"Pavel Stehule" <pavel.stehule@gmail.com> writes:
> I found small bug
> regexp_split_to_array('123456','1');
> regexp_split_to_array('123456','6');
> regexp_split_to_array('123456','.');
> these parameters hangs backend.
This code's got more problems than that :-(
The one that's bothering me right now is that regexp_match() and
regexp_split() cache a compiled regex on first entry to the function,
and then blithely assume it will still be there on repeated calls.
I think probably the best thing to do is do all the matching on the
first call, and have the saved state include an array of character
positions of matches; then repeat calls to the SRF just iterate through
the array.
It seems a bit short of comments too. Working on it now.
regards, tom lane
