diff options
Diffstat (limited to 'src/backend/utils/misc/guc_tables.c')
| -rw-r--r-- | src/backend/utils/misc/guc_tables.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/backend/utils/misc/guc_tables.c b/src/backend/utils/misc/guc_tables.c index b59a3de49c5..382c774b245 100644 --- a/src/backend/utils/misc/guc_tables.c +++ b/src/backend/utils/misc/guc_tables.c @@ -4034,6 +4034,16 @@ struct config_real ConfigureNamesReal[] = NULL, NULL, NULL }, + { + {"vacuum_max_eager_freeze_failure_rate", PGC_USERSET, VACUUM_FREEZING, + gettext_noop("Fraction of pages in a relation vacuum can scan and fail to freeze before disabling eager scanning."), + gettext_noop("A value of 0.0 disables eager scanning and a value of 1.0 will eagerly scan up to 100 percent of the all-visible pages in the relation. If vacuum successfully freezes these pages, the cap is lower than 100 percent, because the goal is to amortize page freezing across multiple vacuums.") + }, + &vacuum_max_eager_freeze_failure_rate, + 0.03, 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 |