Sergey Konoplev <gray.ru@gmail.com> writes:
> Just specify 'g' as the flags parameter (the 4th one). It means 'globally'.
> SELECT regexp_replace('xaxx', 'x', 'e', 'g');
> There are more of this flags described here:
> http://www.postgresql.org/docs/8.4/interactive/functions-matching.html#POSIX-EMBEDDED-OPTIONS-TABLE
> p.s. The question is for hackers - BTW I did not find 'g' in this
> table, is it a docs bug?
No. That table is referenced for numerous cases where 'g' is not an
allowed flag. Instead, 'g' is documented in-line in the description
of regexp_replace.
regards, tom lane