From: Joel Fradkin <jfradkin@wazagua.com>
To: 'KÖPFERL Robert' <robert.koepferl@sonorys.at>
To: pgsql-sql@postgresql.org
Subject: Re: trying to do an update a bit confused.
Date: Tue, 19 Apr 2005 12:57:28 -0400
Message-ID: <000001c54500$df3c1360$797ba8c0@jfradkin> (raw)
In-Reply-To: <ED4E30DD9C43D5118DFB00508BBBA76EB166C0@neptun.sonorys.at>
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:jfradkin@wazagua.com]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: jfradkin@wazagua.com, robert.koepferl@sonorys.at
Subject: Re: trying to do an update a bit confused.
In-Reply-To: <000001c54500$df3c1360$797ba8c0@jfradkin>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox