On Wed, Apr 27, 2011 at 12:23 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Any ideas about better answers? >
Here's a crazy idea. We could use string equality of the out function's representation instead. If an output function doesn't consistently output the same data for things that are equal or different data for things that aren't equal then there's a bug in it already since it means the data type won't survive a pg_dump/reload. That alone wouldn't help since the output function could also depend on being in a transaction but whenever we build the Const datum we must be in a transaction, so we could store a string representation in the Const datum and then when we need to do equal() just compare those string representations... I think this still performs terribly and it wastes lots of memory (and I would assume space in rule representations?) so I think it's just a crazy idea, but since you're asking.... -- greg -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
