pgsql: Fix bug in WAL replay of COMMIT_TS_SETTS record.

From: Fujii Masao <fujii(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Fix bug in WAL replay of COMMIT_TS_SETTS record.
Date: 2021-03-25 02:26:47
Message-ID: E1lPFhv-0003An-Ui@gemulon.postgresql.org
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Fix bug in WAL replay of COMMIT_TS_SETTS record.

Previously the WAL replay of COMMIT_TS_SETTS record called
TransactionTreeSetCommitTsData() with the argument write_xlog=true,
which generated and wrote new COMMIT_TS_SETTS record.
This should not be acceptable because it's during recovery.

This commit fixes the WAL replay of COMMIT_TS_SETTS record
so that it calls TransactionTreeSetCommitTsData() with write_xlog=false
and doesn't generate new WAL during recovery.

Back-patch to all supported branches.

Reported-by: lx zou <zoulx1982(at)163(dot)com>
Author: Fujii Masao
Reviewed-by: Alvaro Herrera
Discussion: https://postgr.es/m/16931-620d0f2fdc6108f1@postgresql.org

Branch
------
REL_11_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/09cb8512ff11bd2c58b3d28bce9501e76bd12eff

Modified Files
--------------
src/backend/access/transam/commit_ts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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