From: Jan Kesten <jan.kesten@web.de>
To: pgsql-performance@postgresql.org
Subject: Re: index not used again
Date: Sun, 02 Apr 2006 18:20:16 +0200
Message-ID: <442FF9C0.2070702@web.de> (raw)
In-Reply-To: <20060331064252.J61282@megazone.bigpanda.com>
References: <442CF375.2080903@web.de>
<20060331064252.J61282@megazone.bigpanda.com>
Stephan Szabo schrieb:
> Did you reset the table contents between these two (remember that
> explain analyze actually runs the query)? The second appears to be
> changing no rows from the output.
I for myself did not, but as there are runnig automatic jobs
periodically I can't tell, if one ran in the time while I was testing
(but I guess not). At starting my tests all rows contained a zero for
all tokens and there should be no ones at all.
In my case rows with token set to one are really rare, about one of a
thousand rows. I looked for fast way to find therse rows.
I'll try again after a successful run - not resetting the token (not
using analyse this time).
Cheers,
Jan
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To: pgsql-performance@postgresql.org
Cc: jan.kesten@web.de
Subject: Re: index not used again
In-Reply-To: <442FF9C0.2070702@web.de>
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