Function RelationMapInvalidate

src/backend/utils/cache/relmapper.c:409–422

* RelationMapInvalidate * * This routine is invoked for SI cache flush messages. We must re-read * the indicated map file. However, we might receive a SI message in a * process that hasn't yet, and might never, load the mapping files; * for example the autovacuum launcher, which *must not* try to read * a local map since it is attached to no particular database. * So, re-read only if the

 * So, re-read only if the map is valid now.
 */
void
RelationMapInvalidate(bool shared)
{
	if (shared)
	{
		if (shared_map.magic == RELMAPPER_FILEMAGIC)
			load_relmap_file(true, false);
	}
	else
	{
		if (local_map.magic == RELMAPPER_FILEMAGIC)
			load_relmap_file(false, false);
	}
}

/*
 * RelationMapInvalidateAll