| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| 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: | 2009-10-21 09:57:45 |
| Message-ID: | 1256119065.12996.0.camel@fsopti579.F-Secure.com |
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| Thread: | |
| Lists: | pgsql-hackers |
On Tue, 2009-10-20 at 20:48 -0400, Tom Lane wrote:
> So I went to see about making the changes to remove regex_flavor, and
> was astonished to find that all the regex-related functions are already
> marked immutable, and AFAICS always have been. This is clearly wrong,
> and we would have to fix it if we weren't about to remove the GUC.
> (In principle we should advise people to change the markings in existing
> databases, but given the lack of complaints it's probably not worth the
> trouble --- I doubt many applications change regex_flavor on the fly.)
Are you sure this wasn't intentional, because it breaks performance and
we doubted that many applications would change regex_flavor on the fly?
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