| From: | David Fetter <david(at)fetter(dot)org> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Rod Taylor <rod(dot)taylor(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Could regexp_matches be immutable? |
| Date: | 2009-10-14 21:07:34 |
| Message-ID: | 20091014210734.GA14790@fetter.org |
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| Lists: | pgsql-hackers |
On Wed, Oct 14, 2009 at 04:51:03PM -0400, Tom Lane wrote:
> Rod Taylor <rod(dot)taylor(at)gmail(dot)com> writes:
> > I tried making a functional index based on an expression
> > containing the 2 argument regexp_matches() function. Is there a
> > reason why this function is not marked immutable instead of
> > normal?
>
> regex_flavor affects its result.
Speaking of which, can we see about deprecating and removing this GUC?
I've yet to hear of anyone using a flavor other than the default.
Cheers,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
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