Re: BUG #5816: index not used in function

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: <pgsql-bugs(at)postgresql(dot)org>,"frank" <frank(at)ros-i(dot)com>
Subject: Re: BUG #5816: index not used in function
Date: 2011-01-06 17:50:18
Message-ID: 4D25AC7A0200002500039079@gw.wicourts.gov
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"frank" <frank(at)ros-i(dot)com> wrote:

> WHERE upper("thisColumn") like $1

The function's plan is kept from one execution to another, and it
can't know what will be in the first parameter -- perhaps '%X%'? If
you build up the statement in a string and EXECUTE it, you might get
the desired behavior.

Anyway, next time you have an issue like this, please post to the
performance list; this is not a bug.

-Kevin

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