diff options
Diffstat (limited to 'src/backend/utils/misc/guc.c')
| -rw-r--r-- | src/backend/utils/misc/guc.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index d469de73e97..03594e77fee 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -486,6 +486,7 @@ int log_min_messages = WARNING; int client_min_messages = NOTICE; int log_min_duration_statement = -1; int log_temp_files = -1; +double log_statement_sample_rate = 1.0; int trace_recovery_messages = LOG; int temp_file_limit = -1; @@ -2642,7 +2643,8 @@ static struct config_int ConfigureNamesInt[] = {"log_min_duration_statement", PGC_SUSET, LOGGING_WHEN, gettext_noop("Sets the minimum execution time above which " "statements will be logged."), - gettext_noop("Zero prints all queries. -1 turns this feature off."), + gettext_noop("Zero prints all queries, subject to log_statement_sample_rate. " + "-1 turns this feature off."), GUC_UNIT_MS }, &log_min_duration_statement, @@ -3319,6 +3321,17 @@ static struct config_real ConfigureNamesReal[] = NULL, NULL, NULL }, + { + {"log_statement_sample_rate", PGC_SUSET, LOGGING_WHEN, + gettext_noop("Fraction of statements over log_min_duration_statement to log."), + gettext_noop("If you only want a sample, use a value between 0 (never " + "log) and 1.0 (always log).") + }, + &log_statement_sample_rate, + 1.0, 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 |