From: Franck Routier <franck.routier@axege.com>
To: pgsql-performance@postgresql.org
Subject: long lasting select, no io nor cpu usage ?
Date: Thu, 20 Mar 2014 14:51:45 +0100
Message-ID: <532AF271.4040903@axege.com> (raw)
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Hi,
I have a table (sanact) with 23.125.525 rows (and a hundred columns).
I am doing a select, that did not finish after some 15 hours... Select
is as follows:
select * from sanact where sanact___rfovsnide = 'MYVERSION' order by
sanactcsu;
There is an index on sanact___rfovsnide and doing EXPLAIN shows it is used.
Resulting dataset should be 1626000 rows.
iostat shows 99.5% idle disks, almost no activity.
top shows almost no cpu usage.
Where should I be looking for a problem ?
Thanks in advance,
Franck
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To: pgsql-performance@postgresql.org
Cc: franck.routier@axege.com
Subject: Re: long lasting select, no io nor cpu usage ?
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