Re: remove undocumented assign syntax from plpgsql doc

On Sat, Jan 11, 2014 at 02:12:49PM -0500, Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > Oh, I think you are right.  I have reverted the patch.  Attached is
> > proposed documentation for '='.
>
> Meh.  Variable initialization is only one of multiple cases (assignment,
> GET DIAGNOSTICS; maybe others, I've not examined the grammar).  Also,
> if we do it like this, we're implying that both := and = are equally
> preferred, which might not be the impression we want to leave.
>
> I'd be a bit inclined to just stick a NOTE somewhere saying that "="
> can be used in place of ":=" for assignment.

OK, here is an updated doc patch that does that.  The next question is
whether we want examples using '=' instead of ':='?  Right now we have
them, and Pavel's patch removed them.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + Everyone has their own god. +