diff options
| author | Alvaro Herrera | 2013-02-01 15:00:40 +0000 |
|---|---|---|
| committer | Alvaro Herrera | 2013-02-01 15:11:10 +0000 |
| commit | 275a86bed8a09d372eb8e02966a847f0321aaa32 (patch) | |
| tree | 1e8c4def1479477d2484b295fc2225b4ced7396c | |
| parent | 7c0e6cc961733189d92b593d9e1588909aae23ec (diff) | |
Fix typo in freeze_table_age implementation
The original code used freeze_min_age instead of freeze_table_age. The
main consequence of this mistake is that lowering freeze_min_age would
cause full-table scans to occur much more frequently, which causes
serious issues because the number of writes required is much larger.
That feature (freeze_min_age) is supposed to affect only how soon tuples
are frozen; some pages should still be skipped due to the visibility
map.
Backpatch to 8.4, where the freeze_table_age feature was introduced.
Report and patch from Andres Freund
| -rw-r--r-- | src/backend/commands/vacuum.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c index 76756dd1d1f..058128d6a44 100644 --- a/src/backend/commands/vacuum.c +++ b/src/backend/commands/vacuum.c @@ -436,7 +436,7 @@ vacuum_set_xid_limits(int freeze_min_age, * VACUUM schedule, the nightly VACUUM gets a chance to freeze tuples * before anti-wraparound autovacuum is launched. */ - freezetable = freeze_min_age; + freezetable = freeze_table_age; if (freezetable < 0) freezetable = vacuum_freeze_table_age; freezetable = Min(freezetable, autovacuum_freeze_max_age * 0.95); |