pgsql: Fix incomplete backpatch of pg_multixact truncation changes to < - Mailing list pgsql-committers

From Alvaro Herrera
Subject pgsql: Fix incomplete backpatch of pg_multixact truncation changes to <
Date
Msg-id E1VnXK4-0000KQ-8f@gemulon.postgresql.org
Whole thread Raw
List pgsql-committers
Fix incomplete backpatch of pg_multixact truncation changes to <= 9.2

The backpatch of a95335b544d9c8377e9dc7a399d8e9a155895f82 to 9.2, 9.1
and 9.0 was incomplete, missing changes to xlog.c, primarily the call
to TrimMultiXact(). Testing presumably didn't show a problem without
these changes because TrimMultiXact() performs defense-in-depth work,
which is not strictly necessary.

It also missed moving StartupMultiXact() which would have been
problematic if a restartpoing happened in exactly the wrong moment,
causing a transient error.

Andres Freund

Branch
------
REL9_1_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/0176f8bea436e166654fb3e5d2d8a1ff42552f7a

Modified Files
--------------
src/backend/access/transam/xlog.c |   13 ++++++++++---
src/include/access/multixact.h    |    1 +
2 files changed, 11 insertions(+), 3 deletions(-)


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