On 2013-12-04 20:25:53 -0500, Tom Lane wrote: > Tatsuo Ishii <is...@sraoss.co.jp> writes: > > I would like to add a variant of regclass, which is exactly same as > > current regclass except it does not raise an error when the target > > table is not found. Instead it returns InvalidOid (0). > > I've sometimes thought we should just make all the reg* input converters > act that way. It's not terribly consistent that they'll happily take > numeric inputs that don't correspond to any existing OID. And more > often than not, I've found the throw-an-error behavior to be annoying > not helpful.
I find that to be a bit of a scary change. I have seen application check for the existance of tables using the error thrown by ::regclass. Now, they could change that to check for IS NULL which would be better for them performancewise, but the likelihood they will notice in time seems small. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
