Alvaro Herrera <alvhe...@2ndquadrant.com> writes: > Interesting. I wonder if it's possible that a relcache invalidation > would cause these values to get lost for some reason, because that would > be dangerous.
> I suppose the rationale is that this shouldn't happen because any > operation that does things this way must hold an exclusive lock on the > relation. But that doesn't guarantee that the relcache entry is > completely stable, It ABSOLUTELY is not safe. Relcache flushes can happen regardless of how strong a lock you hold. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers