I wrote: > =?ISO-8859-1?Q?Christian_Schr=F6der?= <cs@xxxxxxxxx> writes: >> This is the query: >> select isin from ts_frontend.attachment_isins full OUTER JOIN >> ts_frontend.rec_isins using (attachment,isin) WHERE attachment=2698120 >> GROUP BY isin limit 1000; > Hmm. It seems 8.3 is failing to push the attachment=2698120 condition > down to the input relations. Not sure why. All that code got massively > rewritten in 8.3, but I thought it still understood about pushing > equalities through a full join ... I've applied a patch for this. It will be in 8.3.8, or if you're in a hurry you can grab it from our CVS server or here: http://archives.postgresql.org/message-id/20090416204228.579317540E2@xxxxxxxxxxxxxxxxxx regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general