On Tue, 28 Jun 2005 14:37:34 +1200, David Mitchell <[EMAIL PROTECTED]> wrote: > FOR transaction IN SELECT t.trans_id as ID > FROM pending_trans AS t WHERE fetched = false > ORDER BY trans_id LIMIT 50
What the the average number of statements per transaction? if avg > 2 then you could save a small amount of time by lowering the limit. You might also save some time by using FOR UPDATE on the select since the next thing you're going to do is update the value. > FOR statement IN SELECT s.id, s.transaction_id, s.table_name, s.op, > s.data > FROM dbmirror.pending_statement AS s > WHERE s.transaction_id = transaction.id > ORDER BY s.id ASC Have you explained this to make sure it's using the created index? You might need to order by both transaction_id, id. klint. +---------------------------------------+-----------------+ : Klint Gore : "Non rhyming : : EMail : [EMAIL PROTECTED] : slang - the : : Snail : A.B.R.I. : possibilities : : Mail University of New England : are useless" : : Armidale NSW 2351 Australia : L.J.J. : : Fax : +61 2 6772 5376 : : +---------------------------------------+-----------------+ ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
