From: Tom Lane <tgl@sss.pgh.pa.us>
To: Kevin Grittner <Kevin.Grittner@wicourts.gov>
Cc: jesper@krogh.cc
Cc: pgsql-performance@postgresql.org
Cc: oleg@sai.msu.su
Cc: teodor@sigaev.ru
Subject: Re: Queryplan within FTS/GIN index -search.
Date: Mon, 02 Nov 2009 19:18:02 -0500
Message-ID: <11587.1257207482@sss.pgh.pa.us> (raw)
In-Reply-To: <4AEF0369020000250002C183@gw.wicourts.gov>
References: <4AEF0369020000250002C183@gw.wicourts.gov>
"Kevin Grittner" <Kevin.Grittner@wicourts.gov> writes:
> Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Any sane text search application is going to try to filter out
>> common words as stopwords; it's only the failure to do that that's
>> making this run slow.
> I'd rather have the index used for the selective test, and apply the
> remaining tests to the rows retrieved from the heap.
Uh, that was exactly my point. Indexing common words is a waste.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, Kevin.Grittner@wicourts.gov, jesper@krogh.cc, oleg@sai.msu.su, teodor@sigaev.ru
Subject: Re: Queryplan within FTS/GIN index -search.
In-Reply-To: <11587.1257207482@sss.pgh.pa.us>
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