Bruce Momjian <bruce@momjian.us> writes:
> I don't think the changes made in PG 12 are documented accurately.
That code is swapped out of my head at the moment, but it looks
to me like the para before the one you changed is where we discuss
the behavior for whitespace. I'm not sure that this change is
right, or an improvement, in the context of both paras.
regards, tom lane
