval, "") != 0) - { - XLogRecPtr lsn; - XLogRecPtr *myextra; - bool have_error = false; - - lsn = pg_lsn_in_internal(*newval, &have_error); - if (have_error) - return false; - - myextra = (XLogRecPtr *) guc_malloc(ERROR, sizeof(XLogRecPtr)); - *myextra = lsn; - *extra = (void *) myextra; - } - return true; -} - -static void -assign_recovery_target_lsn(const char *newval, void *extra) -{ - if (recoveryTarget != RECOVERY_TARGET_UNSET && - recoveryTarget != RECOVERY_TARGET_LSN) - error_multiple_recovery_targets(); - - if (newval && strcmp(newval, "") != 0) - { - recoveryTarget = RECOVERY_TARGET_LSN; - recoveryTargetLSN = *((XLogRecPtr *) extra); - } - else - recoveryTarget = RECOVERY_TARGET_UNSET; -} - -static bool -check_primary_slot_name(char **newval, void **extra, GucSource source) -{ - if (*newval && strcmp(*newval, "") != 0 && - !ReplicationSlotValidateName(*newval, WARNING)) - return false; - - return true; -} - -static bool -check_default_with_oids(bool *newval, void **extra, GucSource source) -{ - if (*newval) - { - /* check the GUC's definition for an explanation */ - GUC_check_errcode(ERRCODE_FEATURE_NOT_SUPPORTED); - GUC_check_errmsg("tables declared WITH OIDS are not supported"); - - return false; - } - - return true; -} diff --git a/src/backend/utils/misc/guc_funcs.c b/src/backend/utils/misc/guc_funcs.c new file mode 100644 index 00000000000..3d2df18659b --- /dev/null +++ b/src/backend/utils/misc/guc_funcs.c @@ -0,0 +1,1047 @@ +/*-------------------------------------------------------------------- + * + * guc_funcs.c + * + * SQL commands and SQL-accessible functions related to GUC variables. + * + * + * Copyright (c) 2000-2022, PostgreSQL Global Development Group + * Written by Peter Eisentraut <peter_e@gmx.net>. + * + * IDENTIFICATION + * src/backend/utils/misc/guc_funcs.c + * + *-------------------------------------------------------------------- + */ +#include "postgres.h" + +#include <sys/stat.h> +#include <unistd.h> + +#include "access/xact.h" +#include "catalog/objectaccess.h" +#include "catalog/pg_authid.h" +#include "catalog/pg_parameter_acl.h" +#include "funcapi.h" +#include "guc_internal.h" +#include "parser/parse_type.h" +#include "utils/acl.h" +#include "utils/backend_status.h" +#include "utils/builtins.h" +#include "utils/guc_tables.h" +#include "utils/snapmgr.h" + +static char *flatten_set_variable_args(const char *name, List *args); +static void ShowGUCConfigOption(const char *name, DestReceiver *dest); +static void ShowAllGUCConfig(DestReceiver *dest); + + +/* + * SET command + */ +void +ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel) +{ + GucAction action = stmt->is_local ? GUC_ACTION_LOCAL : GUC_ACTION_SET; + + /* + * Workers synchronize these parameters at the start of the parallel + * operation; then, we block SET during the operation. + */ + if (IsInParallelMode()) + ereport(ERROR, + (errcode(ERRCODE_INVALID_TRANSACTION_STATE), + errmsg("cannot set parameters during a parallel operation"))); + + switch (stmt->kind) + { + case VAR_SET_VALUE: + case VAR_SET_CURRENT: + if (stmt->is_local) + WarnNoTransactionBlock(isTopLevel, "SET LOCAL"); + (void) set_config_option(stmt->name, + ExtractSetVariableArgs(stmt), + (superuser() ? PGC_SUSET : PGC_USERSET), + PGC_S_SESSION, + action, true, 0, false); + break; + case VAR_SET_MULTI: + + /* + * Special-case SQL syntaxes. The TRANSACTION and SESSION + * CHARACTERISTICS cases effectively set more than one variable + * per statement. TRANSACTION SNAPSHOT only takes one argument, + * but we put it here anyway since it's a special case and not + * related to any GUC variable. + */ + if (strcmp(stmt->name, "TRANSACTION") == 0) + { + ListCell *head; + + WarnNoTransactionBlock(isTopLevel, "SET TRANSACTION"); + + foreach(head, stmt->args) + { + DefElem *item = (DefElem *) lfirst(head); + + if (strcmp(item->defname, "transaction_isolation") == 0) + SetPGVariable("transaction_isolation", + list_make1(item->arg), stmt->is_local); + else if (strcmp(item->defname, "transaction_read_only") == 0) + SetPGVariable("transaction_read_only", + list_make1(item->arg), stmt->is_local); + else if (strcmp(item->defname, "transaction_deferrable") == 0) + SetPGVariable("transaction_deferrable", + list_make1(item->arg), stmt->is_local); + else + elog(ERROR, "unexpected SET TRANSACTION element: %s", + item->defname); + } + } + else if (strcmp(stmt->name, "SESSION CHARACTERISTICS") == 0) + { + ListCell *head; + + foreach(head, stmt->args) + { + DefElem *item = (DefElem *) lfirst(head); + + if (strcmp(item->defname, "transaction_isolation") == 0) + SetPGVariable("default_transaction_isolation", + list_make1(item->arg), stmt->is_local); + else if (strcmp(item->defname, "transaction_read_only") == 0) + SetPGVariable("default_transaction_read_only", + list_make1(item->arg), stmt->is_local); + else if (strcmp(item->defname, "transaction_deferrable") == 0) + SetPGVariable("default_transaction_deferrable", + list_make1(item->arg), stmt->is_local); + else + elog(ERROR, "unexpected SET SESSION element: %s", + item->defname); + } + } + else if (strcmp(stmt->name, "TRANSACTION SNAPSHOT") == 0) + { + A_Const *con = linitial_node(A_Const, stmt->args); + + if (stmt->is_local) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("SET LOCAL TRANSACTION SNAPSHOT is not implemented"))); + + WarnNoTransactionBlock(isTopLevel, "SET TRANSACTION"); + ImportSnapshot(strVal(&con->val)); + } + else + elog(ERROR, "unexpected SET MULTI element: %s", + stmt->name); + break; + case VAR_SET_DEFAULT: + if (stmt->is_local) + WarnNoTransactionBlock(isTopLevel, "SET LOCAL"); + /* fall through */ + case VAR_RESET: + if (strcmp(stmt->name, "transaction_isolation") == 0) + WarnNoTransactionBlock(isTopLevel, "RESET TRANSACTION"); + + (void) set_config_option(stmt->name, + NULL, + (superuser() ? PGC_SUSET : PGC_USERSET), + PGC_S_SESSION, + action, true, 0, false); + break; + case VAR_RESET_ALL: + ResetAllOptions(); + break; + } + + /* Invoke the post-alter hook for setting this GUC variable, by name. */ + InvokeObjectPostAlterHookArgStr(ParameterAclRelationId, stmt->name, + ACL_SET, stmt->kind, false); +} + +/* + * Get the value to assign for a VariableSetStmt, or NULL if it's RESET. + * The result is palloc'd. + * + * This is exported for use by actions such as ALTER ROLE SET. + */ +char * +ExtractSetVariableArgs(VariableSetStmt *stmt) +{ + switch (stmt->kind) + { + case VAR_SET_VALUE: + return flatten_set_variable_args(stmt->name, stmt->args); + case VAR_SET_CURRENT: + return GetConfigOptionByName(stmt->name, NULL, false); + default: + return NULL; + } +} + +/* + * flatten_set_variable_args + * Given a parsenode List as emitted by the grammar for SET, + * convert to the flat string representation used by GUC. + * + * We need to be told the name of the variable the args are for, because + * the flattening rules vary (ugh). + * + * The result is NULL if args is NIL (i.e., SET ... TO DEFAULT), otherwise + * a palloc'd string. + */ +static char * +flatten_set_variable_args(const char *name, List *args) +{ + struct config_generic *record; + int flags; + StringInfoData buf; + ListCell *l; + + /* Fast path if just DEFAULT */ + if (args == NIL) + return NULL; + + /* + * Get flags for the variable; if it's not known, use default flags. + * (Caller might throw error later, but not our business to do so here.) + */ + record = find_option(name, false, true, WARNING); + if (record) + flags = record->flags; + else + flags = 0; + + /* Complain if list input and non-list variable */ + if ((flags & GUC_LIST_INPUT) == 0 && + list_length(args) != 1) + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("SET %s takes only one argument", name))); + + initStringInfo(&buf); + + /* + * Each list member may be a plain A_Const node, or an A_Const within a + * TypeCast; the latter case is supported only for ConstInterval arguments + * (for SET TIME ZONE). + */ + foreach(l, args) + { + Node *arg = (Node *) lfirst(l); + char *val; + TypeName *typeName = NULL; + A_Const *con; + + if (l != list_head(args)) + appendStringInfoString(&buf, ", "); + + if (IsA(arg, TypeCast)) + { + TypeCast *tc = (TypeCast *) arg; + + arg = tc->arg; + typeName = tc->typeName; + } + + if (!IsA(arg, A_Const)) + elog(ERROR, "unrecognized node type: %d", (int) nodeTag(arg)); + con = (A_Const *) arg; + + switch (nodeTag(&con->val)) + { + case T_Integer: + appendStringInfo(&buf, "%d", intVal(&con->val)); + break; + case T_Float: + /* represented as a string, so just copy it */ + appendStringInfoString(&buf, castNode(Float, &con->val)->fval); + break; + case T_String: + val = strVal(&con->val); + if (typeName != NULL) + { + /* + * Must be a ConstInterval argument for TIME ZONE. Coerce + * to interval and back to normalize the value and account + * for any typmod. + */ + Oid typoid; + int32 typmod; + Datum interval; + char *intervalout; + + typenameTypeIdAndMod(NULL, typeName, &typoid, &typmod); + Assert(typoid == INTERVALOID); + + interval = + DirectFunctionCall3(interval_in, + CStringGetDatum(val), + ObjectIdGetDatum(InvalidOid), + Int32GetDatum(typmod)); + + intervalout = + DatumGetCString(DirectFunctionCall1(interval_out, + interval)); + appendStringInfo(&buf, "INTERVAL '%s'", intervalout); + } + else + { + /* + * Plain string literal or identifier. For quote mode, + * quote it if it's not a vanilla identifier. + */ + if (flags & GUC_LIST_QUOTE) + appendStringInfoString(&buf, quote_identifier(val)); + else + appendStringInfoString(&buf, val); + } + break; + default: + elog(ERROR, "unrecognized node type: %d", + (int) nodeTag(&con->val)); + break; + } + } + + return buf.data; +} + +/* + * SetPGVariable - SET command exported as an easily-C-callable function. + * + * This provides access to SET TO value, as well as SET TO DEFAULT (expressed + * by passing args == NIL), but not SET FROM CURRENT functionality. + */ +void +SetPGVariable(const char *name, List *args, bool is_local) +{ + char *argstring = flatten_set_variable_args(name, args); + + /* Note SET DEFAULT (argstring == NULL) is equivalent to RESET */ + (void) set_config_option(name, + argstring, + (superuser() ? PGC_SUSET : PGC_USERSET), + PGC_S_SESSION, + is_local ? GUC_ACTION_LOCAL : GUC_ACTION_SET, + true, 0, false); +} + +/* + * SET command wrapped as a SQL callable function. + */ +Datum +set_config_by_name(PG_FUNCTION_ARGS) +{ + char *name; + char *value; + char *new_value; + bool is_local; + + if (PG_ARGISNULL(0)) + ereport(ERROR, + (errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED), + errmsg("SET requires parameter name"))); + + /* Get the GUC variable name */ + name = TextDatumGetCString(PG_GETARG_DATUM(0)); + + /* Get the desired value or set to NULL for a reset request */ + if (PG_ARGISNULL(1)) + value = NULL; + else + value = TextDatumGetCString(PG_GETARG_DATUM(1)); + + /* + * Get the desired state of is_local. Default to false if provided value + * is NULL + */ + if (PG_ARGISNULL(2)) + is_local = false; + else + is_local = PG_GETARG_BOOL(2); + + /* Note SET DEFAULT (argstring == NULL) is equivalent to RESET */ + (void) set_config_option(name, + value, + (superuser() ? PGC_SUSET : PGC_USERSET), + PGC_S_SESSION, + is_local ? GUC_ACTION_LOCAL : GUC_ACTION_SET, + true, 0, false); + + /* get the new current value */ + new_value = GetConfigOptionByName(name, NULL, false); + + /* Convert return string to text */ + PG_RETURN_TEXT_P(cstring_to_text(new_value)); +} + + +/* + * SHOW command + */ +void +GetPGVariable(const char *name, DestReceiver *dest) +{ + if (guc_name_compare(name, "all") == 0) + ShowAllGUCConfig(dest); + else + ShowGUCConfigOption(name, dest); +} + +/* + * Get a tuple descriptor for SHOW's result + */ +TupleDesc +GetPGVariableResultDesc(const char *name) +{ + TupleDesc tupdesc; + + if (guc_name_compare(name, "all") == 0) + { + /* need a tuple descriptor representing three TEXT columns */ + tupdesc = CreateTemplateTupleDesc(3); + TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 2, "setting", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 3, "description", + TEXTOID, -1, 0); + } + else + { + const char *varname; + + /* Get the canonical spelling of name */ + (void) GetConfigOptionByName(name, &varname, false); + + /* need a tuple descriptor representing a single TEXT column */ + tupdesc = CreateTemplateTupleDesc(1); + TupleDescInitEntry(tupdesc, (AttrNumber) 1, varname, + TEXTOID, -1, 0); + } + return tupdesc; +} + +/* + * SHOW one variable + */ +static void +ShowGUCConfigOption(const char *name, DestReceiver *dest) +{ + TupOutputState *tstate; + TupleDesc tupdesc; + const char *varname; + char *value; + + /* Get the value and canonical spelling of name */ + value = GetConfigOptionByName(name, &varname, false); + + /* need a tuple descriptor representing a single TEXT column */ + tupdesc = CreateTemplateTupleDesc(1); + TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 1, varname, + TEXTOID, -1, 0); + + /* prepare for projection of tuples */ + tstate = begin_tup_output_tupdesc(dest, tupdesc, &TTSOpsVirtual); + + /* Send it */ + do_text_output_oneline(tstate, value); + + end_tup_output(tstate); +} + +/* + * SHOW ALL command + */ +static void +ShowAllGUCConfig(DestReceiver *dest) +{ + int i; + TupOutputState *tstate; + TupleDesc tupdesc; + Datum values[3]; + bool isnull[3] = {false, false, false}; + struct config_generic **guc_variables = get_guc_variables(); + int num_guc_variables = GetNumConfigOptions(); + + /* need a tuple descriptor representing three TEXT columns */ + tupdesc = CreateTemplateTupleDesc(3); + TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 1, "name", + TEXTOID, -1, 0); + TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 2, "setting", + TEXTOID, -1, 0); + TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 3, "description", + TEXTOID, -1, 0); + + /* prepare for projection of tuples */ + tstate = begin_tup_output_tupdesc(dest, tupdesc, &TTSOpsVirtual); + + for (i = 0; i < num_guc_variables; i++) + { + struct config_generic *conf = guc_variables[i]; + char *setting; + + if ((conf->flags & GUC_NO_SHOW_ALL) || + ((conf->flags & GUC_SUPERUSER_ONLY) && + !has_privs_of_role(GetUserId(), ROLE_PG_READ_ALL_SETTINGS))) + continue; + + /* assign to the values array */ + values[0] = PointerGetDatum(cstring_to_text(conf->name)); + + setting = ShowGUCOption(conf, true); + if (setting) + { + values[1] = PointerGetDatum(cstring_to_text(setting)); + isnull[1] = false; + } + else + { + values[1] = PointerGetDatum(NULL); + isnull[1] = true; + } + + if (conf->short_desc) + { + values[2] = PointerGetDatum(cstring_to_text(conf->short_desc)); + isnull[2] = false; + } + else + { + values[2] = PointerGetDatum(NULL); + isnull[2] = true; + } + + /* send it to dest */ + do_tup_output(tstate, values, isnull); + + /* clean up */ + pfree(DatumGetPointer(values[0])); + if (setting) + { + pfree(setting); + pfree(DatumGetPointer(values[1])); + } + if (conf->short_desc) + pfree(DatumGetPointer(values[2])); + } + + end_tup_output(tstate); +} + +/* + * Return some of the flags associated to the specified GUC in the shape of + * a text array, and NULL if it does not exist. An empty array is returned + * if the GUC exists without any meaningful flags to show. + */ +Datum +pg_settings_get_flags(PG_FUNCTION_ARGS) +{ +#define MAX_GUC_FLAGS 5 + char *varname = TextDatumGetCString(PG_GETARG_DATUM(0)); + struct config_generic *record; + int cnt = 0; + Datum flags[MAX_GUC_FLAGS]; + ArrayType *a; + + record = find_option(varname, false, true, ERROR); + + /* return NULL if no such variable */ + if (record == NULL) + PG_RETURN_NULL(); + + if (record->flags & GUC_EXPLAIN) + flags[cnt++] = CStringGetTextDatum("EXPLAIN"); + if (record->flags & GUC_NO_RESET_ALL) + flags[cnt++] = CStringGetTextDatum("NO_RESET_ALL"); + if (record->flags & GUC_NO_SHOW_ALL) + flags[cnt++] = CStringGetTextDatum("NO_SHOW_ALL"); + if (record->flags & GUC_NOT_IN_SAMPLE) + flags[cnt++] = CStringGetTextDatum("NOT_IN_SAMPLE"); + if (record->flags & GUC_RUNTIME_COMPUTED) + flags[cnt++] = CStringGetTextDatum("RUNTIME_COMPUTED"); + + Assert(cnt <= MAX_GUC_FLAGS); + + /* Returns the record as Datum */ + a = construct_array_builtin(flags, cnt, TEXTOID); + PG_RETURN_ARRAYTYPE_P(a); +} + +/* + * Return GUC variable value by variable number; optionally return canonical + * form of name. Return value is palloc'd. + */ +static void +GetConfigOptionByNum(int varnum, const char **values, bool *noshow) +{ + char buffer[256]; + struct config_generic *conf; + struct config_generic **guc_variables = get_guc_variables(); + + /* check requested variable number valid */ + Assert((varnum >= 0) && (varnum < GetNumConfigOptions())); + + conf = guc_variables[varnum]; + + if (noshow) + { + if ((conf->flags & GUC_NO_SHOW_ALL) || + ((conf->flags & GUC_SUPERUSER_ONLY) && + !has_privs_of_role(GetUserId(), ROLE_PG_READ_ALL_SETTINGS))) + *noshow = true; + else + *noshow = false; + } + + /* first get the generic attributes */ + + /* name */ + values[0] = conf->name; + + /* setting: use ShowGUCOption in order to avoid duplicating the logic */ + values[1] = ShowGUCOption(conf, false); + + /* unit, if any (NULL is fine) */ + values[2] = get_config_unit_name(conf->flags); + + /* group */ + values[3] = _(config_group_names[conf->group]); + + /* short_desc */ + values[4] = conf->short_desc != NULL ? _(conf->short_desc) : NULL; + + /* extra_desc */ + values[5] = conf->long_desc != NULL ? _(conf->long_desc) : NULL; + + /* context */ + values[6] = GucContext_Names[conf->context]; + + /* vartype */ + values[7] = config_type_names[conf->vartype]; + + /* source */ + values[8] = GucSource_Names[conf->source]; + + /* now get the type specific attributes */ + switch (conf->vartype) + { + case PGC_BOOL: + { + struct config_bool *lconf = (struct config_bool *) conf; + + /* min_val */ + values[9] = NULL; + + /* max_val */ + values[10] = NULL; + + /* enumvals */ + values[11] = NULL; + + /* boot_val */ + values[12] = pstrdup(lconf->boot_val ? "on" : "off"); + + /* reset_val */ + values[13] = pstrdup(lconf->reset_val ? "on" : "off"); + } + break; + + case PGC_INT: + { + struct config_int *lconf = (struct config_int *) conf; + + /* min_val */ + snprintf(buffer, sizeof(buffer), "%d", lconf->min); + values[9] = pstrdup(buffer); + + /* max_val */ + snprintf(buffer, sizeof(buffer), "%d", lconf->max); + values[10] = pstrdup(buffer); + + /* enumvals */ + values[11] = NULL; + + /* boot_val */ + snprintf(buffer, sizeof(buffer), "%d", lconf->boot_val); + values[12] = pstrdup(buffer); + + /* reset_val */ + snprintf(buffer, sizeof(buffer), "%d", lconf->reset_val); + values[13] = pstrdup(buffer); + } + break; + + case PGC_REAL: + { + struct config_real *lconf = (struct config_real *) conf; + + /* min_val */ + snprintf(buffer, sizeof(buffer), "%g", lconf->min); + values[9] = pstrdup(buffer); + + /* max_val */ + snprintf(buffer, sizeof(buffer), "%g", lconf->max); + values[10] = pstrdup(buffer); + + /* enumvals */ + values[11] = NULL; + + /* boot_val */ + snprintf(buffer, sizeof(buffer), "%g", lconf->boot_val); + values[12] = pstrdup(buffer); + + /* reset_val */ + snprintf(buffer, sizeof(buffer), "%g", lconf->reset_val); + values[13] = pstrdup(buffer); + } + break; + + case PGC_STRING: + { + struct config_string *lconf = (struct config_string *) conf; + + /* min_val */ + values[9] = NULL; + + /* max_val */ + values[10] = NULL; + + /* enumvals */ + values[11] = NULL; + + /* boot_val */ + if (lconf->boot_val == NULL) + values[12] = NULL; + else + values[12] = pstrdup(lconf->boot_val); + + /* reset_val */ + if (lconf->reset_val == NULL) + values[13] = NULL; + else + values[13] = pstrdup(lconf->reset_val); + } + break; + + case PGC_ENUM: + { + struct config_enum *lconf = (struct config_enum *) conf; + + /* min_val */ + values[9] = NULL; + + /* max_val */ + values[10] = NULL; + + /* enumvals */ + + /* + * NOTE! enumvals with double quotes in them are not + * supported! + */ + values[11] = config_enum_get_options((struct config_enum *) conf, + "{\"", "\"}", "\",\""); + + /* boot_val */ + values[12] = pstrdup(config_enum_lookup_by_value(lconf, + lconf->boot_val)); + + /* reset_val */ + values[13] = pstrdup(config_enum_lookup_by_value(lconf, + lconf->reset_val)); + } + break; + + default: + { + /* + * should never get here, but in case we do, set 'em to NULL + */ + + /* min_val */ + values[9] = NULL; + + /* max_val */ + values[10] = NULL; + + /* enumvals */ + values[11] = NULL; + + /* boot_val */ + values[12] = NULL; + + /* reset_val */ + values[13] = NULL; + } + break; + } + + /* + * If the setting came from a config file, set the source location. For + * security reasons, we don't show source file/line number for + * insufficiently-privileged users. + */ + if (conf->source == PGC_S_FILE && + has_privs_of_role(GetUserId(), ROLE_PG_READ_ALL_SETTINGS)) + { + values[14] = conf->sourcefile; + snprintf(buffer, sizeof(buffer), "%d", conf->sourceline); + values[15] = pstrdup(buffer); + } + else + { + values[14] = NULL; + values[15] = NULL; + } + + values[16] = (conf->status & GUC_PENDING_RESTART) ? "t" : "f"; +} + +/* + * show_config_by_name - equiv to SHOW X command but implemented as + * a function. + */ +Datum +show_config_by_name(PG_FUNCTION_ARGS) +{ + char *varname = TextDatumGetCString(PG_GETARG_DATUM(0)); + char *varval; + + /* Get the value */ + varval = GetConfigOptionByName(varname, NULL, false); + + /* Convert to text */ + PG_RETURN_TEXT_P(cstring_to_text(varval)); +} + +/* + * show_config_by_name_missing_ok - equiv to SHOW X command but implemented as + * a function. If X does not exist, suppress the error and just return NULL + * if missing_ok is true. + */ +Datum +show_config_by_name_missing_ok(PG_FUNCTION_ARGS) +{ + char *varname = TextDatumGetCString(PG_GETARG_DATUM(0)); + bool missing_ok = PG_GETARG_BOOL(1); + char *varval; + + /* Get the value */ + varval = GetConfigOptionByName(varname, NULL, missing_ok); + + /* return NULL if no such variable */ + if (varval == NULL) + PG_RETURN_NULL(); + + /* Convert to text */ + PG_RETURN_TEXT_P(cstring_to_text(varval)); +} + +/* + * show_all_settings - equiv to SHOW ALL command but implemented as + * a Table Function. + */ +#define NUM_PG_SETTINGS_ATTS 17 + +Datum +show_all_settings(PG_FUNCTION_ARGS) +{ + FuncCallContext *funcctx; + TupleDesc tupdesc; + int call_cntr; + int max_calls; + AttInMetadata *attinmeta; + MemoryContext oldcontext; + + /* stuff done only on the first call of the function */ + if (SRF_IS_FIRSTCALL()) + { + /* create a function context for cross-call persistence */ + funcctx = SRF_FIRSTCALL_INIT(); + + /* + * switch to memory context appropriate for multiple function calls + */ + oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx); + + /* + * need a tuple descriptor representing NUM_PG_SETTINGS_ATTS columns + * of the appropriate types + */ + tupdesc = CreateTemplateTupleDesc(NUM_PG_SETTINGS_ATTS); + TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 2, "setting", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 3, "unit", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 4, "category", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 5, "short_desc", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 6, "extra_desc", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 7, "context", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 8, "vartype", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 9, "source", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 10, "min_val", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 11, "max_val", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 12, "enumvals", + TEXTARRAYOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 13, "boot_val", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 14, "reset_val", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 15, "sourcefile", + TEXTOID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 16, "sourceline", + INT4OID, -1, 0); + TupleDescInitEntry(tupdesc, (AttrNumber) 17, "pending_restart", + BOOLOID, -1, 0); + + /* + * Generate attribute metadata needed later to produce tuples from raw + * C strings + */ + attinmeta = TupleDescGetAttInMetadata(tupdesc); + funcctx->attinmeta = attinmeta; + + /* total number of tuples to be returned */ + funcctx->max_calls = GetNumConfigOptions(); + + MemoryContextSwitchTo(oldcontext); + } + + /* stuff done on every call of the function */ + funcctx = SRF_PERCALL_SETUP(); + + call_cntr = funcctx->call_cntr; + max_calls = funcctx->max_calls; + attinmeta = funcctx->attinmeta; + + if (call_cntr < max_calls) /* do when there is more left to send */ + { + char *values[NUM_PG_SETTINGS_ATTS]; + bool noshow; + HeapTuple tuple; + Datum result; + + /* + * Get the next visible GUC variable name and value + */ + do + { + GetConfigOptionByNum(call_cntr, (const char **) values, &noshow); + if (noshow) + { + /* bump the counter and get the next config setting */ + call_cntr = ++funcctx->call_cntr; + + /* make sure we haven't gone too far now */ + if (call_cntr >= max_calls) + SRF_RETURN_DONE(funcctx); + } + } while (noshow); + + /* build a tuple */ + tuple = BuildTupleFromCStrings(attinmeta, values); + + /* make the tuple into a datum */ + result = HeapTupleGetDatum(tuple); + + SRF_RETURN_NEXT(funcctx, result); + } + else + { + /* do when there is no more left */ + SRF_RETURN_DONE(funcctx); + } +} + +/* + * show_all_file_settings + * + * Returns a table of all parameter settings in all configuration files + * which includes the config file pathname, the line number, a sequence number + * indicating the order in which the settings were encountered, the parameter + * name and value, a bool showing if the value could be applied, and possibly + * an associated error message. (For problems such as syntax errors, the + * parameter name/value might be NULL.) + * + * Note: no filtering is done here, instead we depend on the GRANT system + * to prevent unprivileged users from accessing this function or the view + * built on top of it. + */ +Datum +show_all_file_settings(PG_FUNCTION_ARGS) +{ +#define NUM_PG_FILE_SETTINGS_ATTS 7 + ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo; + ConfigVariable *conf; + int seqno; + + /* Scan the config files using current context as workspace */ + conf = ProcessConfigFileInternal(PGC_SIGHUP, false, DEBUG3); + + /* Build a tuplestore to return our results in */ + SetSingleFuncCall(fcinfo, 0); + + /* Process the results and create a tuplestore */ + for (seqno = 1; conf != NULL; conf = conf->next, seqno++) + { + Datum values[NUM_PG_FILE_SETTINGS_ATTS]; + bool nulls[NUM_PG_FILE_SETTINGS_ATTS]; + + memset(values, 0, sizeof(values)); + memset(nulls, 0, sizeof(nulls)); + + /* sourcefile */ + if (conf->filename) + values[0] = PointerGetDatum(cstring_to_text(conf->filename)); + else + nulls[0] = true; + + /* sourceline (not meaningful if no sourcefile) */ + if (conf->filename) + values[1] = Int32GetDatum(conf->sourceline); + else + nulls[1] = true; + + /* seqno */ + values[2] = Int32GetDatum(seqno); + + /* name */ + if (conf->name) + values[3] = PointerGetDatum(cstring_to_text(conf->name)); + else + nulls[3] = true; + + /* setting */ + if (conf->value) + values[4] = PointerGetDatum(cstring_to_text(conf->value)); + else + nulls[4] = true; + + /* applied */ + values[5] = BoolGetDatum(conf->applied); + + /* error */ + if (conf->errmsg) + values[6] = PointerGetDatum(cstring_to_text(conf->errmsg)); + else + nulls[6] = true; + + /* shove row into tuplestore */ + tuplestore_putvalues(rsinfo->setResult, rsinfo->setDesc, values, nulls); + } + + return (Datum) 0; +} diff --git a/src/backend/utils/misc/guc_tables.c b/src/backend/utils/misc/guc_tables.c new file mode 100644 index 00000000000..87e625aa7a2 --- /dev/null +++ b/src/backend/utils/misc/guc_tables.c @@ -0,0 +1,4875 @@ +/*-------------------------------------------------------------------- + * + * guc_tables.c + * + * Static tables for the Grand Unified Configuration scheme. + * + * Many of these tables are const. However, ConfigureNamesBool[] + * and so on are not, because the structs in those arrays are actually + * the live per-variable state data that guc.c manipulates. While many of + * their fields are intended to be constant, some fields change at runtime. + * + * + * Copyright (c) 2000-2022, PostgreSQL Global Development Group + * Written by Peter Eisentraut <peter_e@gmx.net>. + * + * IDENTIFICATION + * src/backend/utils/misc/guc_tables.c + * + *-------------------------------------------------------------------- + */ +#include "postgres.h" + +#include <float.h> +#include <limits.h> +#ifdef HAVE_SYSLOG +#include <syslog.h> +#endif + +#include "access/commit_ts.h" +#include "access/gin.h" +#include "access/toast_compression.h" +#include "access/twophase.h" +#include "access/xlog_internal.h" +#include "access/xlogprefetcher.h" +#include "access/xlogrecovery.h" +#include "catalog/namespace.h" +#include "catalog/storage.h" +#include "commands/async.h" +#include "commands/tablespace.h" +#include "commands/trigger.h" +#include "commands/user.h" +#include "commands/vacuum.h" +#include "jit/jit.h" +#include "libpq/auth.h" +#include "libpq/libpq.h" +#include "optimizer/cost.h" +#include "optimizer/geqo.h" +#include "optimizer/optimizer.h" +#include "optimizer/paths.h" +#include "optimizer/planmain.h" +#include "parser/parse_expr.h" +#include "parser/parser.h" +#include "pgstat.h" +#include "postmaster/autovacuum.h" +#include "postmaster/bgworker_internals.h" +#include "postmaster/bgwriter.h" +#include "postmaster/postmaster.h" +#include "postmaster/startup.h" +#include "postmaster/syslogger.h" +#include "postmaster/walwriter.h" +#include "replication/logicallauncher.h" +#include "replication/slot.h" +#include "replication/syncrep.h" +#include "storage/bufmgr.h" +#include "storage/large_object.h" +#include "storage/pg_shmem.h" +#include "storage/predicate.h" +#include "storage/standby.h" +#include "tcop/tcopprot.h" +#include "tsearch/ts_cache.h" +#include "utils/builtins.h" +#include "utils/bytea.h" +#include "utils/float.h" +#include "utils/guc_hooks.h" +#include "utils/guc_tables.h" +#include "utils/memutils.h" +#include "utils/pg_locale.h" +#include "utils/portal.h" +#include "utils/ps_status.h" +#include "utils/queryjumble.h" +#include "utils/inval.h" +#include "utils/xml.h" + +/* This value is normally passed in from the Makefile */ +#ifndef PG_KRB_SRVTAB +#define PG_KRB_SRVTAB "" +#endif + +/* XXX these should appear in other modules' header files */ +extern bool Log_disconnections; +extern int CommitDelay; +extern int CommitSiblings; +extern char *default_tablespace; +extern char *temp_tablespaces; +extern bool ignore_checksum_failure; +extern bool ignore_invalid_pages; +extern bool synchronize_seqscans; + +#ifdef TRACE_SYNCSCAN +extern bool trace_syncscan; +#endif +#ifdef DEBUG_BOUNDED_SORT +extern bool optimize_bounded_sort; +#endif + +/* + * Options for enum values defined in this module. + * + * NOTE! Option values may not contain double quotes! + */ + +static const struct config_enum_entry bytea_output_options[] = { + {"escape", BYTEA_OUTPUT_ESCAPE, false}, + {"hex", BYTEA_OUTPUT_HEX, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(bytea_output_options) == (BYTEA_OUTPUT_HEX + 2), + "array length mismatch"); + +/* + * We have different sets for client and server message level options because + * they sort slightly different (see "log" level), and because "fatal"/"panic" + * aren't sensible for client_min_messages. + */ +static const struct config_enum_entry client_message_level_options[] = { + {"debug5", DEBUG5, false}, + {"debug4", DEBUG4, false}, + {"debug3", DEBUG3, false}, + {"debug2", DEBUG2, false}, + {"debug1", DEBUG1, false}, + {"debug", DEBUG2, true}, + {"log", LOG, false}, + {"info", INFO, true}, + {"notice", NOTICE, false}, + {"warning", WARNING, false}, + {"error", ERROR, false}, + {NULL, 0, false} +}; + +static const struct config_enum_entry server_message_level_options[] = { + {"debug5", DEBUG5, false}, + {"debug4", DEBUG4, false}, + {"debug3", DEBUG3, false}, + {"debug2", DEBUG2, false}, + {"debug1", DEBUG1, false}, + {"debug", DEBUG2, true}, + {"info", INFO, false}, + {"notice", NOTICE, false}, + {"warning", WARNING, false}, + {"error", ERROR, false}, + {"log", LOG, false}, + {"fatal", FATAL, false}, + {"panic", PANIC, false}, + {NULL, 0, false} +}; + +static const struct config_enum_entry intervalstyle_options[] = { + {"postgres", INTSTYLE_POSTGRES, false}, + {"postgres_verbose", INTSTYLE_POSTGRES_VERBOSE, false}, + {"sql_standard", INTSTYLE_SQL_STANDARD, false}, + {"iso_8601", INTSTYLE_ISO_8601, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(intervalstyle_options) == (INTSTYLE_ISO_8601 + 2), + "array length mismatch"); + +static const struct config_enum_entry log_error_verbosity_options[] = { + {"terse", PGERROR_TERSE, false}, + {"default", PGERROR_DEFAULT, false}, + {"verbose", PGERROR_VERBOSE, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(log_error_verbosity_options) == (PGERROR_VERBOSE + 2), + "array length mismatch"); + +static const struct config_enum_entry log_statement_options[] = { + {"none", LOGSTMT_NONE, false}, + {"ddl", LOGSTMT_DDL, false}, + {"mod", LOGSTMT_MOD, false}, + {"all", LOGSTMT_ALL, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(log_statement_options) == (LOGSTMT_ALL + 2), + "array length mismatch"); + +static const struct config_enum_entry isolation_level_options[] = { + {"serializable", XACT_SERIALIZABLE, false}, + {"repeatable read", XACT_REPEATABLE_READ, false}, + {"read committed", XACT_READ_COMMITTED, false}, + {"read uncommitted", XACT_READ_UNCOMMITTED, false}, + {NULL, 0} +}; + +static const struct config_enum_entry session_replication_role_options[] = { + {"origin", SESSION_REPLICATION_ROLE_ORIGIN, false}, + {"replica", SESSION_REPLICATION_ROLE_REPLICA, false}, + {"local", SESSION_REPLICATION_ROLE_LOCAL, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(session_replication_role_options) == (SESSION_REPLICATION_ROLE_LOCAL + 2), + "array length mismatch"); + +static const struct config_enum_entry syslog_facility_options[] = { +#ifdef HAVE_SYSLOG + {"local0", LOG_LOCAL0, false}, + {"local1", LOG_LOCAL1, false}, + {"local2", LOG_LOCAL2, false}, + {"local3", LOG_LOCAL3, false}, + {"local4", LOG_LOCAL4, false}, + {"local5", LOG_LOCAL5, false}, + {"local6", LOG_LOCAL6, false}, + {"local7", LOG_LOCAL7, false}, +#else + {"none", 0, false}, +#endif + {NULL, 0} +}; + +static const struct config_enum_entry track_function_options[] = { + {"none", TRACK_FUNC_OFF, false}, + {"pl", TRACK_FUNC_PL, false}, + {"all", TRACK_FUNC_ALL, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(track_function_options) == (TRACK_FUNC_ALL + 2), + "array length mismatch"); + +static const struct config_enum_entry stats_fetch_consistency[] = { + {"none", PGSTAT_FETCH_CONSISTENCY_NONE, false}, + {"cache", PGSTAT_FETCH_CONSISTENCY_CACHE, false}, + {"snapshot", PGSTAT_FETCH_CONSISTENCY_SNAPSHOT, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(stats_fetch_consistency) == (PGSTAT_FETCH_CONSISTENCY_SNAPSHOT + 2), + "array length mismatch"); + +static const struct config_enum_entry xmlbinary_options[] = { + {"base64", XMLBINARY_BASE64, false}, + {"hex", XMLBINARY_HEX, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(xmlbinary_options) == (XMLBINARY_HEX + 2), + "array length mismatch"); + +static const struct config_enum_entry xmloption_options[] = { + {"content", XMLOPTION_CONTENT, false}, + {"document", XMLOPTION_DOCUMENT, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(xmloption_options) == (XMLOPTION_CONTENT + 2), + "array length mismatch"); + +/* + * Although only "on", "off", and "safe_encoding" are documented, we + * accept all the likely variants of "on" and "off". + */ +static const struct config_enum_entry backslash_quote_options[] = { + {"safe_encoding", BACKSLASH_QUOTE_SAFE_ENCODING, false}, + {"on", BACKSLASH_QUOTE_ON, false}, + {"off", BACKSLASH_QUOTE_OFF, false}, + {"true", BACKSLASH_QUOTE_ON, true}, + {"false", BACKSLASH_QUOTE_OFF, true}, + {"yes", BACKSLASH_QUOTE_ON, true}, + {"no", BACKSLASH_QUOTE_OFF, true}, + {"1", BACKSLASH_QUOTE_ON, true}, + {"0", BACKSLASH_QUOTE_OFF, true}, + {NULL, 0, false} +}; + +/* + * Although only "on", "off", and "auto" are documented, we accept + * all the likely variants of "on" and "off". + */ +static const struct config_enum_entry compute_query_id_options[] = { + {"auto", COMPUTE_QUERY_ID_AUTO, false}, + {"regress", COMPUTE_QUERY_ID_REGRESS, false}, + {"on", COMPUTE_QUERY_ID_ON, false}, + {"off", COMPUTE_QUERY_ID_OFF, false}, + {"true", COMPUTE_QUERY_ID_ON, true}, + {"false", COMPUTE_QUERY_ID_OFF, true}, + {"yes", COMPUTE_QUERY_ID_ON, true}, + {"no", COMPUTE_QUERY_ID_OFF, true}, + {"1", COMPUTE_QUERY_ID_ON, true}, + {"0", COMPUTE_QUERY_ID_OFF, true}, + {NULL, 0, false} +}; + +/* + * Although only "on", "off", and "partition" are documented, we + * accept all the likely variants of "on" and "off". + */ +static const struct config_enum_entry constraint_exclusion_options[] = { + {"partition", CONSTRAINT_EXCLUSION_PARTITION, false}, + {"on", CONSTRAINT_EXCLUSION_ON, false}, + {"off", CONSTRAINT_EXCLUSION_OFF, false}, + {"true", CONSTRAINT_EXCLUSION_ON, true}, + {"false", CONSTRAINT_EXCLUSION_OFF, true}, + {"yes", CONSTRAINT_EXCLUSION_ON, true}, + {"no", CONSTRAINT_EXCLUSION_OFF, true}, + {"1", CONSTRAINT_EXCLUSION_ON, true}, + {"0", CONSTRAINT_EXCLUSION_OFF, true}, + {NULL, 0, false} +}; + +/* + * Although only "on", "off", "remote_apply", "remote_write", and "local" are + * documented, we accept all the likely variants of "on" and "off". + */ +static const struct config_enum_entry synchronous_commit_options[] = { + {"local", SYNCHRONOUS_COMMIT_LOCAL_FLUSH, false}, + {"remote_write", SYNCHRONOUS_COMMIT_REMOTE_WRITE, false}, + {"remote_apply", SYNCHRONOUS_COMMIT_REMOTE_APPLY, false}, + {"on", SYNCHRONOUS_COMMIT_ON, false}, + {"off", SYNCHRONOUS_COMMIT_OFF, false}, + {"true", SYNCHRONOUS_COMMIT_ON, true}, + {"false", SYNCHRONOUS_COMMIT_OFF, true}, + {"yes", SYNCHRONOUS_COMMIT_ON, true}, + {"no", SYNCHRONOUS_COMMIT_OFF, true}, + {"1", SYNCHRONOUS_COMMIT_ON, true}, + {"0", SYNCHRONOUS_COMMIT_OFF, true}, + {NULL, 0, false} +}; + +/* + * Although only "on", "off", "try" are documented, we accept all the likely + * variants of "on" and "off". + */ +static const struct config_enum_entry huge_pages_options[] = { + {"off", HUGE_PAGES_OFF, false}, + {"on", HUGE_PAGES_ON, false}, + {"try", HUGE_PAGES_TRY, false}, + {"true", HUGE_PAGES_ON, true}, + {"false", HUGE_PAGES_OFF, true}, + {"yes", HUGE_PAGES_ON, true}, + {"no", HUGE_PAGES_OFF, true}, + {"1", HUGE_PAGES_ON, true}, + {"0", HUGE_PAGES_OFF, true}, + {NULL, 0, false} +}; + +static const struct config_enum_entry recovery_prefetch_options[] = { + {"off", RECOVERY_PREFETCH_OFF, false}, + {"on", RECOVERY_PREFETCH_ON, false}, + {"try", RECOVERY_PREFETCH_TRY, false}, + {"true", RECOVERY_PREFETCH_ON, true}, + {"false", RECOVERY_PREFETCH_OFF, true}, + {"yes", RECOVERY_PREFETCH_ON, true}, + {"no", RECOVERY_PREFETCH_OFF, true}, + {"1", RECOVERY_PREFETCH_ON, true}, + {"0", RECOVERY_PREFETCH_OFF, true}, + {NULL, 0, false} +}; + +static const struct config_enum_entry force_parallel_mode_options[] = { + {"off", FORCE_PARALLEL_OFF, false}, + {"on", FORCE_PARALLEL_ON, false}, + {"regress", FORCE_PARALLEL_REGRESS, false}, + {"true", FORCE_PARALLEL_ON, true}, + {"false", FORCE_PARALLEL_OFF, true}, + {"yes", FORCE_PARALLEL_ON, true}, + {"no", FORCE_PARALLEL_OFF, true}, + {"1", FORCE_PARALLEL_ON, true}, + {"0", FORCE_PARALLEL_OFF, true}, + {NULL, 0, false} +}; + +static const struct config_enum_entry plan_cache_mode_options[] = { + {"auto", PLAN_CACHE_MODE_AUTO, false}, + {"force_generic_plan", PLAN_CACHE_MODE_FORCE_GENERIC_PLAN, false}, + {"force_custom_plan", PLAN_CACHE_MODE_FORCE_CUSTOM_PLAN, false}, + {NULL, 0, false} +}; + +static const struct config_enum_entry password_encryption_options[] = { + {"md5", PASSWORD_TYPE_MD5, false}, + {"scram-sha-256", PASSWORD_TYPE_SCRAM_SHA_256, false}, + {NULL, 0, false} +}; + +static const struct config_enum_entry ssl_protocol_versions_info[] = { + {"", PG_TLS_ANY, false}, + {"TLSv1", PG_TLS1_VERSION, false}, + {"TLSv1.1", PG_TLS1_1_VERSION, false}, + {"TLSv1.2", PG_TLS1_2_VERSION, false}, + {"TLSv1.3", PG_TLS1_3_VERSION, false}, + {NULL, 0, false} +}; + +StaticAssertDecl(lengthof(ssl_protocol_versions_info) == (PG_TLS1_3_VERSION + 2), + "array length mismatch"); + +static const struct config_enum_entry recovery_init_sync_method_options[] = { + {"fsync", RECOVERY_INIT_SYNC_METHOD_FSYNC, false}, +#ifdef HAVE_SYNCFS + {"syncfs", RECOVERY_INIT_SYNC_METHOD_SYNCFS, false}, +#endif + {NULL, 0, false} +}; + +static const struct config_enum_entry shared_memory_options[] = { +#ifndef WIN32 + {"sysv", SHMEM_TYPE_SYSV, false}, +#endif +#ifndef EXEC_BACKEND + {"mmap", SHMEM_TYPE_MMAP, false}, +#endif +#ifdef WIN32 + {"windows", SHMEM_TYPE_WINDOWS, false}, +#endif + {NULL, 0, false} +}; + +static const struct config_enum_entry default_toast_compression_options[] = { + {"pglz", TOAST_PGLZ_COMPRESSION, false}, +#ifdef USE_LZ4 + {"lz4", TOAST_LZ4_COMPRESSION, false}, +#endif + {NULL, 0, false} +}; + +static const struct config_enum_entry wal_compression_options[] = { + {"pglz", WAL_COMPRESSION_PGLZ, false}, +#ifdef USE_LZ4 + {"lz4", WAL_COMPRESSION_LZ4, false}, +#endif +#ifdef USE_ZSTD + {"zstd", WAL_COMPRESSION_ZSTD, false}, +#endif + {"on", WAL_COMPRESSION_PGLZ, false}, + {"off", WAL_COMPRESSION_NONE, false}, + {"true", WAL_COMPRESSION_PGLZ, true}, + {"false", WAL_COMPRESSION_NONE, true}, + {"yes", WAL_COMPRESSION_PGLZ, true}, + {"no", WAL_COMPRESSION_NONE, true}, + {"1", WAL_COMPRESSION_PGLZ, true}, + {"0", WAL_COMPRESSION_NONE, true}, + {NULL, 0, false} +}; + +/* + * Options for enum values stored in other modules + */ +extern const struct config_enum_entry wal_level_options[]; +extern const struct config_enum_entry archive_mode_options[]; +extern const struct config_enum_entry recovery_target_action_options[]; +extern const struct config_enum_entry sync_method_options[]; +extern const struct config_enum_entry dynamic_shared_memory_options[]; + +/* + * GUC option variables that are exported from this module + */ +bool log_duration = false; +bool Debug_print_plan = false; +bool Debug_print_parse = false; +bool Debug_print_rewritten = false; +bool Debug_pretty_print = true; + +bool log_parser_stats = false; +bool log_planner_stats = false; +bool log_executor_stats = false; +bool log_statement_stats = false; /* this is sort of all three above + * together */ +bool log_btree_build_stats = false; +char *event_source; + +bool row_security; +bool check_function_bodies = true; + +/* + * This GUC exists solely for backward compatibility, check its definition for + * details. + */ +bool default_with_oids = false; +bool session_auth_is_superuser; + +int log_min_error_statement = ERROR; +int log_min_messages = WARNING; +int client_min_messages = NOTICE; +int log_min_duration_sample = -1; +int log_min_duration_statement = -1; +int log_parameter_max_length = -1; +int log_parameter_max_length_on_error = 0; +int log_temp_files = -1; +double log_statement_sample_rate = 1.0; +double log_xact_sample_rate = 0; +int trace_recovery_messages = LOG; +char *backtrace_functions; + +int temp_file_limit = -1; + +int num_temp_buffers = 1024; + +char *cluster_name = ""; +char *ConfigFileName; +char *HbaFileName; +char *IdentFileName; +char *external_pid_file; + +char *pgstat_temp_directory; + +char *application_name; + +int tcp_keepalives_idle; +int tcp_keepalives_interval; +int tcp_keepalives_count; +int tcp_user_timeout; + +/* + * SSL renegotiation was been removed in PostgreSQL 9.5, but we tolerate it + * being set to zero (meaning never renegotiate) for backward compatibility. + * This avoids breaking compatibility with clients that have never supported + * renegotiation and therefore always try to zero it. + */ +int ssl_renegotiation_limit; + +/* + * This really belongs in pg_shmem.c, but is defined here so that it doesn't + * need to be duplicated in all the different implementations of pg_shmem.c. + */ +int huge_pages; +int huge_page_size; + +/* + * These variables are all dummies that don't do anything, except in some + * cases provide the value for SHOW to display. The real state is elsewhere + * and is kept in sync by assign_hooks. + */ +static char *syslog_ident_str; +static double phony_random_seed; +static char *client_encoding_string; +static char *datestyle_string; +static char *locale_collate; +static char *locale_ctype; +static char *server_encoding_string; +static char *server_version_string; +static int server_version_num; +static int syslog_facility; +static char *timezone_string; +static char *log_timezone_string; +static char *timezone_abbreviations_string; +static char *data_directory; +static char *session_authorization_string; +static int max_function_args; +static int max_index_keys; +static int max_identifier_length; +static int block_size; +static int segment_size; +static int shared_memory_size_mb; +static int shared_memory_size_in_huge_pages; +static int wal_block_size; +static bool data_checksums; +static bool integer_datetimes; +static bool assert_enabled; +static char *recovery_target_timeline_string; +static char *recovery_target_string; +static char *recovery_target_xid_string; +static char *recovery_target_name_string; +static char *recovery_target_lsn_string; + +/* should be static, but commands/variable.c needs to get at this */ +char *role_string; + +/* should be static, but guc.c needs to get at this */ +bool in_hot_standby_guc; + + +/* + * Displayable names for context types (enum GucContext) + * + * Note: these strings are deliberately not localized. + */ +const char *const GucContext_Names[] = +{ + /* PGC_INTERNAL */ "internal", + /* PGC_POSTMASTER */ "postmaster", + /* PGC_SIGHUP */ "sighup", + /* PGC_SU_BACKEND */ "superuser-backend", + /* PGC_BACKEND */ "backend", + /* PGC_SUSET */ "superuser", + /* PGC_USERSET */ "user" +}; + +StaticAssertDecl(lengthof(GucContext_Names) == (PGC_USERSET + 1), + "array length mismatch"); + +/* + * Displayable names for source types (enum GucSource) + * + * Note: these strings are deliberately not localized. + */ +const char *const GucSource_Names[] = +{ + /* PGC_S_DEFAULT */ "default", + /* PGC_S_DYNAMIC_DEFAULT */ "default", + /* PGC_S_ENV_VAR */ "environment variable", + /* PGC_S_FILE */ "configuration file", + /* PGC_S_ARGV */ "command line", + /* PGC_S_GLOBAL */ "global", + /* PGC_S_DATABASE */ "database", + /* PGC_S_USER */ "user", + /* PGC_S_DATABASE_USER */ "database user", + /* PGC_S_CLIENT */ "client", + /* PGC_S_OVERRIDE */ "override", + /* PGC_S_INTERACTIVE */ "interactive", + /* PGC_S_TEST */ "test", + /* PGC_S_SESSION */ "session" +}; + +StaticAssertDecl(lengthof(GucSource_Names) == (PGC_S_SESSION + 1), + "array length mismatch"); + +/* + * Displayable names for the groupings defined in enum config_group + */ +const char *const config_group_names[] = +{ + /* UNGROUPED */ + gettext_noop("Ungrouped"), + /* FILE_LOCATIONS */ + gettext_noop("File Locations"), + /* CONN_AUTH_SETTINGS */ + gettext_noop("Connections and Authentication / Connection Settings"), + /* CONN_AUTH_TCP */ + gettext_noop("Connections and Authentication / TCP Settings"), + /* CONN_AUTH_AUTH */ + gettext_noop("Connections and Authentication / Authentication"), + /* CONN_AUTH_SSL */ + gettext_noop("Connections and Authentication / SSL"), + /* RESOURCES_MEM */ + gettext_noop("Resource Usage / Memory"), + /* RESOURCES_DISK */ + gettext_noop("Resource Usage / Disk"), + /* RESOURCES_KERNEL */ + gettext_noop("Resource Usage / Kernel Resources"), + /* RESOURCES_VACUUM_DELAY */ + gettext_noop("Resource Usage / Cost-Based Vacuum Delay"), + /* RESOURCES_BGWRITER */ + gettext_noop("Resource Usage / Background Writer"), + /* RESOURCES_ASYNCHRONOUS */ + gettext_noop("Resource Usage / Asynchronous Behavior"), + /* WAL_SETTINGS */ + gettext_noop("Write-Ahead Log / Settings"), + /* WAL_CHECKPOINTS */ + gettext_noop("Write-Ahead Log / Checkpoints"), + /* WAL_ARCHIVING */ + gettext_noop("Write-Ahead Log / Archiving"), + /* WAL_RECOVERY */ + gettext_noop("Write-Ahead Log / Recovery"), + /* WAL_ARCHIVE_RECOVERY */ + gettext_noop("Write-Ahead Log / Archive Recovery"), + /* WAL_RECOVERY_TARGET */ + gettext_noop("Write-Ahead Log / Recovery Target"), + /* REPLICATION_SENDING */ + gettext_noop("Replication / Sending Servers"), + /* REPLICATION_PRIMARY */ + gettext_noop("Replication / Primary Server"), + /* REPLICATION_STANDBY */ + gettext_noop("Replication / Standby Servers"), + /* REPLICATION_SUBSCRIBERS */ + gettext_noop("Replication / Subscribers"), + /* QUERY_TUNING_METHOD */ + gettext_noop("Query Tuning / Planner Method Configuration"), + /* QUERY_TUNING_COST */ + gettext_noop("Query Tuning / Planner Cost Constants"), + /* QUERY_TUNING_GEQO */ + gettext_noop("Query Tuning / Genetic Query Optimizer"), + /* QUERY_TUNING_OTHER */ + gettext_noop("Query Tuning / Other Planner Options"), + /* LOGGING_WHERE */ + gettext_noop("Reporting and Logging / Where to Log"), + /* LOGGING_WHEN */ + gettext_noop("Reporting and Logging / When to Log"), + /* LOGGING_WHAT */ + gettext_noop("Reporting and Logging / What to Log"), + /* PROCESS_TITLE */ + gettext_noop("Reporting and Logging / Process Title"), + /* STATS_MONITORING */ + gettext_noop("Statistics / Monitoring"), + /* STATS_CUMULATIVE */ + gettext_noop("Statistics / Cumulative Query and Index Statistics"), + /* AUTOVACUUM */ + gettext_noop("Autovacuum"), + /* CLIENT_CONN_STATEMENT */ + gettext_noop("Client Connection Defaults / Statement Behavior"), + /* CLIENT_CONN_LOCALE */ + gettext_noop("Client Connection Defaults / Locale and Formatting"), + /* CLIENT_CONN_PRELOAD */ + gettext_noop("Client Connection Defaults / Shared Library Preloading"), + /* CLIENT_CONN_OTHER */ + gettext_noop("Client Connection Defaults / Other Defaults"), + /* LOCK_MANAGEMENT */ + gettext_noop("Lock Management"), + /* COMPAT_OPTIONS_PREVIOUS */ + gettext_noop("Version and Platform Compatibility / Previous PostgreSQL Versions"), + /* COMPAT_OPTIONS_CLIENT */ + gettext_noop("Version and Platform Compatibility / Other Platforms and Clients"), + /* ERROR_HANDLING */ + gettext_noop("Error Handling"), + /* PRESET_OPTIONS */ + gettext_noop("Preset Options"), + /* CUSTOM_OPTIONS */ + gettext_noop("Customized Options"), + /* DEVELOPER_OPTIONS */ + gettext_noop("Developer Options"), + /* help_config wants this array to be null-terminated */ + NULL +}; + +StaticAssertDecl(lengthof(config_group_names) == (DEVELOPER_OPTIONS + 2), + "array length mismatch"); + +/* + * Displayable names for GUC variable types (enum config_type) + * + * Note: these strings are deliberately not localized. + */ +const char *const config_type_names[] = +{ + /* PGC_BOOL */ "bool", + /* PGC_INT */ "integer", + /* PGC_REAL */ "real", + /* PGC_STRING */ "string", + /* PGC_ENUM */ "enum" +}; + +StaticAssertDecl(lengthof(config_type_names) == (PGC_ENUM + 1), + "array length mismatch"); + + +/* + * Contents of GUC tables + * + * See src/backend/utils/misc/README for design notes. + * + * TO ADD AN OPTION: + * + * 1. Declare a global variable of type bool, int, double, or char* + * and make use of it. + * + * 2. Decide at what times it's safe to set the option. See guc.h for + * details. + * + * 3. Decide on a name, a default value, upper and lower bounds (if + * applicable), etc. + * + * 4. Add a record below. + * + * 5. Add it to src/backend/utils/misc/postgresql.conf.sample, if + * appropriate. + * + * 6. Don't forget to document the option (at least in config.sgml). + * + * 7. If it's a new GUC_LIST_QUOTE option, you must add it to + * variable_is_guc_list_quote() in src/bin/pg_dump/dumputils.c. + */ + +struct config_bool ConfigureNamesBool[] = +{ + { + {"enable_seqscan", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of sequential-scan plans."), + NULL, + GUC_EXPLAIN + }, + &enable_seqscan, + true, + NULL, NULL, NULL + }, + { + {"enable_indexscan", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of index-scan plans."), + NULL, + GUC_EXPLAIN + }, + &enable_indexscan, + true, + NULL, NULL, NULL + }, + { + {"enable_indexonlyscan", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of index-only-scan plans."), + NULL, + GUC_EXPLAIN + }, + &enable_indexonlyscan, + true, + NULL, NULL, NULL + }, + { + {"enable_bitmapscan", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of bitmap-scan plans."), + NULL, + GUC_EXPLAIN + }, + &enable_bitmapscan, + true, + NULL, NULL, NULL + }, + { + {"enable_tidscan", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of TID scan plans."), + NULL, + GUC_EXPLAIN + }, + &enable_tidscan, + true, + NULL, NULL, NULL + }, + { + {"enable_sort", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of explicit sort steps."), + NULL, + GUC_EXPLAIN + }, + &enable_sort, + true, + NULL, NULL, NULL + }, + { + {"enable_incremental_sort", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of incremental sort steps."), + NULL, + GUC_EXPLAIN + }, + &enable_incremental_sort, + true, + NULL, NULL, NULL + }, + { + {"enable_hashagg", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of hashed aggregation plans."), + NULL, + GUC_EXPLAIN + }, + &enable_hashagg, + true, + NULL, NULL, NULL + }, + { + {"enable_material", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of materialization."), + NULL, + GUC_EXPLAIN + }, + &enable_material, + true, + NULL, NULL, NULL + }, + { + {"enable_memoize", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of memoization."), + NULL, + GUC_EXPLAIN + }, + &enable_memoize, + true, + NULL, NULL, NULL + }, + { + {"enable_nestloop", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of nested-loop join plans."), + NULL, + GUC_EXPLAIN + }, + &enable_nestloop, + true, + NULL, NULL, NULL + }, + { + {"enable_mergejoin", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of merge join plans."), + NULL, + GUC_EXPLAIN + }, + &enable_mergejoin, + true, + NULL, NULL, NULL + }, + { + {"enable_hashjoin", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of hash join plans."), + NULL, + GUC_EXPLAIN + }, + &enable_hashjoin, + true, + NULL, NULL, NULL + }, + { + {"enable_gathermerge", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of gather merge plans."), + NULL, + GUC_EXPLAIN + }, + &enable_gathermerge, + true, + NULL, NULL, NULL + }, + { + {"enable_partitionwise_join", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables partitionwise join."), + NULL, + GUC_EXPLAIN + }, + &enable_partitionwise_join, + false, + NULL, NULL, NULL + }, + { + {"enable_partitionwise_aggregate", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables partitionwise aggregation and grouping."), + NULL, + GUC_EXPLAIN + }, + &enable_partitionwise_aggregate, + false, + NULL, NULL, NULL + }, + { + {"enable_parallel_append", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of parallel append plans."), + NULL, + GUC_EXPLAIN + }, + &enable_parallel_append, + true, + NULL, NULL, NULL + }, + { + {"enable_parallel_hash", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of parallel hash plans."), + NULL, + GUC_EXPLAIN + }, + &enable_parallel_hash, + true, + NULL, NULL, NULL + }, + { + {"enable_partition_pruning", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables plan-time and execution-time partition pruning."), + gettext_noop("Allows the query planner and executor to compare partition " + "bounds to conditions in the query to determine which " + "partitions must be scanned."), + GUC_EXPLAIN + }, + &enable_partition_pruning, + true, + NULL, NULL, NULL + }, + { + {"enable_async_append", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enables the planner's use of async append plans."), + NULL, + GUC_EXPLAIN + }, + &enable_async_append, + true, + NULL, NULL, NULL + }, + { + {"enable_group_by_reordering", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enable reordering of GROUP BY key."), + NULL, + GUC_EXPLAIN + }, + &enable_group_by_reordering, + true, + NULL, NULL, NULL + }, + { + {"geqo", PGC_USERSET, QUERY_TUNING_GEQO, + gettext_noop("Enables genetic query optimization."), + gettext_noop("This algorithm attempts to do planning without " + "exhaustive searching."), + GUC_EXPLAIN + }, + &enable_geqo, + true, + NULL, NULL, NULL + }, + { + /* Not for general use --- used by SET SESSION AUTHORIZATION */ + {"is_superuser", PGC_INTERNAL, UNGROUPED, + gettext_noop("Shows whether the current user is a superuser."), + NULL, + GUC_REPORT | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &session_auth_is_superuser, + false, + NULL, NULL, NULL + }, + { + {"bonjour", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Enables advertising the server via Bonjour."), + NULL + }, + &enable_bonjour, + false, + check_bonjour, NULL, NULL + }, + { + {"track_commit_timestamp", PGC_POSTMASTER, REPLICATION_SENDING, + gettext_noop("Collects transaction commit time."), + NULL + }, + &track_commit_timestamp, + false, + NULL, NULL, NULL + }, + { + {"ssl", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Enables SSL connections."), + NULL + }, + &EnableSSL, + false, + check_ssl, NULL, NULL + }, + { + {"ssl_passphrase_command_supports_reload", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Controls whether ssl_passphrase_command is called during server reload."), + NULL + }, + &ssl_passphrase_command_supports_reload, + false, + NULL, NULL, NULL + }, + { + {"ssl_prefer_server_ciphers", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Give priority to server ciphersuite order."), + NULL + }, + &SSLPreferServerCiphers, + true, + NULL, NULL, NULL + }, + { + {"fsync", PGC_SIGHUP, WAL_SETTINGS, + gettext_noop("Forces synchronization of updates to disk."), + gettext_noop("The server will use the fsync() system call in several places to make " + "sure that updates are physically written to disk. This insures " + "that a database cluster will recover to a consistent state after " + "an operating system or hardware crash.") + }, + &enableFsync, + true, + NULL, NULL, NULL + }, + { + {"ignore_checksum_failure", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Continues processing after a checksum failure."), + gettext_noop("Detection of a checksum failure normally causes PostgreSQL to " + "report an error, aborting the current transaction. Setting " + "ignore_checksum_failure to true causes the system to ignore the failure " + "(but still report a warning), and continue processing. This " + "behavior could cause crashes or other serious problems. Only " + "has an effect if checksums are enabled."), + GUC_NOT_IN_SAMPLE + }, + &ignore_checksum_failure, + false, + NULL, NULL, NULL + }, + { + {"zero_damaged_pages", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Continues processing past damaged page headers."), + gettext_noop("Detection of a damaged page header normally causes PostgreSQL to " + "report an error, aborting the current transaction. Setting " + "zero_damaged_pages to true causes the system to instead report a " + "warning, zero out the damaged page, and continue processing. This " + "behavior will destroy data, namely all the rows on the damaged page."), + GUC_NOT_IN_SAMPLE + }, + &zero_damaged_pages, + false, + NULL, NULL, NULL + }, + { + {"ignore_invalid_pages", PGC_POSTMASTER, DEVELOPER_OPTIONS, + gettext_noop("Continues recovery after an invalid pages failure."), + gettext_noop("Detection of WAL records having references to " + "invalid pages during recovery causes PostgreSQL to " + "raise a PANIC-level error, aborting the recovery. " + "Setting ignore_invalid_pages to true causes " + "the system to ignore invalid page references " + "in WAL records (but still report a warning), " + "and continue recovery. This behavior may cause " + "crashes, data loss, propagate or hide corruption, " + "or other serious problems. Only has an effect " + "during recovery or in standby mode."), + GUC_NOT_IN_SAMPLE + }, + &ignore_invalid_pages, + false, + NULL, NULL, NULL + }, + { + {"full_page_writes", PGC_SIGHUP, WAL_SETTINGS, + gettext_noop("Writes full pages to WAL when first modified after a checkpoint."), + gettext_noop("A page write in process during an operating system crash might be " + "only partially written to disk. During recovery, the row changes " + "stored in WAL are not enough to recover. This option writes " + "pages when first modified after a checkpoint to WAL so full recovery " + "is possible.") + }, + &fullPageWrites, + true, + NULL, NULL, NULL + }, + + { + {"wal_log_hints", PGC_POSTMASTER, WAL_SETTINGS, + gettext_noop("Writes full pages to WAL when first modified after a checkpoint, even for a non-critical modification."), + NULL + }, + &wal_log_hints, + false, + NULL, NULL, NULL + }, + + { + {"wal_init_zero", PGC_SUSET, WAL_SETTINGS, + gettext_noop("Writes zeroes to new WAL files before first use."), + NULL + }, + &wal_init_zero, + true, + NULL, NULL, NULL + }, + + { + {"wal_recycle", PGC_SUSET, WAL_SETTINGS, + gettext_noop("Recycles WAL files by renaming them."), + NULL + }, + &wal_recycle, + true, + NULL, NULL, NULL + }, + + { + {"log_checkpoints", PGC_SIGHUP, LOGGING_WHAT, + gettext_noop("Logs each checkpoint."), + NULL + }, + &log_checkpoints, + true, + NULL, NULL, NULL + }, + { + {"log_connections", PGC_SU_BACKEND, LOGGING_WHAT, + gettext_noop("Logs each successful connection."), + NULL + }, + &Log_connections, + false, + NULL, NULL, NULL + }, + { + {"log_disconnections", PGC_SU_BACKEND, LOGGING_WHAT, + gettext_noop("Logs end of a session, including duration."), + NULL + }, + &Log_disconnections, + false, + NULL, NULL, NULL + }, + { + {"log_replication_commands", PGC_SUSET, LOGGING_WHAT, + gettext_noop("Logs each replication command."), + NULL + }, + &log_replication_commands, + false, + NULL, NULL, NULL + }, + { + {"debug_assertions", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows whether the running server has assertion checks enabled."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &assert_enabled, +#ifdef USE_ASSERT_CHECKING + true, +#else + false, +#endif + NULL, NULL, NULL + }, + + { + {"exit_on_error", PGC_USERSET, ERROR_HANDLING_OPTIONS, + gettext_noop("Terminate session on any error."), + NULL + }, + &ExitOnAnyError, + false, + NULL, NULL, NULL + }, + { + {"restart_after_crash", PGC_SIGHUP, ERROR_HANDLING_OPTIONS, + gettext_noop("Reinitialize server after backend crash."), + NULL + }, + &restart_after_crash, + true, + NULL, NULL, NULL + }, + { + {"remove_temp_files_after_crash", PGC_SIGHUP, DEVELOPER_OPTIONS, + gettext_noop("Remove temporary files after backend crash."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &remove_temp_files_after_crash, + true, + NULL, NULL, NULL + }, + + { + {"log_duration", PGC_SUSET, LOGGING_WHAT, + gettext_noop("Logs the duration of each completed SQL statement."), + NULL + }, + &log_duration, + false, + NULL, NULL, NULL + }, + { + {"debug_print_parse", PGC_USERSET, LOGGING_WHAT, + gettext_noop("Logs each query's parse tree."), + NULL + }, + &Debug_print_parse, + false, + NULL, NULL, NULL + }, + { + {"debug_print_rewritten", PGC_USERSET, LOGGING_WHAT, + gettext_noop("Logs each query's rewritten parse tree."), + NULL + }, + &Debug_print_rewritten, + false, + NULL, NULL, NULL + }, + { + {"debug_print_plan", PGC_USERSET, LOGGING_WHAT, + gettext_noop("Logs each query's execution plan."), + NULL + }, + &Debug_print_plan, + false, + NULL, NULL, NULL + }, + { + {"debug_pretty_print", PGC_USERSET, LOGGING_WHAT, + gettext_noop("Indents parse and plan tree displays."), + NULL + }, + &Debug_pretty_print, + true, + NULL, NULL, NULL + }, + { + {"log_parser_stats", PGC_SUSET, STATS_MONITORING, + gettext_noop("Writes parser performance statistics to the server log."), + NULL + }, + &log_parser_stats, + false, + check_stage_log_stats, NULL, NULL + }, + { + {"log_planner_stats", PGC_SUSET, STATS_MONITORING, + gettext_noop("Writes planner performance statistics to the server log."), + NULL + }, + &log_planner_stats, + false, + check_stage_log_stats, NULL, NULL + }, + { + {"log_executor_stats", PGC_SUSET, STATS_MONITORING, + gettext_noop("Writes executor performance statistics to the server log."), + NULL + }, + &log_executor_stats, + false, + check_stage_log_stats, NULL, NULL + }, + { + {"log_statement_stats", PGC_SUSET, STATS_MONITORING, + gettext_noop("Writes cumulative performance statistics to the server log."), + NULL + }, + &log_statement_stats, + false, + check_log_stats, NULL, NULL + }, +#ifdef BTREE_BUILD_STATS + { + {"log_btree_build_stats", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Logs system resource usage statistics (memory and CPU) on various B-tree operations."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &log_btree_build_stats, + false, + NULL, NULL, NULL + }, +#endif + + { + {"track_activities", PGC_SUSET, STATS_CUMULATIVE, + gettext_noop("Collects information about executing commands."), + gettext_noop("Enables the collection of information on the currently " + "executing command of each session, along with " + "the time at which that command began execution.") + }, + &pgstat_track_activities, + true, + NULL, NULL, NULL + }, + { + {"track_counts", PGC_SUSET, STATS_CUMULATIVE, + gettext_noop("Collects statistics on database activity."), + NULL + }, + &pgstat_track_counts, + true, + NULL, NULL, NULL + }, + { + {"track_io_timing", PGC_SUSET, STATS_CUMULATIVE, + gettext_noop("Collects timing statistics for database I/O activity."), + NULL + }, + &track_io_timing, + false, + NULL, NULL, NULL + }, + { + {"track_wal_io_timing", PGC_SUSET, STATS_CUMULATIVE, + gettext_noop("Collects timing statistics for WAL I/O activity."), + NULL + }, + &track_wal_io_timing, + false, + NULL, NULL, NULL + }, + + { + {"update_process_title", PGC_SUSET, PROCESS_TITLE, + gettext_noop("Updates the process title to show the active SQL command."), + gettext_noop("Enables updating of the process title every time a new SQL command is received by the server.") + }, + &update_process_title, +#ifdef WIN32 + false, +#else + true, +#endif + NULL, NULL, NULL + }, + + { + {"autovacuum", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Starts the autovacuum subprocess."), + NULL + }, + &autovacuum_start_daemon, + true, + NULL, NULL, NULL + }, + + { + {"trace_notify", PGC_USERSET, DEVELOPER_OPTIONS, + gettext_noop("Generates debugging output for LISTEN and NOTIFY."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &Trace_notify, + false, + NULL, NULL, NULL + }, + +#ifdef LOCK_DEBUG + { + {"trace_locks", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Emits information about lock usage."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &Trace_locks, + false, + NULL, NULL, NULL + }, + { + {"trace_userlocks", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Emits information about user lock usage."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &Trace_userlocks, + false, + NULL, NULL, NULL + }, + { + {"trace_lwlocks", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Emits information about lightweight lock usage."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &Trace_lwlocks, + false, + NULL, NULL, NULL + }, + { + {"debug_deadlocks", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Dumps information about all current locks when a deadlock timeout occurs."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &Debug_deadlocks, + false, + NULL, NULL, NULL + }, +#endif + + { + {"log_lock_waits", PGC_SUSET, LOGGING_WHAT, + gettext_noop("Logs long lock waits."), + NULL + }, + &log_lock_waits, + false, + NULL, NULL, NULL + }, + { + {"log_recovery_conflict_waits", PGC_SIGHUP, LOGGING_WHAT, + gettext_noop("Logs standby recovery conflict waits."), + NULL + }, + &log_recovery_conflict_waits, + false, + NULL, NULL, NULL + }, + { + {"log_hostname", PGC_SIGHUP, LOGGING_WHAT, + gettext_noop("Logs the host name in the connection logs."), + gettext_noop("By default, connection logs only show the IP address " + "of the connecting host. If you want them to show the host name you " + "can turn this on, but depending on your host name resolution " + "setup it might impose a non-negligible performance penalty.") + }, + &log_hostname, + false, + NULL, NULL, NULL + }, + { + {"transform_null_equals", PGC_USERSET, COMPAT_OPTIONS_CLIENT, + gettext_noop("Treats \"expr=NULL\" as \"expr IS NULL\"."), + gettext_noop("When turned on, expressions of the form expr = NULL " + "(or NULL = expr) are treated as expr IS NULL, that is, they " + "return true if expr evaluates to the null value, and false " + "otherwise. The correct behavior of expr = NULL is to always " + "return null (unknown).") + }, + &Transform_null_equals, + false, + NULL, NULL, NULL + }, + { + {"db_user_namespace", PGC_SIGHUP, CONN_AUTH_AUTH, + gettext_noop("Enables per-database user names."), + NULL + }, + &Db_user_namespace, + false, + NULL, NULL, NULL + }, + { + {"default_transaction_read_only", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the default read-only status of new transactions."), + NULL, + GUC_REPORT + }, + &DefaultXactReadOnly, + false, + NULL, NULL, NULL + }, + { + {"transaction_read_only", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the current transaction's read-only status."), + NULL, + GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &XactReadOnly, + false, + check_transaction_read_only, NULL, NULL + }, + { + {"default_transaction_deferrable", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the default deferrable status of new transactions."), + NULL + }, + &DefaultXactDeferrable, + false, + NULL, NULL, NULL + }, + { + {"transaction_deferrable", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Whether to defer a read-only serializable transaction until it can be executed with no possible serialization failures."), + NULL, + GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &XactDeferrable, + false, + check_transaction_deferrable, NULL, NULL + }, + { + {"row_security", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Enable row security."), + gettext_noop("When enabled, row security will be applied to all users.") + }, + &row_security, + true, + NULL, NULL, NULL + }, + { + {"check_function_bodies", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Check routine bodies during CREATE FUNCTION and CREATE PROCEDURE."), + NULL + }, + &check_function_bodies, + true, + NULL, NULL, NULL + }, + { + {"array_nulls", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("Enable input of NULL elements in arrays."), + gettext_noop("When turned on, unquoted NULL in an array input " + "value means a null value; " + "otherwise it is taken literally.") + }, + &Array_nulls, + true, + NULL, NULL, NULL + }, + + /* + * WITH OIDS support, and consequently default_with_oids, was removed in + * PostgreSQL 12, but we tolerate the parameter being set to false to + * avoid unnecessarily breaking older dump files. + */ + { + {"default_with_oids", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("WITH OIDS is no longer supported; this can only be false."), + NULL, + GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE + }, + &default_with_oids, + false, + check_default_with_oids, NULL, NULL + }, + { + {"logging_collector", PGC_POSTMASTER, LOGGING_WHERE, + gettext_noop("Start a subprocess to capture stderr output and/or csvlogs into log files."), + NULL + }, + &Logging_collector, + false, + NULL, NULL, NULL + }, + { + {"log_truncate_on_rotation", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Truncate existing log files of same name during log rotation."), + NULL + }, + &Log_truncate_on_rotation, + false, + NULL, NULL, NULL + }, + +#ifdef TRACE_SORT + { + {"trace_sort", PGC_USERSET, DEVELOPER_OPTIONS, + gettext_noop("Emit information about resource usage in sorting."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &trace_sort, + false, + NULL, NULL, NULL + }, +#endif + +#ifdef TRACE_SYNCSCAN + /* this is undocumented because not exposed in a standard build */ + { + {"trace_syncscan", PGC_USERSET, DEVELOPER_OPTIONS, + gettext_noop("Generate debugging output for synchronized scanning."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &trace_syncscan, + false, + NULL, NULL, NULL + }, +#endif + +#ifdef DEBUG_BOUNDED_SORT + /* this is undocumented because not exposed in a standard build */ + { + { + "optimize_bounded_sort", PGC_USERSET, QUERY_TUNING_METHOD, + gettext_noop("Enable bounded sorting using heap sort."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_EXPLAIN + }, + &optimize_bounded_sort, + true, + NULL, NULL, NULL + }, +#endif + +#ifdef WAL_DEBUG + { + {"wal_debug", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Emit WAL-related debugging output."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &XLOG_DEBUG, + false, + NULL, NULL, NULL + }, +#endif + + { + {"integer_datetimes", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows whether datetimes are integer based."), + NULL, + GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &integer_datetimes, + true, + NULL, NULL, NULL + }, + + { + {"krb_caseins_users", PGC_SIGHUP, CONN_AUTH_AUTH, + gettext_noop("Sets whether Kerberos and GSSAPI user names should be treated as case-insensitive."), + NULL + }, + &pg_krb_caseins_users, + false, + NULL, NULL, NULL + }, + + { + {"escape_string_warning", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("Warn about backslash escapes in ordinary string literals."), + NULL + }, + &escape_string_warning, + true, + NULL, NULL, NULL + }, + + { + {"standard_conforming_strings", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("Causes '...' strings to treat backslashes literally."), + NULL, + GUC_REPORT + }, + &standard_conforming_strings, + true, + NULL, NULL, NULL + }, + + { + {"synchronize_seqscans", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("Enable synchronized sequential scans."), + NULL + }, + &synchronize_seqscans, + true, + NULL, NULL, NULL + }, + + { + {"recovery_target_inclusive", PGC_POSTMASTER, WAL_RECOVERY_TARGET, + gettext_noop("Sets whether to include or exclude transaction with recovery target."), + NULL + }, + &recoveryTargetInclusive, + true, + NULL, NULL, NULL + }, + + { + {"hot_standby", PGC_POSTMASTER, REPLICATION_STANDBY, + gettext_noop("Allows connections and queries during recovery."), + NULL + }, + &EnableHotStandby, + true, + NULL, NULL, NULL + }, + + { + {"hot_standby_feedback", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Allows feedback from a hot standby to the primary that will avoid query conflicts."), + NULL + }, + &hot_standby_feedback, + false, + NULL, NULL, NULL + }, + + { + {"in_hot_standby", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows whether hot standby is currently active."), + NULL, + GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &in_hot_standby_guc, + false, + NULL, NULL, show_in_hot_standby + }, + + { + {"allow_system_table_mods", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Allows modifications of the structure of system tables."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &allowSystemTableMods, + false, + NULL, NULL, NULL + }, + + { + {"ignore_system_indexes", PGC_BACKEND, DEVELOPER_OPTIONS, + gettext_noop("Disables reading from system indexes."), + gettext_noop("It does not prevent updating the indexes, so it is safe " + "to use. The worst consequence is slowness."), + GUC_NOT_IN_SAMPLE + }, + &IgnoreSystemIndexes, + false, + NULL, NULL, NULL + }, + + { + {"allow_in_place_tablespaces", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Allows tablespaces directly inside pg_tblspc, for testing."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &allow_in_place_tablespaces, + false, + NULL, NULL, NULL + }, + + { + {"lo_compat_privileges", PGC_SUSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("Enables backward compatibility mode for privilege checks on large objects."), + gettext_noop("Skips privilege checks when reading or modifying large objects, " + "for compatibility with PostgreSQL releases prior to 9.0.") + }, + &lo_compat_privileges, + false, + NULL, NULL, NULL + }, + + { + {"quote_all_identifiers", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("When generating SQL fragments, quote all identifiers."), + NULL, + }, + "e_all_identifiers, + false, + NULL, NULL, NULL + }, + + { + {"data_checksums", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows whether data checksums are turned on for this cluster."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_RUNTIME_COMPUTED + }, + &data_checksums, + false, + NULL, NULL, NULL + }, + + { + {"syslog_sequence_numbers", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Add sequence number to syslog messages to avoid duplicate suppression."), + NULL + }, + &syslog_sequence_numbers, + true, + NULL, NULL, NULL + }, + + { + {"syslog_split_messages", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Split messages sent to syslog by lines and to fit into 1024 bytes."), + NULL + }, + &syslog_split_messages, + true, + NULL, NULL, NULL + }, + + { + {"parallel_leader_participation", PGC_USERSET, RESOURCES_ASYNCHRONOUS, + gettext_noop("Controls whether Gather and Gather Merge also run subplans."), + gettext_noop("Should gather nodes also run subplans or just gather tuples?"), + GUC_EXPLAIN + }, + ¶llel_leader_participation, + true, + NULL, NULL, NULL + }, + + { + {"jit", PGC_USERSET, QUERY_TUNING_OTHER, + gettext_noop("Allow JIT compilation."), + NULL, + GUC_EXPLAIN + }, + &jit_enabled, + true, + NULL, NULL, NULL + }, + + { + {"jit_debugging_support", PGC_SU_BACKEND, DEVELOPER_OPTIONS, + gettext_noop("Register JIT-compiled functions with debugger."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &jit_debugging_support, + false, + + /* + * This is not guaranteed to be available, but given it's a developer + * oriented option, it doesn't seem worth adding code checking + * availability. + */ + NULL, NULL, NULL + }, + + { + {"jit_dump_bitcode", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Write out LLVM bitcode to facilitate JIT debugging."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &jit_dump_bitcode, + false, + NULL, NULL, NULL + }, + + { + {"jit_expressions", PGC_USERSET, DEVELOPER_OPTIONS, + gettext_noop("Allow JIT compilation of expressions."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &jit_expressions, + true, + NULL, NULL, NULL + }, + + { + {"jit_profiling_support", PGC_SU_BACKEND, DEVELOPER_OPTIONS, + gettext_noop("Register JIT-compiled functions with perf profiler."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &jit_profiling_support, + false, + + /* + * This is not guaranteed to be available, but given it's a developer + * oriented option, it doesn't seem worth adding code checking + * availability. + */ + NULL, NULL, NULL + }, + + { + {"jit_tuple_deforming", PGC_USERSET, DEVELOPER_OPTIONS, + gettext_noop("Allow JIT compilation of tuple deforming."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &jit_tuple_deforming, + true, + NULL, NULL, NULL + }, + + { + {"data_sync_retry", PGC_POSTMASTER, ERROR_HANDLING_OPTIONS, + gettext_noop("Whether to continue running after a failure to sync data files."), + }, + &data_sync_retry, + false, + NULL, NULL, NULL + }, + + { + {"wal_receiver_create_temp_slot", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets whether a WAL receiver should create a temporary replication slot if no permanent slot is configured."), + }, + &wal_receiver_create_temp_slot, + false, + NULL, NULL, NULL + }, + + /* End-of-list marker */ + { + {NULL, 0, 0, NULL, NULL}, NULL, false, NULL, NULL, NULL + } +}; + + +struct config_int ConfigureNamesInt[] = +{ + { + {"archive_timeout", PGC_SIGHUP, WAL_ARCHIVING, + gettext_noop("Sets the amount of time to wait before forcing a " + "switch to the next WAL file."), + NULL, + GUC_UNIT_S + }, + &XLogArchiveTimeout, + 0, 0, INT_MAX / 2, + NULL, NULL, NULL + }, + { + {"post_auth_delay", PGC_BACKEND, DEVELOPER_OPTIONS, + gettext_noop("Sets the amount of time to wait after " + "authentication on connection startup."), + gettext_noop("This allows attaching a debugger to the process."), + GUC_NOT_IN_SAMPLE | GUC_UNIT_S + }, + &PostAuthDelay, + 0, 0, INT_MAX / 1000000, + NULL, NULL, NULL + }, + { + {"default_statistics_target", PGC_USERSET, QUERY_TUNING_OTHER, + gettext_noop("Sets the default statistics target."), + gettext_noop("This applies to table columns that have not had a " + "column-specific target set via ALTER TABLE SET STATISTICS.") + }, + &default_statistics_target, + 100, 1, 10000, + NULL, NULL, NULL + }, + { + {"from_collapse_limit", PGC_USERSET, QUERY_TUNING_OTHER, + gettext_noop("Sets the FROM-list size beyond which subqueries " + "are not collapsed."), + gettext_noop("The planner will merge subqueries into upper " + "queries if the resulting FROM list would have no more than " + "this many items."), + GUC_EXPLAIN + }, + &from_collapse_limit, + 8, 1, INT_MAX, + NULL, NULL, NULL + }, + { + {"join_collapse_limit", PGC_USERSET, QUERY_TUNING_OTHER, + gettext_noop("Sets the FROM-list size beyond which JOIN " + "constructs are not flattened."), + gettext_noop("The planner will flatten explicit JOIN " + "constructs into lists of FROM items whenever a " + "list of no more than this many items would result."), + GUC_EXPLAIN + }, + &join_collapse_limit, + 8, 1, INT_MAX, + NULL, NULL, NULL + }, + { + {"geqo_threshold", PGC_USERSET, QUERY_TUNING_GEQO, + gettext_noop("Sets the threshold of FROM items beyond which GEQO is used."), + NULL, + GUC_EXPLAIN + }, + &geqo_threshold, + 12, 2, INT_MAX, + NULL, NULL, NULL + }, + { + {"geqo_effort", PGC_USERSET, QUERY_TUNING_GEQO, + gettext_noop("GEQO: effort is used to set the default for other GEQO parameters."), + NULL, + GUC_EXPLAIN + }, + &Geqo_effort, + DEFAULT_GEQO_EFFORT, MIN_GEQO_EFFORT, MAX_GEQO_EFFORT, + NULL, NULL, NULL + }, + { + {"geqo_pool_size", PGC_USERSET, QUERY_TUNING_GEQO, + gettext_noop("GEQO: number of individuals in the population."), + gettext_noop("Zero selects a suitable default value."), + GUC_EXPLAIN + }, + &Geqo_pool_size, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + { + {"geqo_generations", PGC_USERSET, QUERY_TUNING_GEQO, + gettext_noop("GEQO: number of iterations of the algorithm."), + gettext_noop("Zero selects a suitable default value."), + GUC_EXPLAIN + }, + &Geqo_generations, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + /* This is PGC_SUSET to prevent hiding from log_lock_waits. */ + {"deadlock_timeout", PGC_SUSET, LOCK_MANAGEMENT, + gettext_noop("Sets the time to wait on a lock before checking for deadlock."), + NULL, + GUC_UNIT_MS + }, + &DeadlockTimeout, + 1000, 1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"max_standby_archive_delay", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets the maximum delay before canceling queries when a hot standby server is processing archived WAL data."), + NULL, + GUC_UNIT_MS + }, + &max_standby_archive_delay, + 30 * 1000, -1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"max_standby_streaming_delay", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets the maximum delay before canceling queries when a hot standby server is processing streamed WAL data."), + NULL, + GUC_UNIT_MS + }, + &max_standby_streaming_delay, + 30 * 1000, -1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"recovery_min_apply_delay", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets the minimum delay for applying changes during recovery."), + NULL, + GUC_UNIT_MS + }, + &recovery_min_apply_delay, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"wal_receiver_status_interval", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets the maximum interval between WAL receiver status reports to the sending server."), + NULL, + GUC_UNIT_S + }, + &wal_receiver_status_interval, + 10, 0, INT_MAX / 1000, + NULL, NULL, NULL + }, + + { + {"wal_receiver_timeout", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets the maximum wait time to receive data from the sending server."), + NULL, + GUC_UNIT_MS + }, + &wal_receiver_timeout, + 60 * 1000, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"max_connections", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Sets the maximum number of concurrent connections."), + NULL + }, + &MaxConnections, + 100, 1, MAX_BACKENDS, + check_max_connections, NULL, NULL + }, + + { + /* see max_connections */ + {"superuser_reserved_connections", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Sets the number of connection slots reserved for superusers."), + NULL + }, + &ReservedBackends, + 3, 0, MAX_BACKENDS, + NULL, NULL, NULL + }, + + { + {"min_dynamic_shared_memory", PGC_POSTMASTER, RESOURCES_MEM, + gettext_noop("Amount of dynamic shared memory reserved at startup."), + NULL, + GUC_UNIT_MB + }, + &min_dynamic_shared_memory, + 0, 0, (int) Min((size_t) INT_MAX, SIZE_MAX / (1024 * 1024)), + NULL, NULL, NULL + }, + + /* + * We sometimes multiply the number of shared buffers by two without + * checking for overflow, so we mustn't allow more than INT_MAX / 2. + */ + { + {"shared_buffers", PGC_POSTMASTER, RESOURCES_MEM, + gettext_noop("Sets the number of shared memory buffers used by the server."), + NULL, + GUC_UNIT_BLOCKS + }, + &NBuffers, + 16384, 16, INT_MAX / 2, + NULL, NULL, NULL + }, + + { + {"shared_memory_size", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the size of the server's main shared memory area (rounded up to the nearest MB)."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_UNIT_MB | GUC_RUNTIME_COMPUTED + }, + &shared_memory_size_mb, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"shared_memory_size_in_huge_pages", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the number of huge pages needed for the main shared memory area."), + gettext_noop("-1 indicates that the value could not be determined."), + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_RUNTIME_COMPUTED + }, + &shared_memory_size_in_huge_pages, + -1, -1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"temp_buffers", PGC_USERSET, RESOURCES_MEM, + gettext_noop("Sets the maximum number of temporary buffers used by each session."), + NULL, + GUC_UNIT_BLOCKS | GUC_EXPLAIN + }, + &num_temp_buffers, + 1024, 100, INT_MAX / 2, + check_temp_buffers, NULL, NULL + }, + + { + {"port", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Sets the TCP port the server listens on."), + NULL + }, + &PostPortNumber, + DEF_PGPORT, 1, 65535, + NULL, NULL, NULL + }, + + { + {"unix_socket_permissions", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Sets the access permissions of the Unix-domain socket."), + gettext_noop("Unix-domain sockets use the usual Unix file system " + "permission set. The parameter value is expected " + "to be a numeric mode specification in the form " + "accepted by the chmod and umask system calls. " + "(To use the customary octal format the number must " + "start with a 0 (zero).)") + }, + &Unix_socket_permissions, + 0777, 0000, 0777, + NULL, NULL, show_unix_socket_permissions + }, + + { + {"log_file_mode", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Sets the file permissions for log files."), + gettext_noop("The parameter value is expected " + "to be a numeric mode specification in the form " + "accepted by the chmod and umask system calls. " + "(To use the customary octal format the number must " + "start with a 0 (zero).)") + }, + &Log_file_mode, + 0600, 0000, 0777, + NULL, NULL, show_log_file_mode + }, + + + { + {"data_directory_mode", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the mode of the data directory."), + gettext_noop("The parameter value is a numeric mode specification " + "in the form accepted by the chmod and umask system " + "calls. (To use the customary octal format the number " + "must start with a 0 (zero).)"), + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_RUNTIME_COMPUTED + }, + &data_directory_mode, + 0700, 0000, 0777, + NULL, NULL, show_data_directory_mode + }, + + { + {"work_mem", PGC_USERSET, RESOURCES_MEM, + gettext_noop("Sets the maximum memory to be used for query workspaces."), + gettext_noop("This much memory can be used by each internal " + "sort operation and hash table before switching to " + "temporary disk files."), + GUC_UNIT_KB | GUC_EXPLAIN + }, + &work_mem, + 4096, 64, MAX_KILOBYTES, + NULL, NULL, NULL + }, + + { + {"maintenance_work_mem", PGC_USERSET, RESOURCES_MEM, + gettext_noop("Sets the maximum memory to be used for maintenance operations."), + gettext_noop("This includes operations such as VACUUM and CREATE INDEX."), + GUC_UNIT_KB + }, + &maintenance_work_mem, + 65536, 1024, MAX_KILOBYTES, + NULL, NULL, NULL + }, + + { + {"logical_decoding_work_mem", PGC_USERSET, RESOURCES_MEM, + gettext_noop("Sets the maximum memory to be used for logical decoding."), + gettext_noop("This much memory can be used by each internal " + "reorder buffer before spilling to disk."), + GUC_UNIT_KB + }, + &logical_decoding_work_mem, + 65536, 64, MAX_KILOBYTES, + NULL, NULL, NULL + }, + + /* + * We use the hopefully-safely-small value of 100kB as the compiled-in + * default for max_stack_depth. InitializeGUCOptions will increase it if + * possible, depending on the actual platform-specific stack limit. + */ + { + {"max_stack_depth", PGC_SUSET, RESOURCES_MEM, + gettext_noop("Sets the maximum stack depth, in kilobytes."), + NULL, + GUC_UNIT_KB + }, + &max_stack_depth, + 100, 100, MAX_KILOBYTES, + check_max_stack_depth, assign_max_stack_depth, NULL + }, + + { + {"temp_file_limit", PGC_SUSET, RESOURCES_DISK, + gettext_noop("Limits the total size of all temporary files used by each process."), + gettext_noop("-1 means no limit."), + GUC_UNIT_KB + }, + &temp_file_limit, + -1, -1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"vacuum_cost_page_hit", PGC_USERSET, RESOURCES_VACUUM_DELAY, + gettext_noop("Vacuum cost for a page found in the buffer cache."), + NULL + }, + &VacuumCostPageHit, + 1, 0, 10000, + NULL, NULL, NULL + }, + + { + {"vacuum_cost_page_miss", PGC_USERSET, RESOURCES_VACUUM_DELAY, + gettext_noop("Vacuum cost for a page not found in the buffer cache."), + NULL + }, + &VacuumCostPageMiss, + 2, 0, 10000, + NULL, NULL, NULL + }, + + { + {"vacuum_cost_page_dirty", PGC_USERSET, RESOURCES_VACUUM_DELAY, + gettext_noop("Vacuum cost for a page dirtied by vacuum."), + NULL + }, + &VacuumCostPageDirty, + 20, 0, 10000, + NULL, NULL, NULL + }, + + { + {"vacuum_cost_limit", PGC_USERSET, RESOURCES_VACUUM_DELAY, + gettext_noop("Vacuum cost amount available before napping."), + NULL + }, + &VacuumCostLimit, + 200, 1, 10000, + NULL, NULL, NULL + }, + + { + {"autovacuum_vacuum_cost_limit", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Vacuum cost amount available before napping, for autovacuum."), + NULL + }, + &autovacuum_vac_cost_limit, + -1, -1, 10000, + NULL, NULL, NULL + }, + + { + {"max_files_per_process", PGC_POSTMASTER, RESOURCES_KERNEL, + gettext_noop("Sets the maximum number of simultaneously open files for each server process."), + NULL + }, + &max_files_per_process, + 1000, 64, INT_MAX, + NULL, NULL, NULL + }, + + /* + * See also CheckRequiredParameterValues() if this parameter changes + */ + { + {"max_prepared_transactions", PGC_POSTMASTER, RESOURCES_MEM, + gettext_noop("Sets the maximum number of simultaneously prepared transactions."), + NULL + }, + &max_prepared_xacts, + 0, 0, MAX_BACKENDS, + NULL, NULL, NULL + }, + +#ifdef LOCK_DEBUG + { + {"trace_lock_oidmin", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Sets the minimum OID of tables for tracking locks."), + gettext_noop("Is used to avoid output on system tables."), + GUC_NOT_IN_SAMPLE + }, + &Trace_lock_oidmin, + FirstNormalObjectId, 0, INT_MAX, + NULL, NULL, NULL + }, + { + {"trace_lock_table", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Sets the OID of the table with unconditionally lock tracing."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &Trace_lock_table, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, +#endif + + { + {"statement_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the maximum allowed duration of any statement."), + gettext_noop("A value of 0 turns off the timeout."), + GUC_UNIT_MS + }, + &StatementTimeout, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"lock_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the maximum allowed duration of any wait for a lock."), + gettext_noop("A value of 0 turns off the timeout."), + GUC_UNIT_MS + }, + &LockTimeout, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"idle_in_transaction_session_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the maximum allowed idle time between queries, when in a transaction."), + gettext_noop("A value of 0 turns off the timeout."), + GUC_UNIT_MS + }, + &IdleInTransactionSessionTimeout, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"idle_session_timeout", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the maximum allowed idle time between queries, when not in a transaction."), + gettext_noop("A value of 0 turns off the timeout."), + GUC_UNIT_MS + }, + &IdleSessionTimeout, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"vacuum_freeze_min_age", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Minimum age at which VACUUM should freeze a table row."), + NULL + }, + &vacuum_freeze_min_age, + 50000000, 0, 1000000000, + NULL, NULL, NULL + }, + + { + {"vacuum_freeze_table_age", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Age at which VACUUM should scan whole table to freeze tuples."), + NULL + }, + &vacuum_freeze_table_age, + 150000000, 0, 2000000000, + NULL, NULL, NULL + }, + + { + {"vacuum_multixact_freeze_min_age", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Minimum age at which VACUUM should freeze a MultiXactId in a table row."), + NULL + }, + &vacuum_multixact_freeze_min_age, + 5000000, 0, 1000000000, + NULL, NULL, NULL + }, + + { + {"vacuum_multixact_freeze_table_age", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Multixact age at which VACUUM should scan whole table to freeze tuples."), + NULL + }, + &vacuum_multixact_freeze_table_age, + 150000000, 0, 2000000000, + NULL, NULL, NULL + }, + + { + {"vacuum_defer_cleanup_age", PGC_SIGHUP, REPLICATION_PRIMARY, + gettext_noop("Number of transactions by which VACUUM and HOT cleanup should be deferred, if any."), + NULL + }, + &vacuum_defer_cleanup_age, + 0, 0, 1000000, /* see ComputeXidHorizons */ + NULL, NULL, NULL + }, + { + {"vacuum_failsafe_age", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Age at which VACUUM should trigger failsafe to avoid a wraparound outage."), + NULL + }, + &vacuum_failsafe_age, + 1600000000, 0, 2100000000, + NULL, NULL, NULL + }, + { + {"vacuum_multixact_failsafe_age", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Multixact age at which VACUUM should trigger failsafe to avoid a wraparound outage."), + NULL + }, + &vacuum_multixact_failsafe_age, + 1600000000, 0, 2100000000, + NULL, NULL, NULL + }, + + /* + * See also CheckRequiredParameterValues() if this parameter changes + */ + { + {"max_locks_per_transaction", PGC_POSTMASTER, LOCK_MANAGEMENT, + gettext_noop("Sets the maximum number of locks per transaction."), + gettext_noop("The shared lock table is sized on the assumption that " + "at most max_locks_per_transaction * max_connections distinct " + "objects will need to be locked at any one time.") + }, + &max_locks_per_xact, + 64, 10, INT_MAX, + NULL, NULL, NULL + }, + + { + {"max_pred_locks_per_transaction", PGC_POSTMASTER, LOCK_MANAGEMENT, + gettext_noop("Sets the maximum number of predicate locks per transaction."), + gettext_noop("The shared predicate lock table is sized on the assumption that " + "at most max_pred_locks_per_transaction * max_connections distinct " + "objects will need to be locked at any one time.") + }, + &max_predicate_locks_per_xact, + 64, 10, INT_MAX, + NULL, NULL, NULL + }, + + { + {"max_pred_locks_per_relation", PGC_SIGHUP, LOCK_MANAGEMENT, + gettext_noop("Sets the maximum number of predicate-locked pages and tuples per relation."), + gettext_noop("If more than this total of pages and tuples in the same relation are locked " + "by a connection, those locks are replaced by a relation-level lock.") + }, + &max_predicate_locks_per_relation, + -2, INT_MIN, INT_MAX, + NULL, NULL, NULL + }, + + { + {"max_pred_locks_per_page", PGC_SIGHUP, LOCK_MANAGEMENT, + gettext_noop("Sets the maximum number of predicate-locked tuples per page."), + gettext_noop("If more than this number of tuples on the same page are locked " + "by a connection, those locks are replaced by a page-level lock.") + }, + &max_predicate_locks_per_page, + 2, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"authentication_timeout", PGC_SIGHUP, CONN_AUTH_AUTH, + gettext_noop("Sets the maximum allowed time to complete client authentication."), + NULL, + GUC_UNIT_S + }, + &AuthenticationTimeout, + 60, 1, 600, + NULL, NULL, NULL + }, + + { + /* Not for general use */ + {"pre_auth_delay", PGC_SIGHUP, DEVELOPER_OPTIONS, + gettext_noop("Sets the amount of time to wait before " + "authentication on connection startup."), + gettext_noop("This allows attaching a debugger to the process."), + GUC_NOT_IN_SAMPLE | GUC_UNIT_S + }, + &PreAuthDelay, + 0, 0, 60, + NULL, NULL, NULL + }, + + { + {"wal_decode_buffer_size", PGC_POSTMASTER, WAL_RECOVERY, + gettext_noop("Buffer size for reading ahead in the WAL during recovery."), + gettext_noop("This controls the maximum distance we can read ahead in the WAL to prefetch referenced data blocks."), + GUC_UNIT_BYTE + }, + &wal_decode_buffer_size, + 512 * 1024, 64 * 1024, MaxAllocSize, + NULL, NULL, NULL + }, + + { + {"wal_keep_size", PGC_SIGHUP, REPLICATION_SENDING, + gettext_noop("Sets the size of WAL files held for standby servers."), + NULL, + GUC_UNIT_MB + }, + &wal_keep_size_mb, + 0, 0, MAX_KILOBYTES, + NULL, NULL, NULL + }, + + { + {"min_wal_size", PGC_SIGHUP, WAL_CHECKPOINTS, + gettext_noop("Sets the minimum size to shrink the WAL to."), + NULL, + GUC_UNIT_MB + }, + &min_wal_size_mb, + DEFAULT_MIN_WAL_SEGS * (DEFAULT_XLOG_SEG_SIZE / (1024 * 1024)), + 2, MAX_KILOBYTES, + NULL, NULL, NULL + }, + + { + {"max_wal_size", PGC_SIGHUP, WAL_CHECKPOINTS, + gettext_noop("Sets the WAL size that triggers a checkpoint."), + NULL, + GUC_UNIT_MB + }, + &max_wal_size_mb, + DEFAULT_MAX_WAL_SEGS * (DEFAULT_XLOG_SEG_SIZE / (1024 * 1024)), + 2, MAX_KILOBYTES, + NULL, assign_max_wal_size, NULL + }, + + { + {"checkpoint_timeout", PGC_SIGHUP, WAL_CHECKPOINTS, + gettext_noop("Sets the maximum time between automatic WAL checkpoints."), + NULL, + GUC_UNIT_S + }, + &CheckPointTimeout, + 300, 30, 86400, + NULL, NULL, NULL + }, + + { + {"checkpoint_warning", PGC_SIGHUP, WAL_CHECKPOINTS, + gettext_noop("Sets the maximum time before warning if checkpoints " + "triggered by WAL volume happen too frequently."), + gettext_noop("Write a message to the server log if checkpoints " + "caused by the filling of WAL segment files happen more " + "frequently than this amount of time. " + "Zero turns off the warning."), + GUC_UNIT_S + }, + &CheckPointWarning, + 30, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"checkpoint_flush_after", PGC_SIGHUP, WAL_CHECKPOINTS, + gettext_noop("Number of pages after which previously performed writes are flushed to disk."), + NULL, + GUC_UNIT_BLOCKS + }, + &checkpoint_flush_after, + DEFAULT_CHECKPOINT_FLUSH_AFTER, 0, WRITEBACK_MAX_PENDING_FLUSHES, + NULL, NULL, NULL + }, + + { + {"wal_buffers", PGC_POSTMASTER, WAL_SETTINGS, + gettext_noop("Sets the number of disk-page buffers in shared memory for WAL."), + NULL, + GUC_UNIT_XBLOCKS + }, + &XLOGbuffers, + -1, -1, (INT_MAX / XLOG_BLCKSZ), + check_wal_buffers, NULL, NULL + }, + + { + {"wal_writer_delay", PGC_SIGHUP, WAL_SETTINGS, + gettext_noop("Time between WAL flushes performed in the WAL writer."), + NULL, + GUC_UNIT_MS + }, + &WalWriterDelay, + 200, 1, 10000, + NULL, NULL, NULL + }, + + { + {"wal_writer_flush_after", PGC_SIGHUP, WAL_SETTINGS, + gettext_noop("Amount of WAL written out by WAL writer that triggers a flush."), + NULL, + GUC_UNIT_XBLOCKS + }, + &WalWriterFlushAfter, + (1024 * 1024) / XLOG_BLCKSZ, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"wal_skip_threshold", PGC_USERSET, WAL_SETTINGS, + gettext_noop("Minimum size of new file to fsync instead of writing WAL."), + NULL, + GUC_UNIT_KB + }, + &wal_skip_threshold, + 2048, 0, MAX_KILOBYTES, + NULL, NULL, NULL + }, + + { + {"max_wal_senders", PGC_POSTMASTER, REPLICATION_SENDING, + gettext_noop("Sets the maximum number of simultaneously running WAL sender processes."), + NULL + }, + &max_wal_senders, + 10, 0, MAX_BACKENDS, + check_max_wal_senders, NULL, NULL + }, + + { + /* see max_wal_senders */ + {"max_replication_slots", PGC_POSTMASTER, REPLICATION_SENDING, + gettext_noop("Sets the maximum number of simultaneously defined replication slots."), + NULL + }, + &max_replication_slots, + 10, 0, MAX_BACKENDS /* XXX? */ , + NULL, NULL, NULL + }, + + { + {"max_slot_wal_keep_size", PGC_SIGHUP, REPLICATION_SENDING, + gettext_noop("Sets the maximum WAL size that can be reserved by replication slots."), + gettext_noop("Replication slots will be marked as failed, and segments released " + "for deletion or recycling, if this much space is occupied by WAL " + "on disk."), + GUC_UNIT_MB + }, + &max_slot_wal_keep_size_mb, + -1, -1, MAX_KILOBYTES, + NULL, NULL, NULL + }, + + { + {"wal_sender_timeout", PGC_USERSET, REPLICATION_SENDING, + gettext_noop("Sets the maximum time to wait for WAL replication."), + NULL, + GUC_UNIT_MS + }, + &wal_sender_timeout, + 60 * 1000, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"commit_delay", PGC_SUSET, WAL_SETTINGS, + gettext_noop("Sets the delay in microseconds between transaction commit and " + "flushing WAL to disk."), + NULL + /* we have no microseconds designation, so can't supply units here */ + }, + &CommitDelay, + 0, 0, 100000, + NULL, NULL, NULL + }, + + { + {"commit_siblings", PGC_USERSET, WAL_SETTINGS, + gettext_noop("Sets the minimum number of concurrent open transactions " + "required before performing commit_delay."), + NULL + }, + &CommitSiblings, + 5, 0, 1000, + NULL, NULL, NULL + }, + + { + {"extra_float_digits", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the number of digits displayed for floating-point values."), + gettext_noop("This affects real, double precision, and geometric data types. " + "A zero or negative parameter value is added to the standard " + "number of digits (FLT_DIG or DBL_DIG as appropriate). " + "Any value greater than zero selects precise output mode.") + }, + &extra_float_digits, + 1, -15, 3, + NULL, NULL, NULL + }, + + { + {"log_min_duration_sample", PGC_SUSET, LOGGING_WHEN, + gettext_noop("Sets the minimum execution time above which " + "a sample of statements will be logged." + " Sampling is determined by log_statement_sample_rate."), + gettext_noop("Zero logs a sample of all queries. -1 turns this feature off."), + GUC_UNIT_MS + }, + &log_min_duration_sample, + -1, -1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"log_min_duration_statement", PGC_SUSET, LOGGING_WHEN, + gettext_noop("Sets the minimum execution time above which " + "all statements will be logged."), + gettext_noop("Zero prints all queries. -1 turns this feature off."), + GUC_UNIT_MS + }, + &log_min_duration_statement, + -1, -1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"log_autovacuum_min_duration", PGC_SIGHUP, LOGGING_WHAT, + gettext_noop("Sets the minimum execution time above which " + "autovacuum actions will be logged."), + gettext_noop("Zero prints all actions. -1 turns autovacuum logging off."), + GUC_UNIT_MS + }, + &Log_autovacuum_min_duration, + 600000, -1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"log_parameter_max_length", PGC_SUSET, LOGGING_WHAT, + gettext_noop("Sets the maximum length in bytes of data logged for bind " + "parameter values when logging statements."), + gettext_noop("-1 to print values in full."), + GUC_UNIT_BYTE + }, + &log_parameter_max_length, + -1, -1, INT_MAX / 2, + NULL, NULL, NULL + }, + + { + {"log_parameter_max_length_on_error", PGC_USERSET, LOGGING_WHAT, + gettext_noop("Sets the maximum length in bytes of data logged for bind " + "parameter values when logging statements, on error."), + gettext_noop("-1 to print values in full."), + GUC_UNIT_BYTE + }, + &log_parameter_max_length_on_error, + 0, -1, INT_MAX / 2, + NULL, NULL, NULL + }, + + { + {"bgwriter_delay", PGC_SIGHUP, RESOURCES_BGWRITER, + gettext_noop("Background writer sleep time between rounds."), + NULL, + GUC_UNIT_MS + }, + &BgWriterDelay, + 200, 10, 10000, + NULL, NULL, NULL + }, + + { + {"bgwriter_lru_maxpages", PGC_SIGHUP, RESOURCES_BGWRITER, + gettext_noop("Background writer maximum number of LRU pages to flush per round."), + NULL + }, + &bgwriter_lru_maxpages, + 100, 0, INT_MAX / 2, /* Same upper limit as shared_buffers */ + NULL, NULL, NULL + }, + + { + {"bgwriter_flush_after", PGC_SIGHUP, RESOURCES_BGWRITER, + gettext_noop("Number of pages after which previously performed writes are flushed to disk."), + NULL, + GUC_UNIT_BLOCKS + }, + &bgwriter_flush_after, + DEFAULT_BGWRITER_FLUSH_AFTER, 0, WRITEBACK_MAX_PENDING_FLUSHES, + NULL, NULL, NULL + }, + + { + {"effective_io_concurrency", + PGC_USERSET, + RESOURCES_ASYNCHRONOUS, + gettext_noop("Number of simultaneous requests that can be handled efficiently by the disk subsystem."), + NULL, + GUC_EXPLAIN + }, + &effective_io_concurrency, +#ifdef USE_PREFETCH + 1, +#else + 0, +#endif + 0, MAX_IO_CONCURRENCY, + check_effective_io_concurrency, NULL, NULL + }, + + { + {"maintenance_io_concurrency", + PGC_USERSET, + RESOURCES_ASYNCHRONOUS, + gettext_noop("A variant of effective_io_concurrency that is used for maintenance work."), + NULL, + GUC_EXPLAIN + }, + &maintenance_io_concurrency, +#ifdef USE_PREFETCH + 10, +#else + 0, +#endif + 0, MAX_IO_CONCURRENCY, + check_maintenance_io_concurrency, assign_maintenance_io_concurrency, + NULL + }, + + { + {"backend_flush_after", PGC_USERSET, RESOURCES_ASYNCHRONOUS, + gettext_noop("Number of pages after which previously performed writes are flushed to disk."), + NULL, + GUC_UNIT_BLOCKS + }, + &backend_flush_after, + DEFAULT_BACKEND_FLUSH_AFTER, 0, WRITEBACK_MAX_PENDING_FLUSHES, + NULL, NULL, NULL + }, + + { + {"max_worker_processes", + PGC_POSTMASTER, + RESOURCES_ASYNCHRONOUS, + gettext_noop("Maximum number of concurrent worker processes."), + NULL, + }, + &max_worker_processes, + 8, 0, MAX_BACKENDS, + check_max_worker_processes, NULL, NULL + }, + + { + {"max_logical_replication_workers", + PGC_POSTMASTER, + REPLICATION_SUBSCRIBERS, + gettext_noop("Maximum number of logical replication worker processes."), + NULL, + }, + &max_logical_replication_workers, + 4, 0, MAX_BACKENDS, + NULL, NULL, NULL + }, + + { + {"max_sync_workers_per_subscription", + PGC_SIGHUP, + REPLICATION_SUBSCRIBERS, + gettext_noop("Maximum number of table synchronization workers per subscription."), + NULL, + }, + &max_sync_workers_per_subscription, + 2, 0, MAX_BACKENDS, + NULL, NULL, NULL + }, + + { + {"log_rotation_age", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Sets the amount of time to wait before forcing " + "log file rotation."), + NULL, + GUC_UNIT_MIN + }, + &Log_RotationAge, + HOURS_PER_DAY * MINS_PER_HOUR, 0, INT_MAX / SECS_PER_MINUTE, + NULL, NULL, NULL + }, + + { + {"log_rotation_size", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Sets the maximum size a log file can reach before " + "being rotated."), + NULL, + GUC_UNIT_KB + }, + &Log_RotationSize, + 10 * 1024, 0, INT_MAX / 1024, + NULL, NULL, NULL + }, + + { + {"max_function_args", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the maximum number of function arguments."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &max_function_args, + FUNC_MAX_ARGS, FUNC_MAX_ARGS, FUNC_MAX_ARGS, + NULL, NULL, NULL + }, + + { + {"max_index_keys", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the maximum number of index keys."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &max_index_keys, + INDEX_MAX_KEYS, INDEX_MAX_KEYS, INDEX_MAX_KEYS, + NULL, NULL, NULL + }, + + { + {"max_identifier_length", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the maximum identifier length."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &max_identifier_length, + NAMEDATALEN - 1, NAMEDATALEN - 1, NAMEDATALEN - 1, + NULL, NULL, NULL + }, + + { + {"block_size", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the size of a disk block."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &block_size, + BLCKSZ, BLCKSZ, BLCKSZ, + NULL, NULL, NULL + }, + + { + {"segment_size", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the number of pages per disk file."), + NULL, + GUC_UNIT_BLOCKS | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &segment_size, + RELSEG_SIZE, RELSEG_SIZE, RELSEG_SIZE, + NULL, NULL, NULL + }, + + { + {"wal_block_size", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the block size in the write ahead log."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &wal_block_size, + XLOG_BLCKSZ, XLOG_BLCKSZ, XLOG_BLCKSZ, + NULL, NULL, NULL + }, + + { + {"wal_retrieve_retry_interval", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets the time to wait before retrying to retrieve WAL " + "after a failed attempt."), + NULL, + GUC_UNIT_MS + }, + &wal_retrieve_retry_interval, + 5000, 1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"wal_segment_size", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the size of write ahead log segments."), + NULL, + GUC_UNIT_BYTE | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_RUNTIME_COMPUTED + }, + &wal_segment_size, + DEFAULT_XLOG_SEG_SIZE, + WalSegMinSize, + WalSegMaxSize, + NULL, NULL, NULL + }, + + { + {"autovacuum_naptime", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Time to sleep between autovacuum runs."), + NULL, + GUC_UNIT_S + }, + &autovacuum_naptime, + 60, 1, INT_MAX / 1000, + NULL, NULL, NULL + }, + { + {"autovacuum_vacuum_threshold", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Minimum number of tuple updates or deletes prior to vacuum."), + NULL + }, + &autovacuum_vac_thresh, + 50, 0, INT_MAX, + NULL, NULL, NULL + }, + { + {"autovacuum_vacuum_insert_threshold", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Minimum number of tuple inserts prior to vacuum, or -1 to disable insert vacuums."), + NULL + }, + &autovacuum_vac_ins_thresh, + 1000, -1, INT_MAX, + NULL, NULL, NULL + }, + { + {"autovacuum_analyze_threshold", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Minimum number of tuple inserts, updates, or deletes prior to analyze."), + NULL + }, + &autovacuum_anl_thresh, + 50, 0, INT_MAX, + NULL, NULL, NULL + }, + { + /* see varsup.c for why this is PGC_POSTMASTER not PGC_SIGHUP */ + {"autovacuum_freeze_max_age", PGC_POSTMASTER, AUTOVACUUM, + gettext_noop("Age at which to autovacuum a table to prevent transaction ID wraparound."), + NULL + }, + &autovacuum_freeze_max_age, + + /* see vacuum_failsafe_age if you change the upper-limit value. */ + 200000000, 100000, 2000000000, + NULL, NULL, NULL + }, + { + /* see multixact.c for why this is PGC_POSTMASTER not PGC_SIGHUP */ + {"autovacuum_multixact_freeze_max_age", PGC_POSTMASTER, AUTOVACUUM, + gettext_noop("Multixact age at which to autovacuum a table to prevent multixact wraparound."), + NULL + }, + &autovacuum_multixact_freeze_max_age, + 400000000, 10000, 2000000000, + NULL, NULL, NULL + }, + { + /* see max_connections */ + {"autovacuum_max_workers", PGC_POSTMASTER, AUTOVACUUM, + gettext_noop("Sets the maximum number of simultaneously running autovacuum worker processes."), + NULL + }, + &autovacuum_max_workers, + 3, 1, MAX_BACKENDS, + check_autovacuum_max_workers, NULL, NULL + }, + + { + {"max_parallel_maintenance_workers", PGC_USERSET, RESOURCES_ASYNCHRONOUS, + gettext_noop("Sets the maximum number of parallel processes per maintenance operation."), + NULL + }, + &max_parallel_maintenance_workers, + 2, 0, 1024, + NULL, NULL, NULL + }, + + { + {"max_parallel_workers_per_gather", PGC_USERSET, RESOURCES_ASYNCHRONOUS, + gettext_noop("Sets the maximum number of parallel processes per executor node."), + NULL, + GUC_EXPLAIN + }, + &max_parallel_workers_per_gather, + 2, 0, MAX_PARALLEL_WORKER_LIMIT, + NULL, NULL, NULL + }, + + { + {"max_parallel_workers", PGC_USERSET, RESOURCES_ASYNCHRONOUS, + gettext_noop("Sets the maximum number of parallel workers that can be active at one time."), + NULL, + GUC_EXPLAIN + }, + &max_parallel_workers, + 8, 0, MAX_PARALLEL_WORKER_LIMIT, + NULL, NULL, NULL + }, + + { + {"autovacuum_work_mem", PGC_SIGHUP, RESOURCES_MEM, + gettext_noop("Sets the maximum memory to be used by each autovacuum worker process."), + NULL, + GUC_UNIT_KB + }, + &autovacuum_work_mem, + -1, -1, MAX_KILOBYTES, + check_autovacuum_work_mem, NULL, NULL + }, + + { + {"old_snapshot_threshold", PGC_POSTMASTER, RESOURCES_ASYNCHRONOUS, + gettext_noop("Time before a snapshot is too old to read pages changed after the snapshot was taken."), + gettext_noop("A value of -1 disables this feature."), + GUC_UNIT_MIN + }, + &old_snapshot_threshold, + -1, -1, MINS_PER_HOUR * HOURS_PER_DAY * 60, + NULL, NULL, NULL + }, + + { + {"tcp_keepalives_idle", PGC_USERSET, CONN_AUTH_TCP, + gettext_noop("Time between issuing TCP keepalives."), + gettext_noop("A value of 0 uses the system default."), + GUC_UNIT_S + }, + &tcp_keepalives_idle, + 0, 0, INT_MAX, + NULL, assign_tcp_keepalives_idle, show_tcp_keepalives_idle + }, + + { + {"tcp_keepalives_interval", PGC_USERSET, CONN_AUTH_TCP, + gettext_noop("Time between TCP keepalive retransmits."), + gettext_noop("A value of 0 uses the system default."), + GUC_UNIT_S + }, + &tcp_keepalives_interval, + 0, 0, INT_MAX, + NULL, assign_tcp_keepalives_interval, show_tcp_keepalives_interval + }, + + { + {"ssl_renegotiation_limit", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("SSL renegotiation is no longer supported; this can only be 0."), + NULL, + GUC_NO_SHOW_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE, + }, + &ssl_renegotiation_limit, + 0, 0, 0, + NULL, NULL, NULL + }, + + { + {"tcp_keepalives_count", PGC_USERSET, CONN_AUTH_TCP, + gettext_noop("Maximum number of TCP keepalive retransmits."), + gettext_noop("This controls the number of consecutive keepalive retransmits that can be " + "lost before a connection is considered dead. A value of 0 uses the " + "system default."), + }, + &tcp_keepalives_count, + 0, 0, INT_MAX, + NULL, assign_tcp_keepalives_count, show_tcp_keepalives_count + }, + + { + {"gin_fuzzy_search_limit", PGC_USERSET, CLIENT_CONN_OTHER, + gettext_noop("Sets the maximum allowed result for exact search by GIN."), + NULL, + 0 + }, + &GinFuzzySearchLimit, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { + {"effective_cache_size", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the planner's assumption about the total size of the data caches."), + gettext_noop("That is, the total size of the caches (kernel cache and shared buffers) used for PostgreSQL data files. " + "This is measured in disk pages, which are normally 8 kB each."), + GUC_UNIT_BLOCKS | GUC_EXPLAIN, + }, + &effective_cache_size, + DEFAULT_EFFECTIVE_CACHE_SIZE, 1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"min_parallel_table_scan_size", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the minimum amount of table data for a parallel scan."), + gettext_noop("If the planner estimates that it will read a number of table pages too small to reach this limit, a parallel scan will not be considered."), + GUC_UNIT_BLOCKS | GUC_EXPLAIN, + }, + &min_parallel_table_scan_size, + (8 * 1024 * 1024) / BLCKSZ, 0, INT_MAX / 3, + NULL, NULL, NULL + }, + + { + {"min_parallel_index_scan_size", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the minimum amount of index data for a parallel scan."), + gettext_noop("If the planner estimates that it will read a number of index pages too small to reach this limit, a parallel scan will not be considered."), + GUC_UNIT_BLOCKS | GUC_EXPLAIN, + }, + &min_parallel_index_scan_size, + (512 * 1024) / BLCKSZ, 0, INT_MAX / 3, + NULL, NULL, NULL + }, + + { + /* Can't be set in postgresql.conf */ + {"server_version_num", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the server version as an integer."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &server_version_num, + PG_VERSION_NUM, PG_VERSION_NUM, PG_VERSION_NUM, + NULL, NULL, NULL + }, + + { + {"log_temp_files", PGC_SUSET, LOGGING_WHAT, + gettext_noop("Log the use of temporary files larger than this number of kilobytes."), + gettext_noop("Zero logs all files. The default is -1 (turning this feature off)."), + GUC_UNIT_KB + }, + &log_temp_files, + -1, -1, INT_MAX, + NULL, NULL, NULL + }, + + { + {"track_activity_query_size", PGC_POSTMASTER, STATS_CUMULATIVE, + gettext_noop("Sets the size reserved for pg_stat_activity.query, in bytes."), + NULL, + GUC_UNIT_BYTE + }, + &pgstat_track_activity_query_size, + 1024, 100, 1048576, + NULL, NULL, NULL + }, + + { + {"gin_pending_list_limit", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the maximum size of the pending list for GIN index."), + NULL, + GUC_UNIT_KB + }, + &gin_pending_list_limit, + 4096, 64, MAX_KILOBYTES, + NULL, NULL, NULL + }, + + { + {"tcp_user_timeout", PGC_USERSET, CONN_AUTH_TCP, + gettext_noop("TCP user timeout."), + gettext_noop("A value of 0 uses the system default."), + GUC_UNIT_MS + }, + &tcp_user_timeout, + 0, 0, INT_MAX, + NULL, assign_tcp_user_timeout, show_tcp_user_timeout + }, + + { + {"huge_page_size", PGC_POSTMASTER, RESOURCES_MEM, + gettext_noop("The size of huge page that should be requested."), + NULL, + GUC_UNIT_KB + }, + &huge_page_size, + 0, 0, INT_MAX, + check_huge_page_size, NULL, NULL + }, + + { + {"debug_discard_caches", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Aggressively flush system caches for debugging purposes."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &debug_discard_caches, +#ifdef DISCARD_CACHES_ENABLED + /* Set default based on older compile-time-only cache clobber macros */ +#if defined(CLOBBER_CACHE_RECURSIVELY) + 3, +#elif defined(CLOBBER_CACHE_ALWAYS) + 1, +#else + 0, +#endif + 0, 5, +#else /* not DISCARD_CACHES_ENABLED */ + 0, 0, 0, +#endif /* not DISCARD_CACHES_ENABLED */ + NULL, NULL, NULL + }, + + { + {"client_connection_check_interval", PGC_USERSET, CONN_AUTH_TCP, + gettext_noop("Sets the time interval between checks for disconnection while running queries."), + NULL, + GUC_UNIT_MS + }, + &client_connection_check_interval, + 0, 0, INT_MAX, + check_client_connection_check_interval, NULL, NULL + }, + + { + {"log_startup_progress_interval", PGC_SIGHUP, LOGGING_WHEN, + gettext_noop("Time between progress updates for " + "long-running startup operations."), + gettext_noop("0 turns this feature off."), + GUC_UNIT_MS, + }, + &log_startup_progress_interval, + 10000, 0, INT_MAX, + NULL, NULL, NULL + }, + + /* End-of-list marker */ + { + {NULL, 0, 0, NULL, NULL}, NULL, 0, 0, 0, NULL, NULL, NULL + } +}; + + +struct config_real ConfigureNamesReal[] = +{ + { + {"seq_page_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the planner's estimate of the cost of a " + "sequentially fetched disk page."), + NULL, + GUC_EXPLAIN + }, + &seq_page_cost, + DEFAULT_SEQ_PAGE_COST, 0, DBL_MAX, + NULL, NULL, NULL + }, + { + {"random_page_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the planner's estimate of the cost of a " + "nonsequentially fetched disk page."), + NULL, + GUC_EXPLAIN + }, + &random_page_cost, + DEFAULT_RANDOM_PAGE_COST, 0, DBL_MAX, + NULL, NULL, NULL + }, + { + {"cpu_tuple_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the planner's estimate of the cost of " + "processing each tuple (row)."), + NULL, + GUC_EXPLAIN + }, + &cpu_tuple_cost, + DEFAULT_CPU_TUPLE_COST, 0, DBL_MAX, + NULL, NULL, NULL + }, + { + {"cpu_index_tuple_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the planner's estimate of the cost of " + "processing each index entry during an index scan."), + NULL, + GUC_EXPLAIN + }, + &cpu_index_tuple_cost, + DEFAULT_CPU_INDEX_TUPLE_COST, 0, DBL_MAX, + NULL, NULL, NULL + }, + { + {"cpu_operator_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the planner's estimate of the cost of " + "processing each operator or function call."), + NULL, + GUC_EXPLAIN + }, + &cpu_operator_cost, + DEFAULT_CPU_OPERATOR_COST, 0, DBL_MAX, + NULL, NULL, NULL + }, + { + {"parallel_tuple_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the planner's estimate of the cost of " + "passing each tuple (row) from worker to leader backend."), + NULL, + GUC_EXPLAIN + }, + ¶llel_tuple_cost, + DEFAULT_PARALLEL_TUPLE_COST, 0, DBL_MAX, + NULL, NULL, NULL + }, + { + {"parallel_setup_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Sets the planner's estimate of the cost of " + "starting up worker processes for parallel query."), + NULL, + GUC_EXPLAIN + }, + ¶llel_setup_cost, + DEFAULT_PARALLEL_SETUP_COST, 0, DBL_MAX, + NULL, NULL, NULL + }, + + { + {"jit_above_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Perform JIT compilation if query is more expensive."), + gettext_noop("-1 disables JIT compilation."), + GUC_EXPLAIN + }, + &jit_above_cost, + 100000, -1, DBL_MAX, + NULL, NULL, NULL + }, + + { + {"jit_optimize_above_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Optimize JIT-compiled functions if query is more expensive."), + gettext_noop("-1 disables optimization."), + GUC_EXPLAIN + }, + &jit_optimize_above_cost, + 500000, -1, DBL_MAX, + NULL, NULL, NULL + }, + + { + {"jit_inline_above_cost", PGC_USERSET, QUERY_TUNING_COST, + gettext_noop("Perform JIT inlining if query is more expensive."), + gettext_noop("-1 disables inlining."), + GUC_EXPLAIN + }, + &jit_inline_above_cost, + 500000, -1, DBL_MAX, + NULL, NULL, NULL + }, + + { + {"cursor_tuple_fraction", PGC_USERSET, QUERY_TUNING_OTHER, + gettext_noop("Sets the planner's estimate of the fraction of " + "a cursor's rows that will be retrieved."), + NULL, + GUC_EXPLAIN + }, + &cursor_tuple_fraction, + DEFAULT_CURSOR_TUPLE_FRACTION, 0.0, 1.0, + NULL, NULL, NULL + }, + + { + {"recursive_worktable_factor", PGC_USERSET, QUERY_TUNING_OTHER, + gettext_noop("Sets the planner's estimate of the average size " + "of a recursive query's working table."), + NULL, + GUC_EXPLAIN + }, + &recursive_worktable_factor, + DEFAULT_RECURSIVE_WORKTABLE_FACTOR, 0.001, 1000000.0, + NULL, NULL, NULL + }, + + { + {"geqo_selection_bias", PGC_USERSET, QUERY_TUNING_GEQO, + gettext_noop("GEQO: selective pressure within the population."), + NULL, + GUC_EXPLAIN + }, + &Geqo_selection_bias, + DEFAULT_GEQO_SELECTION_BIAS, + MIN_GEQO_SELECTION_BIAS, MAX_GEQO_SELECTION_BIAS, + NULL, NULL, NULL + }, + { + {"geqo_seed", PGC_USERSET, QUERY_TUNING_GEQO, + gettext_noop("GEQO: seed for random path selection."), + NULL, + GUC_EXPLAIN + }, + &Geqo_seed, + 0.0, 0.0, 1.0, + NULL, NULL, NULL + }, + + { + {"hash_mem_multiplier", PGC_USERSET, RESOURCES_MEM, + gettext_noop("Multiple of work_mem to use for hash tables."), + NULL, + GUC_EXPLAIN + }, + &hash_mem_multiplier, + 2.0, 1.0, 1000.0, + NULL, NULL, NULL + }, + + { + {"bgwriter_lru_multiplier", PGC_SIGHUP, RESOURCES_BGWRITER, + gettext_noop("Multiple of the average buffer usage to free per round."), + NULL + }, + &bgwriter_lru_multiplier, + 2.0, 0.0, 10.0, + NULL, NULL, NULL + }, + + { + {"seed", PGC_USERSET, UNGROUPED, + gettext_noop("Sets the seed for random-number generation."), + NULL, + GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &phony_random_seed, + 0.0, -1.0, 1.0, + check_random_seed, assign_random_seed, show_random_seed + }, + + { + {"vacuum_cost_delay", PGC_USERSET, RESOURCES_VACUUM_DELAY, + gettext_noop("Vacuum cost delay in milliseconds."), + NULL, + GUC_UNIT_MS + }, + &VacuumCostDelay, + 0, 0, 100, + NULL, NULL, NULL + }, + + { + {"autovacuum_vacuum_cost_delay", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Vacuum cost delay in milliseconds, for autovacuum."), + NULL, + GUC_UNIT_MS + }, + &autovacuum_vac_cost_delay, + 2, -1, 100, + NULL, NULL, NULL + }, + + { + {"autovacuum_vacuum_scale_factor", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Number of tuple updates or deletes prior to vacuum as a fraction of reltuples."), + NULL + }, + &autovacuum_vac_scale, + 0.2, 0.0, 100.0, + NULL, NULL, NULL + }, + + { + {"autovacuum_vacuum_insert_scale_factor", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Number of tuple inserts prior to vacuum as a fraction of reltuples."), + NULL + }, + &autovacuum_vac_ins_scale, + 0.2, 0.0, 100.0, + NULL, NULL, NULL + }, + + { + {"autovacuum_analyze_scale_factor", PGC_SIGHUP, AUTOVACUUM, + gettext_noop("Number of tuple inserts, updates, or deletes prior to analyze as a fraction of reltuples."), + NULL + }, + &autovacuum_anl_scale, + 0.1, 0.0, 100.0, + NULL, NULL, NULL + }, + + { + {"checkpoint_completion_target", PGC_SIGHUP, WAL_CHECKPOINTS, + gettext_noop("Time spent flushing dirty buffers during checkpoint, as fraction of checkpoint interval."), + NULL + }, + &CheckPointCompletionTarget, + 0.9, 0.0, 1.0, + NULL, NULL, NULL + }, + + { + {"log_statement_sample_rate", PGC_SUSET, LOGGING_WHEN, + gettext_noop("Fraction of statements exceeding log_min_duration_sample to be logged."), + gettext_noop("Use a value between 0.0 (never log) and 1.0 (always log).") + }, + &log_statement_sample_rate, + 1.0, 0.0, 1.0, + NULL, NULL, NULL + }, + + { + {"log_transaction_sample_rate", PGC_SUSET, LOGGING_WHEN, + gettext_noop("Sets the fraction of transactions from which to log all statements."), + gettext_noop("Use a value between 0.0 (never log) and 1.0 (log all " + "statements for all transactions).") + }, + &log_xact_sample_rate, + 0.0, 0.0, 1.0, + NULL, NULL, NULL + }, + + /* End-of-list marker */ + { + {NULL, 0, 0, NULL, NULL}, NULL, 0.0, 0.0, 0.0, NULL, NULL, NULL + } +}; + + +struct config_string ConfigureNamesString[] = +{ + { + {"archive_command", PGC_SIGHUP, WAL_ARCHIVING, + gettext_noop("Sets the shell command that will be called to archive a WAL file."), + gettext_noop("This is used only if \"archive_library\" is not set.") + }, + &XLogArchiveCommand, + "", + NULL, NULL, show_archive_command + }, + + { + {"archive_library", PGC_SIGHUP, WAL_ARCHIVING, + gettext_noop("Sets the library that will be called to archive a WAL file."), + gettext_noop("An empty string indicates that \"archive_command\" should be used.") + }, + &XLogArchiveLibrary, + "", + NULL, NULL, NULL + }, + + { + {"restore_command", PGC_SIGHUP, WAL_ARCHIVE_RECOVERY, + gettext_noop("Sets the shell command that will be called to retrieve an archived WAL file."), + NULL + }, + &recoveryRestoreCommand, + "", + NULL, NULL, NULL + }, + + { + {"archive_cleanup_command", PGC_SIGHUP, WAL_ARCHIVE_RECOVERY, + gettext_noop("Sets the shell command that will be executed at every restart point."), + NULL + }, + &archiveCleanupCommand, + "", + NULL, NULL, NULL + }, + + { + {"recovery_end_command", PGC_SIGHUP, WAL_ARCHIVE_RECOVERY, + gettext_noop("Sets the shell command that will be executed once at the end of recovery."), + NULL + }, + &recoveryEndCommand, + "", + NULL, NULL, NULL + }, + + { + {"recovery_target_timeline", PGC_POSTMASTER, WAL_RECOVERY_TARGET, + gettext_noop("Specifies the timeline to recover into."), + NULL + }, + &recovery_target_timeline_string, + "latest", + check_recovery_target_timeline, assign_recovery_target_timeline, NULL + }, + + { + {"recovery_target", PGC_POSTMASTER, WAL_RECOVERY_TARGET, + gettext_noop("Set to \"immediate\" to end recovery as soon as a consistent state is reached."), + NULL + }, + &recovery_target_string, + "", + check_recovery_target, assign_recovery_target, NULL + }, + { + {"recovery_target_xid", PGC_POSTMASTER, WAL_RECOVERY_TARGET, + gettext_noop("Sets the transaction ID up to which recovery will proceed."), + NULL + }, + &recovery_target_xid_string, + "", + check_recovery_target_xid, assign_recovery_target_xid, NULL + }, + { + {"recovery_target_time", PGC_POSTMASTER, WAL_RECOVERY_TARGET, + gettext_noop("Sets the time stamp up to which recovery will proceed."), + NULL + }, + &recovery_target_time_string, + "", + check_recovery_target_time, assign_recovery_target_time, NULL + }, + { + {"recovery_target_name", PGC_POSTMASTER, WAL_RECOVERY_TARGET, + gettext_noop("Sets the named restore point up to which recovery will proceed."), + NULL + }, + &recovery_target_name_string, + "", + check_recovery_target_name, assign_recovery_target_name, NULL + }, + { + {"recovery_target_lsn", PGC_POSTMASTER, WAL_RECOVERY_TARGET, + gettext_noop("Sets the LSN of the write-ahead log location up to which recovery will proceed."), + NULL + }, + &recovery_target_lsn_string, + "", + check_recovery_target_lsn, assign_recovery_target_lsn, NULL + }, + + { + {"promote_trigger_file", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Specifies a file name whose presence ends recovery in the standby."), + NULL + }, + &PromoteTriggerFile, + "", + NULL, NULL, NULL + }, + + { + {"primary_conninfo", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets the connection string to be used to connect to the sending server."), + NULL, + GUC_SUPERUSER_ONLY + }, + &PrimaryConnInfo, + "", + NULL, NULL, NULL + }, + + { + {"primary_slot_name", PGC_SIGHUP, REPLICATION_STANDBY, + gettext_noop("Sets the name of the replication slot to use on the sending server."), + NULL + }, + &PrimarySlotName, + "", + check_primary_slot_name, NULL, NULL + }, + + { + {"client_encoding", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the client's character set encoding."), + NULL, + GUC_IS_NAME | GUC_REPORT + }, + &client_encoding_string, + "SQL_ASCII", + check_client_encoding, assign_client_encoding, NULL + }, + + { + {"log_line_prefix", PGC_SIGHUP, LOGGING_WHAT, + gettext_noop("Controls information prefixed to each log line."), + gettext_noop("If blank, no prefix is used.") + }, + &Log_line_prefix, + "%m [%p] ", + NULL, NULL, NULL + }, + + { + {"log_timezone", PGC_SIGHUP, LOGGING_WHAT, + gettext_noop("Sets the time zone to use in log messages."), + NULL + }, + &log_timezone_string, + "GMT", + check_log_timezone, assign_log_timezone, show_log_timezone + }, + + { + {"DateStyle", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the display format for date and time values."), + gettext_noop("Also controls interpretation of ambiguous " + "date inputs."), + GUC_LIST_INPUT | GUC_REPORT + }, + &datestyle_string, + "ISO, MDY", + check_datestyle, assign_datestyle, NULL + }, + + { + {"default_table_access_method", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the default table access method for new tables."), + NULL, + GUC_IS_NAME + }, + &default_table_access_method, + DEFAULT_TABLE_ACCESS_METHOD, + check_default_table_access_method, NULL, NULL + }, + + { + {"default_tablespace", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the default tablespace to create tables and indexes in."), + gettext_noop("An empty string selects the database's default tablespace."), + GUC_IS_NAME + }, + &default_tablespace, + "", + check_default_tablespace, NULL, NULL + }, + + { + {"temp_tablespaces", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the tablespace(s) to use for temporary tables and sort files."), + NULL, + GUC_LIST_INPUT | GUC_LIST_QUOTE + }, + &temp_tablespaces, + "", + check_temp_tablespaces, assign_temp_tablespaces, NULL + }, + + { + {"dynamic_library_path", PGC_SUSET, CLIENT_CONN_OTHER, + gettext_noop("Sets the path for dynamically loadable modules."), + gettext_noop("If a dynamically loadable module needs to be opened and " + "the specified name does not have a directory component (i.e., the " + "name does not contain a slash), the system will search this path for " + "the specified file."), + GUC_SUPERUSER_ONLY + }, + &Dynamic_library_path, + "$libdir", + NULL, NULL, NULL + }, + + { + {"krb_server_keyfile", PGC_SIGHUP, CONN_AUTH_AUTH, + gettext_noop("Sets the location of the Kerberos server key file."), + NULL, + GUC_SUPERUSER_ONLY + }, + &pg_krb_server_keyfile, + PG_KRB_SRVTAB, + NULL, NULL, NULL + }, + + { + {"bonjour_name", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Sets the Bonjour service name."), + NULL + }, + &bonjour_name, + "", + NULL, NULL, NULL + }, + + /* See main.c about why defaults for LC_foo are not all alike */ + + { + {"lc_collate", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the collation order locale."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &locale_collate, + "C", + NULL, NULL, NULL + }, + + { + {"lc_ctype", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the character classification and case conversion locale."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &locale_ctype, + "C", + NULL, NULL, NULL + }, + + { + {"lc_messages", PGC_SUSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the language in which messages are displayed."), + NULL + }, + &locale_messages, + "", + check_locale_messages, assign_locale_messages, NULL + }, + + { + {"lc_monetary", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the locale for formatting monetary amounts."), + NULL + }, + &locale_monetary, + "C", + check_locale_monetary, assign_locale_monetary, NULL + }, + + { + {"lc_numeric", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the locale for formatting numbers."), + NULL + }, + &locale_numeric, + "C", + check_locale_numeric, assign_locale_numeric, NULL + }, + + { + {"lc_time", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the locale for formatting date and time values."), + NULL + }, + &locale_time, + "C", + check_locale_time, assign_locale_time, NULL + }, + + { + {"session_preload_libraries", PGC_SUSET, CLIENT_CONN_PRELOAD, + gettext_noop("Lists shared libraries to preload into each backend."), + NULL, + GUC_LIST_INPUT | GUC_LIST_QUOTE | GUC_SUPERUSER_ONLY + }, + &session_preload_libraries_string, + "", + NULL, NULL, NULL + }, + + { + {"shared_preload_libraries", PGC_POSTMASTER, CLIENT_CONN_PRELOAD, + gettext_noop("Lists shared libraries to preload into server."), + NULL, + GUC_LIST_INPUT | GUC_LIST_QUOTE | GUC_SUPERUSER_ONLY + }, + &shared_preload_libraries_string, + "", + NULL, NULL, NULL + }, + + { + {"local_preload_libraries", PGC_USERSET, CLIENT_CONN_PRELOAD, + gettext_noop("Lists unprivileged shared libraries to preload into each backend."), + NULL, + GUC_LIST_INPUT | GUC_LIST_QUOTE + }, + &local_preload_libraries_string, + "", + NULL, NULL, NULL + }, + + { + {"search_path", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the schema search order for names that are not schema-qualified."), + NULL, + GUC_LIST_INPUT | GUC_LIST_QUOTE | GUC_EXPLAIN + }, + &namespace_search_path, + "\"$user\", public", + check_search_path, assign_search_path, NULL + }, + + { + /* Can't be set in postgresql.conf */ + {"server_encoding", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the server (database) character set encoding."), + NULL, + GUC_IS_NAME | GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &server_encoding_string, + "SQL_ASCII", + NULL, NULL, NULL + }, + + { + /* Can't be set in postgresql.conf */ + {"server_version", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the server version."), + NULL, + GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &server_version_string, + PG_VERSION, + NULL, NULL, NULL + }, + + { + /* Not for general use --- used by SET ROLE */ + {"role", PGC_USERSET, UNGROUPED, + gettext_noop("Sets the current role."), + NULL, + GUC_IS_NAME | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_NOT_WHILE_SEC_REST + }, + &role_string, + "none", + check_role, assign_role, show_role + }, + + { + /* Not for general use --- used by SET SESSION AUTHORIZATION */ + {"session_authorization", PGC_USERSET, UNGROUPED, + gettext_noop("Sets the session user name."), + NULL, + GUC_IS_NAME | GUC_REPORT | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_NOT_WHILE_SEC_REST + }, + &session_authorization_string, + NULL, + check_session_authorization, assign_session_authorization, NULL + }, + + { + {"log_destination", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Sets the destination for server log output."), + gettext_noop("Valid values are combinations of \"stderr\", " + "\"syslog\", \"csvlog\", \"jsonlog\", and \"eventlog\", " + "depending on the platform."), + GUC_LIST_INPUT + }, + &Log_destination_string, + "stderr", + check_log_destination, assign_log_destination, NULL + }, + { + {"log_directory", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Sets the destination directory for log files."), + gettext_noop("Can be specified as relative to the data directory " + "or as absolute path."), + GUC_SUPERUSER_ONLY + }, + &Log_directory, + "log", + check_canonical_path, NULL, NULL + }, + { + {"log_filename", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Sets the file name pattern for log files."), + NULL, + GUC_SUPERUSER_ONLY + }, + &Log_filename, + "postgresql-%Y-%m-%d_%H%M%S.log", + NULL, NULL, NULL + }, + + { + {"syslog_ident", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Sets the program name used to identify PostgreSQL " + "messages in syslog."), + NULL + }, + &syslog_ident_str, + "postgres", + NULL, assign_syslog_ident, NULL + }, + + { + {"event_source", PGC_POSTMASTER, LOGGING_WHERE, + gettext_noop("Sets the application name used to identify " + "PostgreSQL messages in the event log."), + NULL + }, + &event_source, + DEFAULT_EVENT_SOURCE, + NULL, NULL, NULL + }, + + { + {"TimeZone", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the time zone for displaying and interpreting time stamps."), + NULL, + GUC_REPORT + }, + &timezone_string, + "GMT", + check_timezone, assign_timezone, show_timezone + }, + { + {"timezone_abbreviations", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Selects a file of time zone abbreviations."), + NULL + }, + &timezone_abbreviations_string, + NULL, + check_timezone_abbreviations, assign_timezone_abbreviations, NULL + }, + + { + {"unix_socket_group", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Sets the owning group of the Unix-domain socket."), + gettext_noop("The owning user of the socket is always the user " + "that starts the server.") + }, + &Unix_socket_group, + "", + NULL, NULL, NULL + }, + + { + {"unix_socket_directories", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Sets the directories where Unix-domain sockets will be created."), + NULL, + GUC_LIST_INPUT | GUC_LIST_QUOTE | GUC_SUPERUSER_ONLY + }, + &Unix_socket_directories, + DEFAULT_PGSOCKET_DIR, + NULL, NULL, NULL + }, + + { + {"listen_addresses", PGC_POSTMASTER, CONN_AUTH_SETTINGS, + gettext_noop("Sets the host name or IP address(es) to listen to."), + NULL, + GUC_LIST_INPUT + }, + &ListenAddresses, + "localhost", + NULL, NULL, NULL + }, + + { + /* + * Can't be set by ALTER SYSTEM as it can lead to recursive definition + * of data_directory. + */ + {"data_directory", PGC_POSTMASTER, FILE_LOCATIONS, + gettext_noop("Sets the server's data directory."), + NULL, + GUC_SUPERUSER_ONLY | GUC_DISALLOW_IN_AUTO_FILE + }, + &data_directory, + NULL, + NULL, NULL, NULL + }, + + { + {"config_file", PGC_POSTMASTER, FILE_LOCATIONS, + gettext_noop("Sets the server's main configuration file."), + NULL, + GUC_DISALLOW_IN_FILE | GUC_SUPERUSER_ONLY + }, + &ConfigFileName, + NULL, + NULL, NULL, NULL + }, + + { + {"hba_file", PGC_POSTMASTER, FILE_LOCATIONS, + gettext_noop("Sets the server's \"hba\" configuration file."), + NULL, + GUC_SUPERUSER_ONLY + }, + &HbaFileName, + NULL, + NULL, NULL, NULL + }, + + { + {"ident_file", PGC_POSTMASTER, FILE_LOCATIONS, + gettext_noop("Sets the server's \"ident\" configuration file."), + NULL, + GUC_SUPERUSER_ONLY + }, + &IdentFileName, + NULL, + NULL, NULL, NULL + }, + + { + {"external_pid_file", PGC_POSTMASTER, FILE_LOCATIONS, + gettext_noop("Writes the postmaster PID to the specified file."), + NULL, + GUC_SUPERUSER_ONLY + }, + &external_pid_file, + NULL, + check_canonical_path, NULL, NULL + }, + + { + {"ssl_library", PGC_INTERNAL, PRESET_OPTIONS, + gettext_noop("Shows the name of the SSL library."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &ssl_library, +#ifdef USE_SSL + "OpenSSL", +#else + "", +#endif + NULL, NULL, NULL + }, + + { + {"ssl_cert_file", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Location of the SSL server certificate file."), + NULL + }, + &ssl_cert_file, + "server.crt", + NULL, NULL, NULL + }, + + { + {"ssl_key_file", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Location of the SSL server private key file."), + NULL + }, + &ssl_key_file, + "server.key", + NULL, NULL, NULL + }, + + { + {"ssl_ca_file", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Location of the SSL certificate authority file."), + NULL + }, + &ssl_ca_file, + "", + NULL, NULL, NULL + }, + + { + {"ssl_crl_file", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Location of the SSL certificate revocation list file."), + NULL + }, + &ssl_crl_file, + "", + NULL, NULL, NULL + }, + + { + {"ssl_crl_dir", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Location of the SSL certificate revocation list directory."), + NULL + }, + &ssl_crl_dir, + "", + NULL, NULL, NULL + }, + + { + {"synchronous_standby_names", PGC_SIGHUP, REPLICATION_PRIMARY, + gettext_noop("Number of synchronous standbys and list of names of potential synchronous ones."), + NULL, + GUC_LIST_INPUT + }, + &SyncRepStandbyNames, + "", + check_synchronous_standby_names, assign_synchronous_standby_names, NULL + }, + + { + {"default_text_search_config", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets default text search configuration."), + NULL + }, + &TSCurrentConfig, + "pg_catalog.simple", + check_default_text_search_config, assign_default_text_search_config, NULL + }, + + { + {"ssl_ciphers", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Sets the list of allowed SSL ciphers."), + NULL, + GUC_SUPERUSER_ONLY + }, + &SSLCipherSuites, +#ifdef USE_OPENSSL + "HIGH:MEDIUM:+3DES:!aNULL", +#else + "none", +#endif + NULL, NULL, NULL + }, + + { + {"ssl_ecdh_curve", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Sets the curve to use for ECDH."), + NULL, + GUC_SUPERUSER_ONLY + }, + &SSLECDHCurve, +#ifdef USE_SSL + "prime256v1", +#else + "none", +#endif + NULL, NULL, NULL + }, + + { + {"ssl_dh_params_file", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Location of the SSL DH parameters file."), + NULL, + GUC_SUPERUSER_ONLY + }, + &ssl_dh_params_file, + "", + NULL, NULL, NULL + }, + + { + {"ssl_passphrase_command", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Command to obtain passphrases for SSL."), + NULL, + GUC_SUPERUSER_ONLY + }, + &ssl_passphrase_command, + "", + NULL, NULL, NULL + }, + + { + {"application_name", PGC_USERSET, LOGGING_WHAT, + gettext_noop("Sets the application name to be reported in statistics and logs."), + NULL, + GUC_IS_NAME | GUC_REPORT | GUC_NOT_IN_SAMPLE + }, + &application_name, + "", + check_application_name, assign_application_name, NULL + }, + + { + {"cluster_name", PGC_POSTMASTER, PROCESS_TITLE, + gettext_noop("Sets the name of the cluster, which is included in the process title."), + NULL, + GUC_IS_NAME + }, + &cluster_name, + "", + check_cluster_name, NULL, NULL + }, + + { + {"wal_consistency_checking", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Sets the WAL resource managers for which WAL consistency checks are done."), + gettext_noop("Full-page images will be logged for all data blocks and cross-checked against the results of WAL replay."), + GUC_LIST_INPUT | GUC_NOT_IN_SAMPLE + }, + &wal_consistency_checking_string, + "", + check_wal_consistency_checking, assign_wal_consistency_checking, NULL + }, + + { + {"jit_provider", PGC_POSTMASTER, CLIENT_CONN_PRELOAD, + gettext_noop("JIT provider to use."), + NULL, + GUC_SUPERUSER_ONLY + }, + &jit_provider, + "llvmjit", + NULL, NULL, NULL + }, + + { + {"backtrace_functions", PGC_SUSET, DEVELOPER_OPTIONS, + gettext_noop("Log backtrace for errors in these functions."), + NULL, + GUC_NOT_IN_SAMPLE + }, + &backtrace_functions, + "", + check_backtrace_functions, assign_backtrace_functions, NULL + }, + + /* End-of-list marker */ + { + {NULL, 0, 0, NULL, NULL}, NULL, NULL, NULL, NULL, NULL + } +}; + + +struct config_enum ConfigureNamesEnum[] = +{ + { + {"backslash_quote", PGC_USERSET, COMPAT_OPTIONS_PREVIOUS, + gettext_noop("Sets whether \"\\'\" is allowed in string literals."), + NULL + }, + &backslash_quote, + BACKSLASH_QUOTE_SAFE_ENCODING, backslash_quote_options, + NULL, NULL, NULL + }, + + { + {"bytea_output", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the output format for bytea."), + NULL + }, + &bytea_output, + BYTEA_OUTPUT_HEX, bytea_output_options, + NULL, NULL, NULL + }, + + { + {"client_min_messages", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the message levels that are sent to the client."), + gettext_noop("Each level includes all the levels that follow it. The later" + " the level, the fewer messages are sent.") + }, + &client_min_messages, + NOTICE, client_message_level_options, + NULL, NULL, NULL + }, + + { + {"compute_query_id", PGC_SUSET, STATS_MONITORING, + gettext_noop("Enables in-core computation of query identifiers."), + NULL + }, + &compute_query_id, + COMPUTE_QUERY_ID_AUTO, compute_query_id_options, + NULL, NULL, NULL + }, + + { + {"constraint_exclusion", PGC_USERSET, QUERY_TUNING_OTHER, + gettext_noop("Enables the planner to use constraints to optimize queries."), + gettext_noop("Table scans will be skipped if their constraints" + " guarantee that no rows match the query."), + GUC_EXPLAIN + }, + &constraint_exclusion, + CONSTRAINT_EXCLUSION_PARTITION, constraint_exclusion_options, + NULL, NULL, NULL + }, + + { + {"default_toast_compression", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the default compression method for compressible values."), + NULL + }, + &default_toast_compression, + TOAST_PGLZ_COMPRESSION, + default_toast_compression_options, + NULL, NULL, NULL + }, + + { + {"default_transaction_isolation", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the transaction isolation level of each new transaction."), + NULL + }, + &DefaultXactIsoLevel, + XACT_READ_COMMITTED, isolation_level_options, + NULL, NULL, NULL + }, + + { + {"transaction_isolation", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the current transaction's isolation level."), + NULL, + GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + }, + &XactIsoLevel, + XACT_READ_COMMITTED, isolation_level_options, + check_transaction_isolation, NULL, NULL + }, + + { + {"IntervalStyle", PGC_USERSET, CLIENT_CONN_LOCALE, + gettext_noop("Sets the display format for interval values."), + NULL, + GUC_REPORT + }, + &IntervalStyle, + INTSTYLE_POSTGRES, intervalstyle_options, + NULL, NULL, NULL + }, + + { + {"log_error_verbosity", PGC_SUSET, LOGGING_WHAT, + gettext_noop("Sets the verbosity of logged messages."), + NULL + }, + &Log_error_verbosity, + PGERROR_DEFAULT, log_error_verbosity_options, + NULL, NULL, NULL + }, + + { + {"log_min_messages", PGC_SUSET, LOGGING_WHEN, + gettext_noop("Sets the message levels that are logged."), + gettext_noop("Each level includes all the levels that follow it. The later" + " the level, the fewer messages are sent.") + }, + &log_min_messages, + WARNING, server_message_level_options, + NULL, NULL, NULL + }, + + { + {"log_min_error_statement", PGC_SUSET, LOGGING_WHEN, + gettext_noop("Causes all statements generating error at or above this level to be logged."), + gettext_noop("Each level includes all the levels that follow it. The later" + " the level, the fewer messages are sent.") + }, + &log_min_error_statement, + ERROR, server_message_level_options, + NULL, NULL, NULL + }, + + { + {"log_statement", PGC_SUSET, LOGGING_WHAT, + gettext_noop("Sets the type of statements logged."), + NULL + }, + &log_statement, + LOGSTMT_NONE, log_statement_options, + NULL, NULL, NULL + }, + + { + {"syslog_facility", PGC_SIGHUP, LOGGING_WHERE, + gettext_noop("Sets the syslog \"facility\" to be used when syslog enabled."), + NULL + }, + &syslog_facility, +#ifdef HAVE_SYSLOG + LOG_LOCAL0, +#else + 0, +#endif + syslog_facility_options, + NULL, assign_syslog_facility, NULL + }, + + { + {"session_replication_role", PGC_SUSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets the session's behavior for triggers and rewrite rules."), + NULL + }, + &SessionReplicationRole, + SESSION_REPLICATION_ROLE_ORIGIN, session_replication_role_options, + NULL, assign_session_replication_role, NULL + }, + + { + {"synchronous_commit", PGC_USERSET, WAL_SETTINGS, + gettext_noop("Sets the current transaction's synchronization level."), + NULL + }, + &synchronous_commit, + SYNCHRONOUS_COMMIT_ON, synchronous_commit_options, + NULL, assign_synchronous_commit, NULL + }, + + { + {"archive_mode", PGC_POSTMASTER, WAL_ARCHIVING, + gettext_noop("Allows archiving of WAL files using archive_command."), + NULL + }, + &XLogArchiveMode, + ARCHIVE_MODE_OFF, archive_mode_options, + NULL, NULL, NULL + }, + + { + {"recovery_target_action", PGC_POSTMASTER, WAL_RECOVERY_TARGET, + gettext_noop("Sets the action to perform upon reaching the recovery target."), + NULL + }, + &recoveryTargetAction, + RECOVERY_TARGET_ACTION_PAUSE, recovery_target_action_options, + NULL, NULL, NULL + }, + + { + {"trace_recovery_messages", PGC_SIGHUP, DEVELOPER_OPTIONS, + gettext_noop("Enables logging of recovery-related debugging information."), + gettext_noop("Each level includes all the levels that follow it. The later" + " the level, the fewer messages are sent."), + GUC_NOT_IN_SAMPLE, + }, + &trace_recovery_messages, + + /* + * client_message_level_options allows too many values, really, but + * it's not worth having a separate options array for this. + */ + LOG, client_message_level_options, + NULL, NULL, NULL + }, + + { + {"track_functions", PGC_SUSET, STATS_CUMULATIVE, + gettext_noop("Collects function-level statistics on database activity."), + NULL + }, + &pgstat_track_functions, + TRACK_FUNC_OFF, track_function_options, + NULL, NULL, NULL + }, + + + { + {"stats_fetch_consistency", PGC_USERSET, STATS_CUMULATIVE, + gettext_noop("Sets the consistency of accesses to statistics data."), + NULL + }, + &pgstat_fetch_consistency, + PGSTAT_FETCH_CONSISTENCY_CACHE, stats_fetch_consistency, + NULL, NULL, NULL + }, + + { + {"wal_compression", PGC_SUSET, WAL_SETTINGS, + gettext_noop("Compresses full-page writes written in WAL file with specified method."), + NULL + }, + &wal_compression, + WAL_COMPRESSION_NONE, wal_compression_options, + NULL, NULL, NULL + }, + + { + {"wal_level", PGC_POSTMASTER, WAL_SETTINGS, + gettext_noop("Sets the level of information written to the WAL."), + NULL + }, + &wal_level, + WAL_LEVEL_REPLICA, wal_level_options, + NULL, NULL, NULL + }, + + { + {"dynamic_shared_memory_type", PGC_POSTMASTER, RESOURCES_MEM, + gettext_noop("Selects the dynamic shared memory implementation used."), + NULL + }, + &dynamic_shared_memory_type, + DEFAULT_DYNAMIC_SHARED_MEMORY_TYPE, dynamic_shared_memory_options, + NULL, NULL, NULL + }, + + { + {"shared_memory_type", PGC_POSTMASTER, RESOURCES_MEM, + gettext_noop("Selects the shared memory implementation used for the main shared memory region."), + NULL + }, + &shared_memory_type, + DEFAULT_SHARED_MEMORY_TYPE, shared_memory_options, + NULL, NULL, NULL + }, + + { + {"wal_sync_method", PGC_SIGHUP, WAL_SETTINGS, + gettext_noop("Selects the method used for forcing WAL updates to disk."), + NULL + }, + &sync_method, + DEFAULT_SYNC_METHOD, sync_method_options, + NULL, assign_xlog_sync_method, NULL + }, + + { + {"xmlbinary", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets how binary values are to be encoded in XML."), + NULL + }, + &xmlbinary, + XMLBINARY_BASE64, xmlbinary_options, + NULL, NULL, NULL + }, + + { + {"xmloption", PGC_USERSET, CLIENT_CONN_STATEMENT, + gettext_noop("Sets whether XML data in implicit parsing and serialization " + "operations is to be considered as documents or content fragments."), + NULL + }, + &xmloption, + XMLOPTION_CONTENT, xmloption_options, + NULL, NULL, NULL + }, + + { + {"huge_pages", PGC_POSTMASTER, RESOURCES_MEM, + gettext_noop("Use of huge pages on Linux or Windows."), + NULL + }, + &huge_pages, + HUGE_PAGES_TRY, huge_pages_options, + NULL, NULL, NULL + }, + + { + {"recovery_prefetch", PGC_SIGHUP, WAL_RECOVERY, + gettext_noop("Prefetch referenced blocks during recovery."), + gettext_noop("Look ahead in the WAL to find references to uncached data.") + }, + &recovery_prefetch, + RECOVERY_PREFETCH_TRY, recovery_prefetch_options, + check_recovery_prefetch, assign_recovery_prefetch, NULL + }, + + { + {"force_parallel_mode", PGC_USERSET, DEVELOPER_OPTIONS, + gettext_noop("Forces use of parallel query facilities."), + gettext_noop("If possible, run query using a parallel worker and with parallel restrictions."), + GUC_NOT_IN_SAMPLE | GUC_EXPLAIN + }, + &force_parallel_mode, + FORCE_PARALLEL_OFF, force_parallel_mode_options, + NULL, NULL, NULL + }, + + { + {"password_encryption", PGC_USERSET, CONN_AUTH_AUTH, + gettext_noop("Chooses the algorithm for encrypting passwords."), + NULL + }, + &Password_encryption, + PASSWORD_TYPE_SCRAM_SHA_256, password_encryption_options, + NULL, NULL, NULL + }, + + { + {"plan_cache_mode", PGC_USERSET, QUERY_TUNING_OTHER, + gettext_noop("Controls the planner's selection of custom or generic plan."), + gettext_noop("Prepared statements can have custom and generic plans, and the planner " + "will attempt to choose which is better. This can be set to override " + "the default behavior."), + GUC_EXPLAIN + }, + &plan_cache_mode, + PLAN_CACHE_MODE_AUTO, plan_cache_mode_options, + NULL, NULL, NULL + }, + + { + {"ssl_min_protocol_version", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Sets the minimum SSL/TLS protocol version to use."), + NULL, + GUC_SUPERUSER_ONLY + }, + &ssl_min_protocol_version, + PG_TLS1_2_VERSION, + ssl_protocol_versions_info + 1, /* don't allow PG_TLS_ANY */ + NULL, NULL, NULL + }, + + { + {"ssl_max_protocol_version", PGC_SIGHUP, CONN_AUTH_SSL, + gettext_noop("Sets the maximum SSL/TLS protocol version to use."), + NULL, + GUC_SUPERUSER_ONLY + }, + &ssl_max_protocol_version, + PG_TLS_ANY, + ssl_protocol_versions_info, + NULL, NULL, NULL + }, + + { + {"recovery_init_sync_method", PGC_SIGHUP, ERROR_HANDLING_OPTIONS, + gettext_noop("Sets the method for synchronizing the data directory before crash recovery."), + }, + &recovery_init_sync_method, + RECOVERY_INIT_SYNC_METHOD_FSYNC, recovery_init_sync_method_options, + NULL, NULL, NULL + }, + + /* End-of-list marker */ + { + {NULL, 0, 0, NULL, NULL}, NULL, 0, NULL, NULL, NULL, NULL + } +}; diff --git a/src/include/access/tableam.h b/src/include/access/tableam.h index 9df4e7cb0ab..ffe265d2a15 100644 --- a/src/include/access/tableam.h +++ b/src/include/access/tableam.h @@ -20,7 +20,7 @@ #include "access/relscan.h" #include "access/sdir.h" #include "access/xact.h" -#include "utils/guc.h" +#include "executor/tuptable.h" #include "utils/rel.h" #include "utils/snapshot.h" @@ -2072,7 +2072,5 @@ extern void table_block_relation_estimate_size(Relation rel, extern const TableAmRoutine *GetTableAmRoutine(Oid amhandler); extern const TableAmRoutine *GetHeapamTableAmRoutine(void); -extern bool check_default_table_access_method(char **newval, void **extra, - GucSource source); #endif /* TABLEAM_H */ diff --git a/src/include/access/xlog.h b/src/include/access/xlog.h index cd674c3c23f..9ebd321ba76 100644 --- a/src/include/access/xlog.h +++ b/src/include/access/xlog.h @@ -227,6 +227,7 @@ extern XLogRecPtr GetFakeLSNForUnloggedRel(void); extern Size XLOGShmemSize(void); extern void XLOGShmemInit(void); extern void BootStrapXLOG(void); +extern void InitializeWalConsistencyChecking(void); extern void LocalProcessControlFile(bool reset); extern void StartupXLOG(void); extern void ShutdownXLOG(int code, Datum arg); @@ -245,9 +246,6 @@ extern XLogRecPtr GetLastImportantRecPtr(void); extern void SetWalWriterSleeping(bool sleeping); -extern void assign_max_wal_size(int newval, void *extra); -extern void assign_checkpoint_completion_target(double newval, void *extra); - /* * Routines used by xlogrecovery.c to call back into xlog.c during recovery. */ diff --git a/src/include/commands/variable.h b/src/include/commands/variable.h deleted file mode 100644 index 0e5ddcbcf37..00000000000 --- a/src/include/commands/variable.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * variable.h - * Routines for handling specialized SET variables. - * - * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group - * Portions Copyright (c) 1994, Regents of the University of California - * - * src/include/commands/variable.h - */ -#ifndef VARIABLE_H -#define VARIABLE_H - -#include "utils/guc.h" - - -extern bool check_datestyle(char **newval, void **extra, GucSource source); -extern void assign_datestyle(const char *newval, void *extra); -extern bool check_timezone(char **newval, void **extra, GucSource source); -extern void assign_timezone(const char *newval, void *extra); -extern const char *show_timezone(void); -extern bool check_log_timezone(char **newval, void **extra, GucSource source); -extern void assign_log_timezone(const char *newval, void *extra); -extern const char *show_log_timezone(void); -extern bool check_transaction_read_only(bool *newval, void **extra, GucSource source); -extern bool check_XactIsoLevel(int *newval, void **extra, GucSource source); -extern bool check_transaction_deferrable(bool *newval, void **extra, GucSource source); -extern bool check_random_seed(double *newval, void **extra, GucSource source); -extern void assign_random_seed(double newval, void *extra); -extern const char *show_random_seed(void); -extern bool check_client_encoding(char **newval, void **extra, GucSource source); -extern void assign_client_encoding(const char *newval, void *extra); -extern bool check_session_authorization(char **newval, void **extra, GucSource source); -extern void assign_session_authorization(const char *newval, void *extra); -extern bool check_role(char **newval, void **extra, GucSource source); -extern void assign_role(const char *newval, void *extra); -extern const char *show_role(void); - -#endif /* VARIABLE_H */ diff --git a/src/include/replication/syncrep.h b/src/include/replication/syncrep.h index 4d7c90b9f0d..b5446597b50 100644 --- a/src/include/replication/syncrep.h +++ b/src/include/replication/syncrep.h @@ -14,7 +14,6 @@ #define _SYNCREP_H #include "access/xlogdefs.h" -#include "utils/guc.h" #define SyncRepRequested() \ (max_wal_senders > 0 && synchronous_commit > SYNCHRONOUS_COMMIT_LOCAL_FLUSH) @@ -97,11 +96,6 @@ extern int SyncRepGetCandidateStandbys(SyncRepStandbyData **standbys); /* called by checkpointer */ extern void SyncRepUpdateSyncStandbysDefined(void); -/* GUC infrastructure */ -extern bool check_synchronous_standby_names(char **newval, void **extra, GucSource source); -extern void assign_synchronous_standby_names(const char *newval, void *extra); -extern void assign_synchronous_commit(int newval, void *extra); - /* * Internal functions for parsing synchronous_standby_names grammar, * in syncrep_gram.y and syncrep_scanner.l diff --git a/src/include/tcop/tcopprot.h b/src/include/tcop/tcopprot.h index 70d9dab25b8..5d34978f329 100644 --- a/src/include/tcop/tcopprot.h +++ b/src/include/tcop/tcopprot.h @@ -66,9 +66,6 @@ extern List *pg_plan_queries(List *querytrees, const char *query_string, int cursorOptions, ParamListInfo boundParams); -extern bool check_max_stack_depth(int *newval, void **extra, GucSource source); -extern void assign_max_stack_depth(int newval, void *extra); - extern void die(SIGNAL_ARGS); extern void quickdie(SIGNAL_ARGS) pg_attribute_noreturn(); extern void StatementCancelHandler(SIGNAL_ARGS); diff --git a/src/include/tsearch/ts_cache.h b/src/include/tsearch/ts_cache.h index 5e4a49ea1c7..bcb5c7665ba 100644 --- a/src/include/tsearch/ts_cache.h +++ b/src/include/tsearch/ts_cache.h @@ -13,7 +13,7 @@ #ifndef TS_CACHE_H #define TS_CACHE_H -#include "utils/guc.h" +#include "fmgr.h" /* @@ -92,7 +92,5 @@ extern TSDictionaryCacheEntry *lookup_ts_dictionary_cache(Oid dictId); extern TSConfigCacheEntry *lookup_ts_config_cache(Oid cfgId); extern Oid getTSCurrentConfig(bool emitError); -extern bool check_TSCurrentConfig(char **newval, void **extra, GucSource source); -extern void assign_TSCurrentConfig(const char *newval, void *extra); #endif /* TS_CACHE_H */ diff --git a/src/include/utils/elog.h b/src/include/utils/elog.h index 56398176901..4dd9658a3cf 100644 --- a/src/include/utils/elog.h +++ b/src/include/utils/elog.h @@ -460,10 +460,6 @@ extern void write_pipe_chunks(char *data, int len, int dest); extern void write_csvlog(ErrorData *edata); extern void write_jsonlog(ErrorData *edata); -#ifdef HAVE_SYSLOG -extern void set_syslog_parameters(const char *ident, int facility); -#endif - /* * Write errors to stderr (or by equal means when stderr is * not available). Used before ereport/elog can be used diff --git a/src/include/utils/guc.h b/src/include/utils/guc.h index 5da17a48495..e426dd757d9 100644 --- a/src/include/utils/guc.h +++ b/src/include/utils/guc.h @@ -1,8 +1,7 @@ /*-------------------------------------------------------------------- * guc.h * - * External declarations pertaining to backend/utils/misc/guc.c and - * backend/utils/misc/guc-file.l + * External declarations pertaining to Grand Unified Configuration. * * Copyright (c) 2000-2022, PostgreSQL Global Development Group * Written by Peter Eisentraut <peter_e@gmx.net>. @@ -242,7 +241,7 @@ typedef enum #define GUC_UNIT (GUC_UNIT_MEMORY | GUC_UNIT_TIME) -/* GUC vars that are actually declared in guc.c, rather than elsewhere */ +/* GUC vars that are actually defined in guc_tables.c, rather than elsewhere */ extern PGDLLIMPORT bool Debug_print_plan; extern PGDLLIMPORT bool Debug_print_parse; extern PGDLLIMPORT bool Debug_print_rewritten; @@ -269,7 +268,6 @@ extern PGDLLIMPORT int log_temp_files; extern PGDLLIMPORT double log_statement_sample_rate; extern PGDLLIMPORT double log_xact_sample_rate; extern PGDLLIMPORT char *backtrace_functions; -extern PGDLLIMPORT char *backtrace_symbol_list; extern PGDLLIMPORT int temp_file_limit; @@ -371,7 +369,6 @@ extern void ProcessConfigFile(GucContext context); extern char *convert_GUC_name_for_parameter_acl(const char *name); extern bool check_GUC_name_for_parameter_acl(const char *name); extern void InitializeGUCOptions(void); -extern void InitializeWalConsistencyChecking(void); extern bool SelectConfigFiles(const char *userDoption, const char *progname); extern void ResetAllOptions(void); extern void AtStart_GUC(void); @@ -380,6 +377,7 @@ extern void AtEOXact_GUC(bool isCommit, int nestLevel); extern void BeginReportingGUCOptions(void); extern void ReportChangedGUCOptions(void); extern void ParseLongOption(const char *string, char **name, char **value); +extern const char *get_config_unit_name(int flags); extern bool parse_int(const char *value, int *result, int flags, const char **hintmsg); extern bool parse_real(const char *value, double *result, int flags, @@ -396,22 +394,18 @@ extern int set_config_option_ext(const char *name, const char *value, extern void AlterSystemSetConfigFile(AlterSystemStmt *altersysstmt); extern char *GetConfigOptionByName(const char *name, const char **varname, bool missing_ok); -extern void GetConfigOptionByNum(int varnum, const char **values, bool *noshow); extern int GetNumConfigOptions(void); -extern void SetPGVariable(const char *name, List *args, bool is_local); -extern void GetPGVariable(const char *name, DestReceiver *dest); -extern TupleDesc GetPGVariableResultDesc(const char *name); - -extern void ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel); -extern char *ExtractSetVariableArgs(VariableSetStmt *stmt); - extern void ProcessGUCArray(ArrayType *array, GucContext context, GucSource source, GucAction action); extern ArrayType *GUCArrayAdd(ArrayType *array, const char *name, const char *value); extern ArrayType *GUCArrayDelete(ArrayType *array, const char *name); extern ArrayType *GUCArrayReset(ArrayType *array); +extern void *guc_malloc(int elevel, size_t size); +extern pg_nodiscard void *guc_realloc(int elevel, void *old, size_t size); +extern char *guc_strdup(int elevel, const char *src); + #ifdef EXEC_BACKEND extern void write_nondefault_variables(GucContext context); extern void read_nondefault_variables(void); @@ -422,6 +416,13 @@ extern Size EstimateGUCStateSpace(void); extern void SerializeGUCState(Size maxsize, char *start_address); extern void RestoreGUCState(void *gucstate); +/* Functions exported by guc_funcs.c */ +extern void ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel); +extern char *ExtractSetVariableArgs(VariableSetStmt *stmt); +extern void SetPGVariable(const char *name, List *args, bool is_local); +extern void GetPGVariable(const char *name, DestReceiver *dest); +extern TupleDesc GetPGVariableResultDesc(const char *name); + /* Support for messages reported from GUC check hooks */ extern PGDLLIMPORT char *GUC_check_errmsg_string; @@ -442,27 +443,4 @@ extern void GUC_check_errcode(int sqlerrcode); pre_format_elog_string(errno, TEXTDOMAIN), \ GUC_check_errhint_string = format_elog_string -/* - * The following functions are not in guc.c, but are declared here to avoid - * having to include guc.h in some widely used headers that it really doesn't - * belong in. - */ - -/* in commands/tablespace.c */ -extern bool check_default_tablespace(char **newval, void **extra, GucSource source); -extern bool check_temp_tablespaces(char **newval, void **extra, GucSource source); -extern void assign_temp_tablespaces(const char *newval, void *extra); - -/* in catalog/namespace.c */ -extern bool check_search_path(char **newval, void **extra, GucSource source); -extern void assign_search_path(const char *newval, void *extra); - -/* in access/transam/xlog.c */ -extern bool check_wal_buffers(int *newval, void **extra, GucSource source); -extern void assign_xlog_sync_method(int new_sync_method, void *extra); - -/* in access/transam/xlogprefetcher.c */ -extern bool check_recovery_prefetch(int *new_value, void **extra, GucSource source); -extern void assign_recovery_prefetch(int new_value, void *extra); - #endif /* GUC_H */ diff --git a/src/include/utils/guc_hooks.h b/src/include/utils/guc_hooks.h new file mode 100644 index 00000000000..f1a9a183b49 --- /dev/null +++ b/src/include/utils/guc_hooks.h @@ -0,0 +1,158 @@ +/*------------------------------------------------------------------------- + * + * guc_hooks.h + * Declarations of per-variable callback functions used by GUC. + * + * These functions are scattered throughout the system, but we + * declare them all here to avoid having to propagate guc.h into + * a lot of unrelated header files. + * + * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group + * + * src/include/utils/guc_hooks.h + * + *------------------------------------------------------------------------- + */ +#ifndef GUC_HOOKS_H +#define GUC_HOOKS_H 1 + +#include "utils/guc.h" + +/* + * See guc.h for the typedefs that these hook functions should match + * (GucBoolCheckHook and so on). + * + * Please keep the declarations in order by GUC variable name. + */ + +extern bool check_application_name(char **newval, void **extra, + GucSource source); +extern void assign_application_name(const char *newval, void *extra); +extern const char *show_archive_command(void); +extern bool check_autovacuum_max_workers(int *newval, void **extra, + GucSource source); +extern bool check_autovacuum_work_mem(int *newval, void **extra, + GucSource source); +extern bool check_backtrace_functions(char **newval, void **extra, + GucSource source); +extern void assign_backtrace_functions(const char *newval, void *extra); +extern bool check_bonjour(bool *newval, void **extra, GucSource source); +extern bool check_canonical_path(char **newval, void **extra, GucSource source); +extern void assign_checkpoint_completion_target(double newval, void *extra); +extern bool check_client_connection_check_interval(int *newval, void **extra, + GucSource source); +extern bool check_client_encoding(char **newval, void **extra, GucSource source); +extern void assign_client_encoding(const char *newval, void *extra); +extern bool check_cluster_name(char **newval, void **extra, GucSource source); +extern const char *show_data_directory_mode(void); +extern bool check_datestyle(char **newval, void **extra, GucSource source); +extern void assign_datestyle(const char *newval, void *extra); +extern bool check_default_table_access_method(char **newval, void **extra, + GucSource source); +extern bool check_default_tablespace(char **newval, void **extra, + GucSource source); +extern bool check_default_text_search_config(char **newval, void **extra, GucSource source); +extern void assign_default_text_search_config(const char *newval, void *extra); +extern bool check_default_with_oids(bool *newval, void **extra, + GucSource source); +extern bool check_effective_io_concurrency(int *newval, void **extra, + GucSource source); +extern bool check_huge_page_size(int *newval, void **extra, GucSource source); +extern const char *show_in_hot_standby(void); +extern bool check_locale_messages(char **newval, void **extra, GucSource source); +extern void assign_locale_messages(const char *newval, void *extra); +extern bool check_locale_monetary(char **newval, void **extra, GucSource source); +extern void assign_locale_monetary(const char *newval, void *extra); +extern bool check_locale_numeric(char **newval, void **extra, GucSource source); +extern void assign_locale_numeric(const char *newval, void *extra); +extern bool check_locale_time(char **newval, void **extra, GucSource source); +extern void assign_locale_time(const char *newval, void *extra); +extern bool check_log_destination(char **newval, void **extra, + GucSource source); +extern void assign_log_destination(const char *newval, void *extra); +extern const char *show_log_file_mode(void); +extern bool check_log_stats(bool *newval, void **extra, GucSource source); +extern bool check_log_timezone(char **newval, void **extra, GucSource source); +extern void assign_log_timezone(const char *newval, void *extra); +extern const char *show_log_timezone(void); +extern bool check_maintenance_io_concurrency(int *newval, void **extra, + GucSource source); +extern void assign_maintenance_io_concurrency(int newval, void *extra); +extern bool check_max_connections(int *newval, void **extra, GucSource source); +extern bool check_max_wal_senders(int *newval, void **extra, GucSource source); +extern void assign_max_wal_size(int newval, void *extra); +extern bool check_max_worker_processes(int *newval, void **extra, + GucSource source); +extern bool check_max_stack_depth(int *newval, void **extra, GucSource source); +extern void assign_max_stack_depth(int newval, void *extra); +extern bool check_primary_slot_name(char **newval, void **extra, + GucSource source); +extern bool check_random_seed(double *newval, void **extra, GucSource source); +extern void assign_random_seed(double newval, void *extra); +extern const char *show_random_seed(void); +extern bool check_recovery_prefetch(int *new_value, void **extra, + GucSource source); +extern void assign_recovery_prefetch(int new_value, void *extra); +extern bool check_recovery_target(char **newval, void **extra, + GucSource source); +extern void assign_recovery_target(const char *newval, void *extra); +extern bool check_recovery_target_lsn(char **newval, void **extra, + GucSource source); +extern void assign_recovery_target_lsn(const char *newval, void *extra); +extern bool check_recovery_target_name(char **newval, void **extra, + GucSource source); +extern void assign_recovery_target_name(const char *newval, void *extra); +extern bool check_recovery_target_time(char **newval, void **extra, + GucSource source); +extern void assign_recovery_target_time(const char *newval, void *extra); +extern bool check_recovery_target_timeline(char **newval, void **extra, + GucSource source); +extern void assign_recovery_target_timeline(const char *newval, void *extra); +extern bool check_recovery_target_xid(char **newval, void **extra, + GucSource source); +extern void assign_recovery_target_xid(const char *newval, void *extra); +extern bool check_role(char **newval, void **extra, GucSource source); +extern void assign_role(const char *newval, void *extra); +extern const char *show_role(void); +extern bool check_search_path(char **newval, void **extra, GucSource source); +extern void assign_search_path(const char *newval, void *extra); +extern bool check_session_authorization(char **newval, void **extra, GucSource source); +extern void assign_session_authorization(const char *newval, void *extra); +extern void assign_session_replication_role(int newval, void *extra); +extern bool check_ssl(bool *newval, void **extra, GucSource source); +extern bool check_stage_log_stats(bool *newval, void **extra, GucSource source); +extern bool check_synchronous_standby_names(char **newval, void **extra, + GucSource source); +extern void assign_synchronous_standby_names(const char *newval, void *extra); +extern void assign_synchronous_commit(int newval, void *extra); +extern void assign_syslog_facility(int newval, void *extra); +extern void assign_syslog_ident(const char *newval, void *extra); +extern void assign_tcp_keepalives_count(int newval, void *extra); +extern const char *show_tcp_keepalives_count(void); +extern void assign_tcp_keepalives_idle(int newval, void *extra); +extern const char *show_tcp_keepalives_idle(void); +extern void assign_tcp_keepalives_interval(int newval, void *extra); +extern const char *show_tcp_keepalives_interval(void); +extern void assign_tcp_user_timeout(int newval, void *extra); +extern const char *show_tcp_user_timeout(void); +extern bool check_temp_buffers(int *newval, void **extra, GucSource source); +extern bool check_temp_tablespaces(char **newval, void **extra, + GucSource source); +extern void assign_temp_tablespaces(const char *newval, void *extra); +extern bool check_timezone(char **newval, void **extra, GucSource source); +extern void assign_timezone(const char *newval, void *extra); +extern const char *show_timezone(void); +extern bool check_timezone_abbreviations(char **newval, void **extra, + GucSource source); +extern void assign_timezone_abbreviations(const char *newval, void *extra); +extern bool check_transaction_deferrable(bool *newval, void **extra, GucSource source); +extern bool check_transaction_isolation(int *newval, void **extra, GucSource source); +extern bool check_transaction_read_only(bool *newval, void **extra, GucSource source); +extern const char *show_unix_socket_permissions(void); +extern bool check_wal_buffers(int *newval, void **extra, GucSource source); +extern bool check_wal_consistency_checking(char **newval, void **extra, + GucSource source); +extern void assign_wal_consistency_checking(const char *newval, void *extra); +extern void assign_xlog_sync_method(int new_sync_method, void *extra); + +#endif /* GUC_HOOKS_H */ diff --git a/src/include/utils/guc_tables.h b/src/include/utils/guc_tables.h index 90565b99212..b3d2a959c3a 100644 --- a/src/include/utils/guc_tables.h +++ b/src/include/utils/guc_tables.h @@ -263,6 +263,23 @@ extern PGDLLIMPORT const char *const config_type_names[]; extern PGDLLIMPORT const char *const GucContext_Names[]; extern PGDLLIMPORT const char *const GucSource_Names[]; +/* data arrays defining all the built-in GUC variables */ +extern PGDLLIMPORT struct config_bool ConfigureNamesBool[]; +extern PGDLLIMPORT struct config_int ConfigureNamesInt[]; +extern PGDLLIMPORT struct config_real ConfigureNamesReal[]; +extern PGDLLIMPORT struct config_string ConfigureNamesString[]; +extern PGDLLIMPORT struct config_enum ConfigureNamesEnum[]; + +/* lookup GUC variables, returning config_generic pointers */ +extern struct config_generic *find_option(const char *name, + bool create_placeholders, + bool skip_errors, + int elevel); +extern struct config_generic **get_explain_guc_options(int *num); + +/* get string value of variable */ +extern char *ShowGUCOption(struct config_generic *record, bool use_units); + /* get the current set of variables */ extern struct config_generic **get_guc_variables(void); @@ -272,6 +289,9 @@ extern void build_guc_variables(void); extern const char *config_enum_lookup_by_value(struct config_enum *record, int val); extern bool config_enum_lookup_by_name(struct config_enum *record, const char *value, int *retval); -extern struct config_generic **get_explain_guc_options(int *num); +extern char *config_enum_get_options(struct config_enum *record, + const char *prefix, + const char *suffix, + const char *separator); #endif /* GUC_TABLES_H */ diff --git a/src/include/utils/pg_locale.h b/src/include/utils/pg_locale.h index e7385faef86..a8759421236 100644 --- a/src/include/utils/pg_locale.h +++ b/src/include/utils/pg_locale.h @@ -19,8 +19,6 @@ #include <unicode/ucol.h> #endif -#include "utils/guc.h" - #ifdef USE_ICU /* * ucol_strcollUTF8() was introduced in ICU 50, but it is buggy before ICU 53. @@ -50,15 +48,6 @@ extern PGDLLIMPORT char *localized_abbrev_months[]; extern PGDLLIMPORT char *localized_full_months[]; -extern bool check_locale_messages(char **newval, void **extra, GucSource source); -extern void assign_locale_messages(const char *newval, void *extra); -extern bool check_locale_monetary(char **newval, void **extra, GucSource source); -extern void assign_locale_monetary(const char *newval, void *extra); -extern bool check_locale_numeric(char **newval, void **extra, GucSource source); -extern void assign_locale_numeric(const char *newval, void *extra); -extern bool check_locale_time(char **newval, void **extra, GucSource source); -extern void assign_locale_time(const char *newval, void *extra); - extern bool check_locale(int category, const char *locale, char **canonname); extern char *pg_perm_setlocale(int category, const char *locale); extern void check_strxfrm_bug(void); diff --git a/src/test/regress/regress.c b/src/test/regress/regress.c index 78dde978498..548afb4438e 100644 --- a/src/test/regress/regress.c +++ b/src/test/regress/regress.c @@ -39,6 +39,7 @@ #include "parser/parse_coerce.h" #include "port/atomics.h" #include "storage/spin.h" +#include "utils/array.h" #include "utils/builtins.h" #include "utils/geo_decls.h" #include "utils/lsyscache.h" |