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-rw-r--r--src/backend/utils/misc/guc.c441
-rw-r--r--src/backend/utils/misc/postgresql.conf.sample150
-rw-r--r--src/include/optimizer/cost.h3
-rw-r--r--src/include/optimizer/geqo.h4
-rw-r--r--src/include/optimizer/paths.h3
5 files changed, 380 insertions, 221 deletions
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 9c23f731776..36b5bfb85dc 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -4,7 +4,7 @@
* Support for grand unified configuration scheme, including SET
* command, configuration file, and command line options.
*
- * $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.27 2001/01/09 06:24:33 vadim Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.28 2001/01/24 18:37:31 momjian Exp $
*
* Copyright 2000 by PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
@@ -76,50 +76,50 @@ bool SQL_inheritance = true;
enum config_type
{
- PGC_NONE = 0,
- PGC_BOOL,
- PGC_INT,
- PGC_REAL,
- PGC_STRING
+ PGC_NONE = 0,
+ PGC_BOOL,
+ PGC_INT,
+ PGC_REAL,
+ PGC_STRING
};
struct config_generic
{
- const char *name;
- GucContext context;
- void *variable;
+ const char *name;
+ GucContext context;
+ void *variable;
};
struct config_bool
{
- const char *name;
- GucContext context;
- bool *variable;
- bool default_val;
+ const char *name;
+ GucContext context;
+ bool *variable;
+ bool default_val;
};
struct config_int
{
- const char *name;
- GucContext context;
- int *variable;
- int default_val;
- int min;
- int max;
+ const char *name;
+ GucContext context;
+ int *variable;
+ int default_val;
+ int min;
+ int max;
};
struct config_real
{
- const char *name;
- GucContext context;
- double *variable;
- double default_val;
- double min;
- double max;
+ const char *name;
+ GucContext context;
+ double *variable;
+ double default_val;
+ double min;
+ double max;
};
/*
@@ -130,11 +130,11 @@ struct config_real
*/
struct config_string
{
- const char *name;
- GucContext context;
- char **variable;
- const char *default_val;
- bool (*parse_hook)(const char *);
+ const char *name;
+ GucContext context;
+ char **variable;
+ const char *default_val;
+ bool (*parse_hook)(const char *);
};
@@ -152,7 +152,12 @@ struct config_string
*
* 4. Add a record below.
*
- * 5. Don't forget to document that option.
+ * 5. Add it to postgresql.conf.sample
+ *
+ * 6. Don't forget to document that option.
+ *
+ * WHEN MAKING MODIFICATIONS, remember to update postgresql.conf.sample
+ *
*/
@@ -284,28 +289,28 @@ ConfigureNamesInt[] =
{"commit_delay", PGC_USERSET, &CommitDelay,
5, 0, 1000},
- {NULL, 0, NULL, 0, 0, 0}
+ {NULL, 0, NULL, 0, 0, 0}
};
static struct config_real
ConfigureNamesReal[] =
{
- {"effective_cache_size", PGC_USERSET, &effective_cache_size,
- DEFAULT_EFFECTIVE_CACHE_SIZE, 0, DBL_MAX},
- {"random_page_cost", PGC_USERSET, &random_page_cost,
- DEFAULT_RANDOM_PAGE_COST, 0, DBL_MAX},
- {"cpu_tuple_cost", PGC_USERSET, &cpu_tuple_cost,
- DEFAULT_CPU_TUPLE_COST, 0, DBL_MAX},
- {"cpu_index_tuple_cost", PGC_USERSET, &cpu_index_tuple_cost,
- DEFAULT_CPU_INDEX_TUPLE_COST, 0, DBL_MAX},
- {"cpu_operator_cost", PGC_USERSET, &cpu_operator_cost,
- DEFAULT_CPU_OPERATOR_COST, 0, DBL_MAX},
-
- {"geqo_selection_bias", PGC_USERSET, &Geqo_selection_bias,
- DEFAULT_GEQO_SELECTION_BIAS, MIN_GEQO_SELECTION_BIAS, MAX_GEQO_SELECTION_BIAS},
-
- {NULL, 0, NULL, 0.0, 0.0, 0.0}
+ {"effective_cache_size", PGC_USERSET, &effective_cache_size,
+ DEFAULT_EFFECTIVE_CACHE_SIZE, 0, DBL_MAX},
+ {"random_page_cost", PGC_USERSET, &random_page_cost,
+ DEFAULT_RANDOM_PAGE_COST, 0, DBL_MAX},
+ {"cpu_tuple_cost", PGC_USERSET, &cpu_tuple_cost,
+ DEFAULT_CPU_TUPLE_COST, 0, DBL_MAX},
+ {"cpu_index_tuple_cost", PGC_USERSET, &cpu_index_tuple_cost,
+ DEFAULT_CPU_INDEX_TUPLE_COST, 0, DBL_MAX},
+ {"cpu_operator_cost", PGC_USERSET, &cpu_operator_cost,
+ DEFAULT_CPU_OPERATOR_COST, 0, DBL_MAX},
+
+ {"geqo_selection_bias", PGC_USERSET, &Geqo_selection_bias,
+ DEFAULT_GEQO_SELECTION_BIAS, MIN_GEQO_SELECTION_BIAS, MAX_GEQO_SELECTION_BIAS},
+
+ {NULL, 0, NULL, 0.0, 0.0, 0.0}
};
@@ -319,10 +324,10 @@ ConfigureNamesString[] =
"", NULL},
#ifdef ENABLE_SYSLOG
- {"syslog_facility", PGC_POSTMASTER, &Syslog_facility,
- "LOCAL0", check_facility},
- {"syslog_ident", PGC_POSTMASTER, &Syslog_ident,
- "postgres", NULL},
+ {"syslog_facility", PGC_POSTMASTER, &Syslog_facility,
+ "LOCAL0", check_facility},
+ {"syslog_ident", PGC_POSTMASTER, &Syslog_ident,
+ "postgres", NULL},
#endif
{"unix_socket_directory", PGC_POSTMASTER, &UnixSocketDir,
@@ -346,43 +351,43 @@ ConfigureNamesString[] =
static enum config_type
find_option(const char * name, struct config_generic ** record)
{
- int i;
-
- Assert(name);
-
- for (i = 0; ConfigureNamesBool[i].name; i++)
- if (strcasecmp(ConfigureNamesBool[i].name, name)==0)
- {
- if (record)
- *record = (struct config_generic *)&ConfigureNamesBool[i];
- return PGC_BOOL;
- }
-
- for (i = 0; ConfigureNamesInt[i].name; i++)
- if (strcasecmp(ConfigureNamesInt[i].name, name)==0)
- {
- if (record)
- *record = (struct config_generic *)&ConfigureNamesInt[i];
- return PGC_INT;
- }
-
- for (i = 0; ConfigureNamesReal[i].name; i++)
- if (strcasecmp(ConfigureNamesReal[i].name, name)==0)
- {
- if (record)
- *record = (struct config_generic *)&ConfigureNamesReal[i];
- return PGC_REAL;
- }
+ int i;
+
+ Assert(name);
+
+ for (i = 0; ConfigureNamesBool[i].name; i++)
+ if (strcasecmp(ConfigureNamesBool[i].name, name)==0)
+ {
+ if (record)
+ *record = (struct config_generic *)&ConfigureNamesBool[i];
+ return PGC_BOOL;
+ }
+
+ for (i = 0; ConfigureNamesInt[i].name; i++)
+ if (strcasecmp(ConfigureNamesInt[i].name, name)==0)
+ {
+ if (record)
+ *record = (struct config_generic *)&ConfigureNamesInt[i];
+ return PGC_INT;
+ }
+
+ for (i = 0; ConfigureNamesReal[i].name; i++)
+ if (strcasecmp(ConfigureNamesReal[i].name, name)==0)
+ {
+ if (record)
+ *record = (struct config_generic *)&ConfigureNamesReal[i];
+ return PGC_REAL;
+ }
for (i = 0; ConfigureNamesString[i].name; i++)
- if (strcasecmp(ConfigureNamesString[i].name, name)==0)
- {
- if (record)
- *record = (struct config_generic *)&ConfigureNamesString[i];
- return PGC_STRING;
- }
-
- return PGC_NONE;
+ if (strcasecmp(ConfigureNamesString[i].name, name)==0)
+ {
+ if (record)
+ *record = (struct config_generic *)&ConfigureNamesString[i];
+ return PGC_STRING;
+ }
+
+ return PGC_NONE;
}
@@ -394,16 +399,16 @@ find_option(const char * name, struct config_generic ** record)
void
ResetAllOptions(void)
{
- int i;
+ int i;
- for (i = 0; ConfigureNamesBool[i].name; i++)
- *(ConfigureNamesBool[i].variable) = ConfigureNamesBool[i].default_val;
+ for (i = 0; ConfigureNamesBool[i].name; i++)
+ *(ConfigureNamesBool[i].variable) = ConfigureNamesBool[i].default_val;
- for (i = 0; ConfigureNamesInt[i].name; i++)
- *(ConfigureNamesInt[i].variable) = ConfigureNamesInt[i].default_val;
+ for (i = 0; ConfigureNamesInt[i].name; i++)
+ *(ConfigureNamesInt[i].variable) = ConfigureNamesInt[i].default_val;
- for (i = 0; ConfigureNamesReal[i].name; i++)
- *(ConfigureNamesReal[i].variable) = ConfigureNamesReal[i].default_val;
+ for (i = 0; ConfigureNamesReal[i].name; i++)
+ *(ConfigureNamesReal[i].variable) = ConfigureNamesReal[i].default_val;
for (i = 0; ConfigureNamesString[i].name; i++)
{
@@ -433,55 +438,55 @@ ResetAllOptions(void)
static bool
parse_bool(const char * value, bool * result)
{
- size_t len = strlen(value);
-
- if (strncasecmp(value, "true", len)==0)
- {
- if (result)
- *result = true;
- }
- else if (strncasecmp(value, "false", len)==0)
- {
- if (result)
- *result = false;
- }
-
- else if (strncasecmp(value, "yes", len)==0)
- {
- if (result)
- *result = true;
- }
- else if (strncasecmp(value, "no", len)==0)
- {
- if (result)
- *result = false;
- }
-
- else if (strcasecmp(value, "on")==0)
- {
- if (result)
- *result = true;
- }
- else if (strcasecmp(value, "off")==0)
- {
- if (result)
- *result = false;
- }
-
- else if (strcasecmp(value, "1")==0)
- {
- if (result)
- *result = true;
- }
- else if (strcasecmp(value, "0")==0)
- {
- if (result)
- *result = false;
- }
-
- else
- return false;
- return true;
+ size_t len = strlen(value);
+
+ if (strncasecmp(value, "true", len)==0)
+ {
+ if (result)
+ *result = true;
+ }
+ else if (strncasecmp(value, "false", len)==0)
+ {
+ if (result)
+ *result = false;
+ }
+
+ else if (strncasecmp(value, "yes", len)==0)
+ {
+ if (result)
+ *result = true;
+ }
+ else if (strncasecmp(value, "no", len)==0)
+ {
+ if (result)
+ *result = false;
+ }
+
+ else if (strcasecmp(value, "on")==0)
+ {
+ if (result)
+ *result = true;
+ }
+ else if (strcasecmp(value, "off")==0)
+ {
+ if (result)
+ *result = false;
+ }
+
+ else if (strcasecmp(value, "1")==0)
+ {
+ if (result)
+ *result = true;
+ }
+ else if (strcasecmp(value, "0")==0)
+ {
+ if (result)
+ *result = false;
+ }
+
+ else
+ return false;
+ return true;
}
@@ -495,16 +500,16 @@ parse_bool(const char * value, bool * result)
static bool
parse_int(const char * value, int * result)
{
- long val;
- char * endptr;
-
- errno = 0;
- val = strtol(value, &endptr, 0);
- if (endptr == value || *endptr != '\0' || errno == ERANGE)
- return false;
- if (result)
- *result = (int)val;
- return true;
+ long val;
+ char * endptr;
+
+ errno = 0;
+ val = strtol(value, &endptr, 0);
+ if (endptr == value || *endptr != '\0' || errno == ERANGE)
+ return false;
+ if (result)
+ *result = (int)val;
+ return true;
}
@@ -517,16 +522,16 @@ parse_int(const char * value, int * result)
static bool
parse_real(const char * value, double * result)
{
- double val;
- char * endptr;
-
- errno = 0;
- val = strtod(value, &endptr);
- if (endptr == value || *endptr != '\0' || errno == ERANGE)
- return false;
- if (result)
- *result = val;
- return true;
+ double val;
+ char * endptr;
+
+ errno = 0;
+ val = strtod(value, &endptr);
+ if (endptr == value || *endptr != '\0' || errno == ERANGE)
+ return false;
+ if (result)
+ *result = val;
+ return true;
}
@@ -555,14 +560,14 @@ bool
set_config_option(const char * name, const char * value, GucContext
context, bool DoIt)
{
- struct config_generic * record;
- enum config_type type;
+ struct config_generic * record;
+ enum config_type type;
int elevel;
elevel = (context == PGC_SIGHUP) ? DEBUG : ERROR;
- type = find_option(name, &record);
- if (type == PGC_NONE)
+ type = find_option(name, &record);
+ if (type == PGC_NONE)
{
elog(elevel, "'%s' is not a valid option name", name);
return false;
@@ -573,7 +578,7 @@ set_config_option(const char * name, const char * value, GucContext
* precise rules. Note that we don't want to throw errors if we're
* in the SIGHUP context. In that case we just ignore the attempt.
*/
- if (record->context == PGC_POSTMASTER && context != PGC_POSTMASTER)
+ if (record->context == PGC_POSTMASTER && context != PGC_POSTMASTER)
{
if (context != PGC_SIGHUP)
elog(ERROR, "'%s' cannot be changed after server start", name);
@@ -607,83 +612,83 @@ set_config_option(const char * name, const char * value, GucContext
/*
* Evaluate value and set variable
*/
- switch(type)
- {
- case PGC_BOOL:
+ switch(type)
+ {
+ case PGC_BOOL:
{
struct config_bool * conf = (struct config_bool *)record;
- if (value)
- {
+ if (value)
+ {
bool boolval;
- if (!parse_bool(value, &boolval))
+ if (!parse_bool(value, &boolval))
{
elog(elevel, "option '%s' requires a boolean value", name);
return false;
}
if (DoIt)
*conf->variable = boolval;
- }
- else if (DoIt)
- *conf->variable = conf->default_val;
- break;
+ }
+ else if (DoIt)
+ *conf->variable = conf->default_val;
+ break;
}
case PGC_INT:
- {
- struct config_int * conf = (struct config_int *)record;
+ {
+ struct config_int * conf = (struct config_int *)record;
- if (value)
- {
- int intval;
+ if (value)
+ {
+ int intval;
- if (!parse_int(value, &intval))
+ if (!parse_int(value, &intval))
{
- elog(elevel, "option '%s' expects an integer value", name);
+ elog(elevel, "option '%s' expects an integer value", name);
return false;
}
- if (intval < conf->min || intval > conf->max)
+ if (intval < conf->min || intval > conf->max)
{
- elog(elevel, "option '%s' value %d is outside"
+ elog(elevel, "option '%s' value %d is outside"
" of permissible range [%d .. %d]",
name, intval, conf->min, conf->max);
return false;
}
if (DoIt)
*conf->variable = intval;
- }
- else if (DoIt)
- *conf->variable = conf->default_val;
- break;
- }
+ }
+ else if (DoIt)
+ *conf->variable = conf->default_val;
+ break;
+ }
case PGC_REAL:
- {
- struct config_real * conf = (struct config_real *)record;
+ {
+ struct config_real * conf = (struct config_real *)record;
- if (value)
- {
- double dval;
+ if (value)
+ {
+ double dval;
- if (!parse_real(value, &dval))
+ if (!parse_real(value, &dval))
{
- elog(elevel, "option '%s' expects a real number", name);
+ elog(elevel, "option '%s' expects a real number", name);
return false;
}
- if (dval < conf->min || dval > conf->max)
+ if (dval < conf->min || dval > conf->max)
{
- elog(elevel, "option '%s' value %g is outside"
+ elog(elevel, "option '%s' value %g is outside"
" of permissible range [%g .. %g]",
name, dval, conf->min, conf->max);
return false;
}
if (DoIt)
*conf->variable = dval;
- }
- else if (DoIt)
- *conf->variable = conf->default_val;
- break;
- }
+ }
+ else if (DoIt)
+ *conf->variable = conf->default_val;
+ break;
+ }
case PGC_STRING:
{
@@ -727,7 +732,7 @@ set_config_option(const char * name, const char * value, GucContext
}
default: ;
- }
+ }
return true;
}
@@ -759,35 +764,35 @@ SetConfigOption(const char * name, const char * value, GucContext
const char *
GetConfigOption(const char * name)
{
- struct config_generic * record;
+ struct config_generic * record;
static char buffer[256];
enum config_type opttype;
- opttype = find_option(name, &record);
+ opttype = find_option(name, &record);
if (opttype == PGC_NONE)
elog(ERROR, "Option '%s' is not recognized", name);
switch(opttype)
- {
- case PGC_BOOL:
- return *((struct config_bool *)record)->variable ? "on" : "off";
+ {
+ case PGC_BOOL:
+ return *((struct config_bool *)record)->variable ? "on" : "off";
- case PGC_INT:
+ case PGC_INT:
snprintf(buffer, 256, "%d", *((struct config_int *)record)->variable);
return buffer;
- case PGC_REAL:
+ case PGC_REAL:
snprintf(buffer, 256, "%g", *((struct config_real *)record)->variable);
return buffer;
case PGC_STRING:
return *((struct config_string *)record)->variable;
- default:
+ default:
;
- }
- return NULL;
-}
+ }
+ return NULL;
+}
@@ -838,7 +843,7 @@ ParseLongOption(const char * string, char ** name, char ** value)
#ifdef ENABLE_SYSLOG
-bool
+bool
check_facility(const char *facility)
{
if (strcasecmp(facility,"LOCAL0") == 0) return true;
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 40a4346fe1c..223360693b4 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -18,3 +18,153 @@
# Any option can also be given as a command line switch to the
# postmaster, e.g., 'postmaster -c log_connections=on'. Some options
# can be set at run-time with the 'SET' SQL command.
+
+
+#========================================================================
+
+
+#
+# Connection Parameters
+#
+#tcpip_socket = false
+#ssl = false
+
+#max_connections = 32 # 1-1024
+
+#port = 5432
+#hostname_lookup = false
+#show_source_port = false
+
+#unix_socket_directory = ""
+#unix_socket_group = ""
+#unix_socket_permissions = 0777
+
+#virtual_host = ""
+
+#krb_server_keyfile = ""
+
+
+#
+# Performance
+#
+#sort_mem = 512
+#shared_buffers = 2*max_connections # min 16
+#fsync = true
+
+
+#
+# Optimizer Parameters
+#
+#enable_seqscan = true
+#enable_indexscan = true
+#enable_tidscan = true
+#enable_sort = true
+#enable_nestloop = true
+#enable_mergejoin = true
+#enable_hashjoin = true
+
+#ksqo = false
+#geqo = true
+
+#effective_cache_size = 1000 # default in 8k pages
+#random_page_cost = 4
+#cpu_tuple_cost = 0.01
+#cpu_index_tuple_cost = 0.001
+#cpu_operator_cost = 0.0025
+#geqo_selection_bias = 2.0 # range 1.5-2.0
+
+
+#
+# GEQO Optimizer Parameters
+#
+#geqo_threshold = 11
+#geqo_pool_size = 0 #default based in tables, range 128-1024
+#geqo_effort = 1
+#geqo_generations = 0
+#geqo_random_seed = -1 # auto-compute seed
+
+
+#
+# Inheritance
+#
+#sql_inheritance = true
+
+
+#
+# Deadlock
+#
+#deadlock_timeout = 1000
+
+
+#
+# Expression Depth Limitation
+#
+#max_expr_depth = 10000 # min 10
+
+
+#
+# Write-ahead log (WAL)
+#
+#wal_buffers = 8 # min 4
+#wal_files = 0 # range 0-64
+#wal_debug = 0 # range 0-16
+#commit_delay = 5 # range 0-1000
+#checkpoint_timeout = 300 # range 30-1800
+
+
+#
+# Debug display
+#
+#silent_mode = false
+
+#log_connections = false
+#log_timestamp = false
+#log_pid = false
+
+#debug_level = 0 # range 0-16
+
+#debug_print_query = false
+#debug_print_parse = false
+#debug_print_rewritten = false
+#debug_print_plan = false
+#debug_pretty_print = false
+
+#ifdef USE_ASSERT_CHECKING
+#debug_assertions = true
+#endif
+
+
+#
+# Syslog
+#
+#ifdef ENABLE_SYSLOG
+#syslog = 0 # range 0-2
+#syslog_facility = "LOCAL0"
+#syslog_ident = "postgres"
+#endif
+
+
+#
+# Statistics
+#
+#show_parser_stats = false
+#show_planner_stats = false
+#show_executor_stats = false
+#show_query_stats = false
+#ifdef BTREE_BUILD_STATS
+#show_btree_build_stats = false
+#endif
+
+
+#
+# Lock Tracing
+#
+#trace_notify = false
+#ifdef LOCK_DEBUG
+#trace_locks = false
+#trace_userlocks = false
+#trace_spinlocks = false
+#debug_deadlocks = false
+#trace_lock_oidmin = 16384
+#trace_lock_table = 0
+#endif
diff --git a/src/include/optimizer/cost.h b/src/include/optimizer/cost.h
index 0f198eb2b3b..1a78abdb107 100644
--- a/src/include/optimizer/cost.h
+++ b/src/include/optimizer/cost.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: cost.h,v 1.35 2000/10/05 19:48:33 momjian Exp $
+ * $Id: cost.h,v 1.36 2001/01/24 18:37:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -18,6 +18,7 @@
/* defaults for costsize.c's Cost parameters */
/* NB: cost-estimation code should use the variables, not these constants! */
+/* If you change these, update backend/utils/misc/postgresql.sample.conf */
#define DEFAULT_EFFECTIVE_CACHE_SIZE 1000.0 /* measured in pages */
#define DEFAULT_RANDOM_PAGE_COST 4.0
#define DEFAULT_CPU_TUPLE_COST 0.01
diff --git a/src/include/optimizer/geqo.h b/src/include/optimizer/geqo.h
index e22d70badd9..69e5469d9d7 100644
--- a/src/include/optimizer/geqo.h
+++ b/src/include/optimizer/geqo.h
@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: geqo.h,v 1.21 2000/09/19 18:42:32 tgl Exp $
+ * $Id: geqo.h,v 1.22 2001/01/24 18:37:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -45,6 +45,7 @@
/*
* Configuration options
*/
+/* If you change these, update backend/utils/misc/postgresql.sample.conf */
extern int Geqo_pool_size;
#define DEFAULT_GEQO_POOL_SIZE 0 /* = default based on no. of relations. */
#define MIN_GEQO_POOL_SIZE 128
@@ -54,6 +55,7 @@ extern int Geqo_effort; /* 1 .. inf, only used to calculate generations
extern int Geqo_generations; /* 1 .. inf, or 0 to use default based on pool size */
extern double Geqo_selection_bias;
+/* If you change these, update backend/utils/misc/postgresql.sample.conf */
#define DEFAULT_GEQO_SELECTION_BIAS 2.0
#define MIN_GEQO_SELECTION_BIAS 1.5
#define MAX_GEQO_SELECTION_BIAS 2.0
diff --git a/src/include/optimizer/paths.h b/src/include/optimizer/paths.h
index 167bea427ef..f57697f2c0c 100644
--- a/src/include/optimizer/paths.h
+++ b/src/include/optimizer/paths.h
@@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: paths.h,v 1.49 2000/12/14 22:30:45 tgl Exp $
+ * $Id: paths.h,v 1.50 2001/01/24 18:37:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -18,6 +18,7 @@
#include "nodes/relation.h"
/* default GEQO threshold (default value for geqo_rels) */
+/* If you change this, update backend/utils/misc/postgresql.sample.conf */
#define DEFAULT_GEQO_RELS 11
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-02 19:25:19 +0000