All the regexp functions blow up with "invalid memory alloc request" errors when the input string exceeds 256MB in length. This restriction does not seem to be documented anywhere that I could see.
(Also for regexp_split* and regexp_matches, there's a limit of 64M total matches, which also doesn't seem to be documented anywhere). Should these limits: a) be removed b) be documented c) have better error messages? -- Andrew (irc:RhodiumToad)
