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(parent: 4b61f67) | 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 08:16:31 +0000 (10:16 +0200)
commitea2bb1b47d7629a17dbc0c7da66cf063f8d3a768
treed363c555729b6e47bc98a96359a95f9b039d78c3tree | snapshot
parent4b61f6783793a362423e511d76027e5983fc241ccommit | 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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