> I have noticed that with a SELECT query containing the following
> constraint:
>
> column LIKE ?
>
> and an index on that column, PostgreSQL will not use the index
> even if the parameter doesn't contain special pattern characters
> such as %.
you should have a postgresql 8.3,isn't it ?
like is equal to "=" in your case, since 8.4
Also you probably want to have a look at
http://www.postgresql.org/docs/9.1/static/indexes-opclass.html
about your index definition (add the "text_pattern_ops" when required)
--
Cédric Villemain +33 (0)6 20 30 22 52
http://2ndQuadrant.fr/
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