Re: BUG #5816: index not used in function - Mailing list pgsql-bugs

From Kevin Grittner
Subject Re: BUG #5816: index not used in function
Date
Msg-id 4D25AC7A0200002500039079@gw.wicourts.gov
Whole thread Raw
In response to BUG #5816: index not used in function  ("frank" <frank@ros-i.com>)
Responses Re: BUG #5816: index not used in function  ("frank" <frank@ros-i.com>)
List pgsql-bugs
"frank" <frank@ros-i.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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