Vik Fearing <v...@postgresfriends.org> writes: > I don't suppose project policy would allow us to use an external > library. I assume there is one out there that implements XQuery regular > expressions.
Probably, but is it in C and does it have a compatible license? The bigger picture here is that our track record with use of external libraries is just terrible: we've outlived the original maintainers' interest multiple times. (That's how we got to the current situation with the regex code, for example.) So I'd want to see a pretty darn vibrant-looking upstream community for any new dependency we adopt. regards, tom lane