On Mon, Jun 15, 2009 at 11:34:38AM -0400, Tom Lane wrote: > David Fetter <[email protected]> writes: > > * It's going to a lot of trouble to allow for the possibility of both > > unordered results and of duplicate lines. If we disallow duplicate > > lines in unordered result sets, we can get a big speed gain by using > > hash-based comparisons. > > Why not just sort the lines and compare?
Good point :) Cheers, David. -- David Fetter <[email protected]> http://fetter.org/ Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter Skype: davidfetter XMPP: [email protected] Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate -- Sent via pgsql-hackers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
