> Is is possible to query from my application whether there is a primary > key or unique constraint on a given table and field name(s)?
Curiously enough, I just answered a similar question on the pgsql-admin list. Try this: SELECT c.relname as table, r.conname as contraint_name, r.contype as contraint_type, pg_catalog.pg_get_constraintdef(r.oid, true) as constraint_definition FROM pg_catalog.pg_constraint r, pg_catalog.pg_class c WHERE c.oid = r.conrelid; Bye, Chris -- Chris Mair http://www.1006.org ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly