Re: Regex query not using index - Mailing list pgsql-general

From Tom Lane
Subject Re: Regex query not using index
Date
Msg-id 29085.1203486336@sss.pgh.pa.us
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In response to Re: Regex query not using index  ("Postgres User" <postgres.developer@gmail.com>)
Responses Re: Regex query not using index
Re: Regex query not using index
List pgsql-general
"Postgres User" <postgres.developer@gmail.com> writes:
> Yes that works, but the whole point of the exercise is replace many OR
> statements with 1 regex expression.  So it's not what I'm looking for.

Unfortunately, Postgres is not as intelligent as you are.  There is
no mechanism to rewrite a multi-branch regex condition into multiple
indexscans.  I recommend going back to the OR's.

            regards, tom lane

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