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Avoid invalidating all RelationSyncCache entries on publication rename.

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On Publication rename, we need to only invalidate the RelationSyncCache
entries corresponding to relations that are part of the publication being
renamed.

As part of this patch, we introduce a new invalidation message to
invalidate the cache maintained by the logical decoding output plugin. We
can't use existing relcache invalidation for this purpose, as that would
unnecessarily cause relcache invalidations in other backends.

This will improve performance by building fewer relation cache entries
during logical replication.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Author: Shlok Kyal <shlok.kyal.oss@gmail.com>
Reviewed-by: Hou Zhijie <houzj.fnst@fujitsu.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Discussion: https://postgr.es/m/OSCPR01MB14966C09AA201EFFA706576A7F5C92@OSCPR01MB14966.jpnprd01.prod.outlook.com
This commit is contained in:
Amit Kapila
2025-03-13 09:03:45 +05:30
parent 75da2bece6
commit 3abe9dc188
10 changed files with 302 additions and 16 deletions
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8
src/backend/replication/pgoutput/pgoutput.c
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@ -531,6 +531,8 @@ pgoutput_startup(LogicalDecodingContext *ctx, OutputPluginOptions *opt,
CacheRegisterSyscacheCallback(PUBLICATIONOID,
publication_invalidation_cb,
(Datum) 0);
CacheRegisterRelSyncCallback(rel_sync_cache_relation_cb,
(Datum) 0);
publication_callback_registered = true;
}
@ -1789,12 +1791,6 @@ static void
publication_invalidation_cb(Datum arg, int cacheid, uint32 hashvalue)
{
publications_valid = false;
/*
* Also invalidate per-relation cache so that next time the filtering info
* is checked it will be updated with the new publication settings.
*/
rel_sync_cache_publication_cb(arg, cacheid, hashvalue);
}
/*