Hello. Is it possible to change an FK constraint from NOT DEFERRABLE (the default) to DEFERRABLE without dropping and re-creating it? One idea that came up was to create a parallel set of constraints which perform the same checks as the existing ones as DEFERRABLE (and then drop the old set), but the objection there was that it'd lock the tables during the initial check.
We're having a fairly serious deadlock issue and the thinking goes that Tom's suggestion here http://www.webservertalk.com/archive139-2004-8-364172.html to defer FK checks until transaction commit would maybe help. Right now we can't try this because all the FK checks where created with default settings. We'd like to avoid taking the database down for recreating foreign keys. Regards, Frank ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
