Function RelationCacheInvalidateEntry

src/backend/utils/cache/relcache.c:2999–3019

* RelationCacheInvalidateEntry * * This routine is invoked for SI cache flush messages. * * Any relcache entry matching the relid must be flushed. (Note: caller has * already determined that the relid belongs to our database or is a shared * relation.) * * We used to skip local relations, on the grounds that they could * not be targets of cross-backend SI update messages; but it seems

 * local and nonlocal relations.
 */
void
RelationCacheInvalidateEntry(Oid relationId)
{
	Relation	relation;

	RelationIdCacheLookup(relationId, relation);

	if (PointerIsValid(relation))
	{
		relcacheInvalsReceived++;
		RelationFlushRelation(relation);
	}
	else
	{
		int			i;

		for (i = 0; i < in_progress_list_len; i++)
			if (in_progress_list[i].reloid == relationId)
				in_progress_list[i].invalidated = true;
	}
}

/*
 * RelationCacheInvalidate