diff options
Diffstat (limited to 'src/backend/utils/misc/guc.c')
| -rw-r--r-- | src/backend/utils/misc/guc.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index 738e2152ba8..92391eda2fd 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -502,6 +502,7 @@ const char *const GucContext_Names[] = 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", @@ -3269,6 +3270,7 @@ static int GUCNestLevel = 0; /* 1 when in main transaction */ static int guc_var_compare(const void *a, const void *b); static int guc_name_compare(const char *namea, const char *nameb); +static void InitializeGUCOptionsFromEnvironment(void); static void InitializeOneGUCOption(struct config_generic * gconf); static void push_old_value(struct config_generic * gconf, GucAction action); static void ReportGUCOption(struct config_generic * record); @@ -3812,8 +3814,6 @@ void InitializeGUCOptions(void) { int i; - char *env; - long stack_rlimit; /* * Before log_line_prefix could possibly receive a nonempty setting, make @@ -3852,9 +3852,25 @@ InitializeGUCOptions(void) /* * For historical reasons, some GUC parameters can receive defaults from - * environment variables. Process those settings. NB: if you add or - * remove anything here, see also ProcessConfigFile(). + * environment variables. Process those settings. */ + InitializeGUCOptionsFromEnvironment(); +} + +/* + * Assign any GUC values that can come from the server's environment. + * + * This is called from InitializeGUCOptions, and also from ProcessConfigFile + * to deal with the possibility that a setting has been removed from + * postgresql.conf and should now get a value from the environment. + * (The latter is a kludge that should probably go away someday; if so, + * fold this back into InitializeGUCOptions.) + */ +static void +InitializeGUCOptionsFromEnvironment(void) +{ + char *env; + long stack_rlimit; env = getenv("PGPORT"); if (env != NULL) @@ -6334,6 +6350,7 @@ define_custom_variable(struct config_generic * variable) switch (pHolder->gen.source) { case PGC_S_DEFAULT: + case PGC_S_DYNAMIC_DEFAULT: case PGC_S_ENV_VAR: case PGC_S_FILE: case PGC_S_ARGV: @@ -8420,15 +8437,13 @@ assign_timezone_abbreviations(const char *newval, void *extra) * * 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. */ void pg_timezone_abbrev_initialize(void) { - if (timezone_abbreviations_string == NULL) - { - SetConfigOption("timezone_abbreviations", "Default", - PGC_POSTMASTER, PGC_S_DEFAULT); - } + SetConfigOption("timezone_abbreviations", "Default", + PGC_POSTMASTER, PGC_S_DYNAMIC_DEFAULT); } static const char * |