From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
---|---|
To: | Jeremy Drake <pgsql(at)jdrake(dot)com> |
Cc: | Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Patches <pgsql-patches(at)postgresql(dot)org>, Neil Conway <neilc(at)samurai(dot)com>, David Fetter <david(at)fetter(dot)org> |
Subject: | Re: patch adding new regexp functions |
Date: | 2007-02-16 12:19:55 |
Message-ID: | 200702161319.56700.peter_e@gmx.net |
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Lists: | pgsql-hackers pgsql-patches |
Am Freitag, 16. Februar 2007 08:02 schrieb Jeremy Drake:
> On Thu, 15 Feb 2007, Peter Eisentraut wrote:
> > I have no strong opinion about how matches are returned. Seeing the
> > definitional difficulties that you point out, it may be fine to return
> > them unordered. But then all "matches" functions should do that.
> >
> > For the "split" functions, however, providing the order is clearly
> > important.
>
> Does this version sufficiently address your concerns?
I don't think anyone asked for the start position and length in the result of
regexp_split(). The result should be an array of text. That is what Perl et
al. do.
As for the regexp_matches() function, it seems to me that it returns too much
information at once. What is the use case for getting all of prematch,
fullmatch, matches, and postmatch in one call?
--
Peter Eisentraut
http://developer.postgresql.org/~petere/
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