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From: Christoph Haller <ch@rodos.fzk.de>
To: pgsql-sql@postgresql.org
Cc: kevin@meridianis.com
Subject: Re: Another sub-select problem...
Date: Fri, 23 May 2003 13:00:14 +0200
Message-ID: <3ECDFF3E.22794F33@rodos.fzk.de> (raw)

>
> The "IN(id_list)" portion is derived from a PHP-based recursive query
> and is passed into postgres based on user input--always a different
list
> of ID's.  This seems to rule out a "JOIN" as an alternative query type

> which has been the general suggestion for avoiding the infamous "IN"
> issue which you are working on for 7.4.
>
You've seen several alternatives already, but my approach would be to
populate a temp table with the PHP-based recursive query id_list
(the COPY command offers a fast way to do so), and then JOIN on
that temp table.

Regards, Christoph





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