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(parent: c8fad37) | patch
Fix logic in lazy vacuum to decide if it's worth trying to truncate the heap.
authorHeikki Linnakangas <heikki.linnakangas@iki.fi>
Tue, 6 Jan 2009 14:55:44 +0000 (14:55 +0000)
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>
Tue, 6 Jan 2009 14:55:44 +0000 (14:55 +0000)
commit1f2e2aa4fcd3068e38e6e42f4fd2ec40b8b05d27
treeafba90ec5d53f318c257c64bf7f720562e085featree | snapshot
parentc8fad375dbd795a961c77bc9272e80432c4e8bf1commit | diff
Fix logic in lazy vacuum to decide if it's worth trying to truncate the heap.
If the table was smaller than REL_TRUNCATE_FRACTION (= 16) pages, we always
tried to acquire AccessExclusiveLock on it even if there was no empty pages
at the end.

Report by Simon Riggs. Back-patch all the way to 7.4.
src/backend/commands/vacuumlazy.c diff | blob | history
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