pgsql: Fix masking of SP-GiST pages during xlog consistency check

From: Alexander Korotkov <akorotkov(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Fix masking of SP-GiST pages during xlog consistency check
Date: 2020-06-20 14:37:08
Message-ID: E1jmecG-0004WU-Di@gemulon.postgresql.org
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Fix masking of SP-GiST pages during xlog consistency check

spg_mask() didn't take into account that pd_lower equal to SizeOfPageHeaderData
is still valid value. This commit fixes that. Backpatch to 11, where
spg_mask() pg_lower check was introduced.

Reported-by: Michael Paquier
Discussion: https://postgr.es/m/20200615131405.GM52676%40paquier.xyz
Backpatch-through: 11

Branch
------
REL_12_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/396a44a0153657bd4f5385b184b66b7ada8682ca

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

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