david@fetter.org (David Fetter) writes:
> While PL/Perl is great, it's not available everywhere, and I'd like to
> be able to grab atoms from a regex match in, say, a SELECT. Is there
> some way to get access to them?
There's a three-parameter variant of substring() that allows extraction
of a portion of a regex match --- unfortunately it uses SQL99's
brain-dead notion of regex, which will not satisfy any Perl weenie :-(
I think it'd be worth our while to define some comparable functionality
that depends only on the POSIX regex engine ...
regards, tom lane