Hi Peter,

Thanks for the tip.  The locale we're using is en_US.UTF-8.  From my limited
knowledge of locales, that's a non-C one isn't it?

Am I right in saying that to fix it I need to initdb again with a C locale?
How do I go about doing that on an environment with some 132 databases?

What a pain!

Chris

----- Original Message ----- 
From: "Peter Eisentraut" <[EMAIL PROTECTED]>
To: "Chris Cox" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Thursday, July 22, 2004 10:41 PM
Subject: Re: [SQL] LIKE on index not working


> Am Donnerstag, 22. Juli 2004 09:38 schrieb Chris Cox:
> > For some reason I just can't get this to use the index for the following
> > query.  I'm using PostgreSQL 7.3.4.
>
> In 7.3, LIKE cannot use an index unless you set the locale to C.  In 7.4,
LIKE
> can use an index, but it has to be a different kind of index, as explained
> here:
>
> http://www.postgresql.org/docs/7.4/static/indexes-opclass.html
>
> -- 
> Peter Eisentraut
> http://developer.postgresql.org/~petere/
>



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TIP 9: the planner will ignore your desire to choose an index scan if your
      joining column's datatypes do not match

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