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(parent: fd2ba21) | patch
Fix logic in lazy vacuum to decide if it's worth trying to truncate the heap.
authorHeikki Linnakangas <[email protected]>
Tue, 6 Jan 2009 14:56:03 +0000 (14:56 +0000)
committerHeikki Linnakangas <[email protected]>
Tue, 6 Jan 2009 14:56:03 +0000 (14:56 +0000)
commit6b6593e36f1537f95d89999e9a92382fcb72ec00
tree7029d7163a417df231154a90325e16883a5d076dtree
parentfd2ba212fb35ee5de902fc3e8e0e1a5dc7ebc143commit | 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 | blame | history
Bernd Helmle's repository