Re: [SQL] trying to do an update a bit confused.

[Joel Fradkin]

I am not updating 1 record. I have : WHERE m.caseid = tblcase.caseid AND m.clientnum::text = tblcase.clientnum::text) Which should do the aggregate on the record that is being updated (least as I understood it). It should update all record in case with either 0 if there are no merchandise records or do a sum of the merch records for the case being updated.   Joel   I also never heard back on the merge join issue (why do I need to specify them off on one machine and it runs faster on the other). I am guessing it is memory related and config related, but I am about to give up on postgres as I am just not getting all my views to run fast enough. You guys could say my views are bad SQL design etc, but they run fine in MSSQL. I don’t mind visiting each one to make them better, but I am just not able to increase the speed on all of them. The last one about assoc finally did run in 3 secs with merge joins off which is pretty fast, but now I have others that seem pretty simple to me and yet run very slow.     You're most probably missing a Where clause after the parentensis. see: -----Original Message----- From: Joel Fradkin [mailto:[EMAIL PROTECTED] Sent: Dienstag, 19. April 2005 16:06 To: pgsql-sql@postgresql.org Subject: [SQL] trying to do an update a bit confused. update tblcase  set merchandisetotal = ( COALESCE(( SELECT sum(m.quantity::numeric * m.amount) AS merchandiseamount            FROM tblmerchandise m           WHERE m.caseid = tblcase.caseid AND m.clientnum::text = tblcase.clientnum::text), 0.0) )  WHERE <condtion that selects one record>;     I tried running the above and it wants to do a sum on all the records in tblcase instead of just the one being updated, what am I doing wrong?   Joel Fradkin