Andrew Dunstan <and...@dunslane.net> writes: > Another thought: could we add a column to pg_type with a flag that's > true if the oids are in sort order? Then the comparison routines could > just look that up in the type cache and if it's true (as it often will > be) just return the oid comparison.
Well, having to do a cache lookup already makes it a couple orders of magnitude more expensive than an OID comparison. However, it's hard to say how much that matters in terms of total application performance. We really could do with a bit of performance testing here ... 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