Count locked pages that don't need vacuuming as scanned.
Previously, if VACUUM skipped vacuuming a page because it's pinned, it
didn't count that page as scanned. However, that meant that relfrozenxid
was not bumped up either, which prevented anti-wraparound vacuum from
doing its job.
Report by Миша Тюрин, analysis and patch by Sergey Burladyn and Jeff Janes.
Backpatch to 9.2, where the skip-locked-pages behavior was introduced.
Branch
------
REL9_2_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/3379263b6ded774acb96288d1e67caa37dcba0de
Modified Files
--------------
src/backend/commands/vacuumlazy.c | 1 +
1 file changed, 1 insertion(+)
