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Avoid hot standby cancels from VAC FREEZE
authorAlvaro Herrera <alvherre@alvh.no-ip.org>
Wed, 25 May 2016 23:39:49 +0000 (19:39 -0400)
committerAlvaro Herrera <alvherre@alvh.no-ip.org>
Wed, 25 May 2016 23:39:49 +0000 (19:39 -0400)
commit294509ea9bb3305230659fd76bd355aec6fcd039
tree820c1c48cbaec6aae01aed034cc16c1aab489213tree | snapshot
parent4cf0978ea2733548149ee7f11e588975daaf7609commit | diff
Avoid hot standby cancels from VAC FREEZE

VACUUM FREEZE generated false cancelations of standby queries on an
otherwise idle master. Caused by an off-by-one error on cutoff_xid
which goes back to original commit.

Analysis and report by Marco Nenciarini

Bug fix by Simon Riggs

This is a correct backpatch of commit 66fbcb0d2e to branches 9.1 through
9.4.  That commit was backpatched to 9.0 originally, but it was
immediately reverted in 9.0-9.4 because it didn't compile.
src/backend/access/heap/heapam.c diff | blob | blame | history
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