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When reloading postgresql.conf, log what parameters actually changed

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This commit is contained in:
Peter Eisentraut 2009-09-17 20:54:03 +00:00
parent 488d70ab46
commit 44608aee04
1 changed files with 14 additions and 1 deletions
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15
src/backend/utils/misc/guc-file.l
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@ -4,7 +4,7 @@
* *
* Copyright (c) 2000-2009, PostgreSQL Global Development Group * Copyright (c) 2000-2009, PostgreSQL Global Development Group
* *
* $PostgreSQL: pgsql/src/backend/utils/misc/guc-file.l,v 1.59 2009/04/09 14:21:02 tgl Exp $ * $PostgreSQL: pgsql/src/backend/utils/misc/guc-file.l,v 1.60 2009/09/17 20:54:03 petere Exp $
*/ */
%{ %{
@ -283,6 +283,10 @@ ProcessConfigFile(GucContext context)
/* Now we can re-apply the wired-in default */ /* Now we can re-apply the wired-in default */
set_config_option(gconf->name, NULL, context, PGC_S_DEFAULT, set_config_option(gconf->name, NULL, context, PGC_S_DEFAULT,
GUC_ACTION_SET, true); GUC_ACTION_SET, true);
if (context == PGC_SIGHUP)
ereport(elevel,
(errmsg("parameter \"%s\" removed from configuration file, reset to default",
gconf->name)));
} }
/* /*
@ -309,9 +313,18 @@ ProcessConfigFile(GucContext context)
/* If we got here all the options checked out okay, so apply them. */ /* If we got here all the options checked out okay, so apply them. */
for (item = head; item; item = item->next) for (item = head; item; item = item->next)
{ {
char *pre_value = NULL;
if (context == PGC_SIGHUP)
pre_value = pstrdup(GetConfigOption(item->name));
if (set_config_option(item->name, item->value, context, if (set_config_option(item->name, item->value, context,
PGC_S_FILE, GUC_ACTION_SET, true)) PGC_S_FILE, GUC_ACTION_SET, true))
{ {
if (pre_value && strcmp(pre_value, GetConfigOption(item->name)) != 0)
ereport(elevel,
(errmsg("parameter \"%s\" changed to \"%s\"",
item->name, item->value)));
set_config_sourcefile(item->name, item->filename, set_config_sourcefile(item->name, item->filename,
item->sourceline); item->sourceline);
} }