Re: sloooow query

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: <marie(dot)tuite(at)edisonaffiliates(dot)com>, <pgsql-performance(at)postgresql(dot)org>
Subject: Re: sloooow query
Date: 2002-10-07 20:12:21
Message-ID: 200210071312.21476.josh@agliodbs.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general pgsql-performance


Marie,

> I pg_dumped the first database having performance problems and reloaded it
> into a new database on the same server. The query ran normally when I
> reloaded it. There is no difference in hardware, schema or anything else.

That's a pretty brutal query.

From the comparison between the two queries, it looks like you have a lot of
discarded rows cluttering up the original database, just like I did.

What happens if you run VACUUM FULL VERBOSE on the Bad database? Does it
report lots of rows taken up?

--
-Josh Berkus

______AGLIO DATABASE SOLUTIONS___________________________
Josh Berkus
Complete information technology josh(at)agliodbs(dot)com
and data management solutions (415) 565-7293
for law firms, small businesses fax 621-2533
and non-profit organizations. San Francisco

In response to

Responses

Browse pgsql-general by date

  From Date Subject
Next Message Justin Clift 2002-10-07 20:15:35 Re: sloooow query
Previous Message Roberto (SmartBit) 2002-10-07 20:08:49 firstest doubts...

Browse pgsql-performance by date

  From Date Subject
Next Message Justin Clift 2002-10-07 20:15:35 Re: sloooow query
Previous Message Marie G. Tuite 2002-10-07 19:53:35 Re: sloooow query