From: Adam Erickson <adamre@cox.net>
To: pgsql-novice@postgresql.org
Subject: Aggregates and Indexes
Date: Fri, 2 Aug 2002 13:20:34 -0500
Message-ID: <ALEKKHACBIAEBNBPFKPCCEFHEDAA.adamre@cox.net> (raw)
In-Reply-To: <E2870D8CE1CCD311BAF50008C71EDE8E01F7494F@MAIL_EXCHANGE>
Their has been some discussion regarding aggregate functions and indexes.
It's clear that aggregate functions will not take advantage of any indexes.
(ie. SELECT sum(number) FROM table WHERE type=BLAH will not take advantage
of 'type' being indexed.)
I do a lot of reporting based on such SQL statements. Counting rows from
large datasets. Since the PG gurus don't seem to think this is such a big
deal can someone enlighten me as to why?
Thanks,
Adam Erickson
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To: pgsql-sql@postgresql.org
Cc: adamre@cox.net, pgsql-novice@postgresql.org
Subject: Re: Aggregates and Indexes
In-Reply-To: <ALEKKHACBIAEBNBPFKPCCEFHEDAA.adamre@cox.net>
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