| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Chapman Flack <chap(at)anastigmatix(dot)net> |
| Cc: | Gilles Darold <gilles(at)darold(dot)net>, er(at)xs4all(dot)nl, pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: [PATCH] proposal for regexp_count, regexp_instr, regexp_substr and regexp_replace |
| Date: | 2021-03-21 14:53:17 |
| Message-ID: | 345476.1616338397@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Chapman Flack <chap(at)anastigmatix(dot)net> writes:
> If this turns out to be a case of "attached the wrong patch, here's
> the one that does implement foo_regex functions!" then I reserve an
> objection to that. :)
+1 to that. Just to add a note, I do have some ideas about extending
our regex parser so that it could duplicate the XQuery syntax --- none
of the points we mention in 9.7.3.8 seem insurmountable. I'm not
planning to work on that in the near future, mind you, but I definitely
think that we don't want to paint ourselves into a corner where we've
already implemented the XQuery regex functions with the wrong behavior.
regards, tom lane
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