ts_rank vs ts_rank_cd

From: Mark <Marek(dot)Balgar(at)seznam(dot)cz>
To: pgsql-general(at)postgresql(dot)org
Subject: ts_rank vs ts_rank_cd
Date: 2011-05-10 18:53:54
Message-ID: 1305053634304-4385337.post@n5.nabble.com
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Hi I have tested ts_rank and ts_rank_cd for searching in Wikipedia. I would
like to know which of them is better for searching in wikipedia. I have read
something like that ts_rank_cd is better for long sentences, oposite ts_rank
is better for single terms. But generally which of them is better to use ?
Thanks for reply.
Mark

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