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From: Hans-Jürgen Schönig <hs@cybertec.at>
To: pgsql-sql@postgresql.org
Subject: Re: select distinct too slow
Date: Mon, 04 Jun 2001 23:45:10 +0200
Message-ID: <3B1C0166.FC3E4CF5@cybertec.at> (raw)
References: <20010601123641.4c0d96c0.gry@ll.mit.edu>

Did you vacuum analyse your table after creating the index?
A solution for your problem would be to turn sequential scans ofd before querying the table.
This should work somehow like that:

myjava=# SET enable_seqscan TO 'off';
SET VARIABLE
myjava=# show enable_seqscan;
NOTICE:  enable_seqscan is off
SHOW VARIABLE

check out the docs for further information.

    Hans






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