Re: remove undocumented assign syntax from plpgsql doc

On Sun, Jan 12, 2014 at 06:38:04AM +0100, Pavel Stehule wrote:
>
>
>
> 2014/1/12 Bruce Momjian <bruce@momjian.us>
>
>     On Sat, Jan 11, 2014 at 10:06:27PM +0100, Pavel Stehule wrote:
>     >
>     >
>     >
>     > 2014/1/11 Tom Lane <tgl@sss.pgh.pa.us>
>     >
>     >     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.
>     >
>     >
>     > GET DIAGNOSTICS is defined by standard - and there "=" should be allowed
>     only -
>     > although we allow ":=" too. It is a embedded SQL statement - although it
>     is
>     > implemented as plpgsql statement.
>
>     OK, docs updated for that.  I assume OPEN and FOR also can take := or =,
>     right?
>
>
> no, there are not used assign_operator
>
> It is used only in DECLARE DEFAULT, ASSIGN and GET DIAGNOSTICS
>  

OK, patch updated and attached.

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  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
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