Oh, I forgot to mention one thing. When creating a constraint, an index OID is normally given. I'm not sure what is this for. In the patch it's a little convoluted to get the correct index OID, so I'm just passing InvalidOid. Things work nonetheless. I wonder if we shouldn't just do away with the index OID. There are several /*FIXME*/ notes in the code due to this.
-- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
