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Re: update queries taking lot of time

From: "Dann Corbit" <DCorbit(at)connx(dot)com>
To: "vinita bansal" <sagivini(at)hotmail(dot)com>,<pgsql-general(at)postgresql(dot)org>
Subject: Re: update queries taking lot of time
Date: 2005-02-24 18:40:23
Message-ID: (view raw or whole thread)
Lists: pgsql-general
Give the schema of your table.

Give the exact query/queries you are running.

Give the cardinality of the table.

-----Original Message-----
From: pgsql-general-owner(at)postgresql(dot)org
[mailto:pgsql-general-owner(at)postgresql(dot)org] On Behalf Of vinita bansal
Sent: Thursday, February 24, 2005 10:21 AM
To: pgsql-general(at)postgresql(dot)org
Subject: [GENERAL] update queries taking lot of time


I am running update query of the form "update tablename set x = y where 
exists (select .....)"
These queries are taking lots of time. I dropped all indices on the
which provided some improvement but not remarkable performance. I am
for ways to improve it. Can someone suggest what all can be done to
it. These queries are being executed from within a pl/pgsql function.

Vinita Bansal

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