Re: Error message with plpgsql CONTINUE

On 8/17/15 9:48 AM, Tom Lane wrote:
> I'm inclined to think that if we wanted to make this better, the way to
> improve it would be to detect the error*at compile time*, and get rid of
> this hack in plpgsql_exec_function altogether. pl_gram.y already
> successfully detects cases where CONTINUE mentions a label that doesn't
> exist or isn't surrounding the CONTINUE. What it is missing is that we
> don't distinguish labels on loops from labels on non-loop statements, and
> thus it can't tell if CONTINUE is referencing a non-loop label or has no
> label but is not inside any loop-type statement. Seems like that detail
> could be added to the PLpgSQL_nsitem data structure without a huge amount
> of work.

So split PLPGSQL_NSTYPE_LABEL into PLPGSQL_NSTYPE_BLOCK_LABEL and
PLPGSQL_NSTYPE_LOOP_LABEL, and split opt_block_label and opt_label the
same way?
--
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Data in Trouble? Get it in Treble! http://BlueTreble.com