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Fix data inconsistency between publisher and subscriber.

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We were not updating the partition map cache in the subscriber even when
the corresponding remote rel is changed. Due to this data was getting
incorrectly replicated for partition tables after the publisher has
changed the table schema.

Fix it by resetting the required entries in the partition map cache after
receiving a new relation mapping from the publisher.

Reported-by: Shi Yu
Author: Shi Yu, Hou Zhijie
Reviewed-by: Amit Langote, Amit Kapila
Backpatch-through: 13, where it was introduced
Discussion: https://postgr.es/m/OSZPR01MB6310F46CD425A967E4AEF736FDA49@OSZPR01MB6310.jpnprd01.prod.outlook.com
This commit is contained in:
Amit Kapila
2022-06-16 08:45:07 +05:30
parent ffffeebf24
commit b7658c24c7
4 changed files with 53 additions and 0 deletions
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3
src/backend/replication/logical/worker.c
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@@ -1562,6 +1562,9 @@ apply_handle_relation(StringInfo s)
rel = logicalrep_read_rel(s);
logicalrep_relmap_update(rel);
/* Also reset all entries in the partition map that refer to remoterel. */
logicalrep_partmap_reset_relmap(rel);
}
/*