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(parent: f901bb5) | patch
Count locked pages that don't need vacuuming as scanned.
authorHeikki Linnakangas <heikki.linnakangas@iki.fi>
Mon, 18 Nov 2013 07:51:09 +0000 (09:51 +0200)
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>
Mon, 18 Nov 2013 07:51:09 +0000 (09:51 +0200)
commit4c697d8f4845823a8af67788b219ffa4516ad14c
treef1a2c0858f3e6cceaba1a8c2efd48ee947c4daeftree | snapshot
parentf901bb50e33ad95593bb68f7b3b55eb2e47607dccommit | diff
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.
src/backend/commands/vacuumlazy.c diff | blob | history
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