| From: | Alban Hertroys <alban(at)magproductions(dot)nl> |
|---|---|
| To: | Jonathan Vanasco <postgres(at)2xlp(dot)com> |
| Cc: | pgsql general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: planning issue |
| Date: | 2007-03-19 10:05:44 |
| Message-ID: | 45FE6078.5030306@magproductions.nl |
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| Thread: | |
| Lists: | pgsql-general |
Jonathan Vanasco wrote:
> hoping someone may be able to offer advice:.
>
> SELECT
> *
> FROM
> table_a
> WHERE
> id != 10001
> AND
> (
> ( field_1 ilike '123' )
> OR
> ( field_2 ilike 'abc' )
> )
You seem to use that ilike expression merely as a case-insensitive
equals. May as well use that in combination with indices on
lower(field_[12]). It's probably faster than like or a regex match.
--
Alban Hertroys
alban(at)magproductions(dot)nl
magproductions b.v.
T: ++31(0)534346874
F: ++31(0)534346876
M:
I: www.magproductions.nl
A: Postbus 416
7500 AK Enschede
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