pgsql: Add indisreplident to fields refreshed by RelationReloadIndexInf

Add indisreplident to fields refreshed by RelationReloadIndexInfo()

RelationReloadIndexInfo() is a fast-path used for index reloads in the
relation cache, and it has always forgotten about updating
indisreplident, which is something that would happen after an index is
selected for a replica identity.  This can lead to incorrect cache
information provided when executing a command in a transaction context
that updates indisreplident.

None of the code paths currently on HEAD that need to check upon
pg_index.indisreplident fetch its value from the relation cache, always
relying on a fresh copy on the syscache.  Unfortunately, this may not be
the case of out-of-core code, that could see out-of-date value.

Author: Shruthi Gowda
Reviewed-by: Robert Haas, Dilip Kumar, Michael Paquier
Discussion: https://postgr.es/m/CAASxf_PBcxax0wW-3gErUyftZ0XrCs3Lrpuhq4-Z3Fak1DoW7Q@mail.gmail.com
Backpatch-through: 11

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/a5ea825f958c2de9fadb825cbf16bf9b1360f0df

Modified Files
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src/backend/utils/cache/relcache.c | 1 +
1 file changed, 1 insertion(+)