Re: BUG #4516: FOUND variable does not work after RETURN QUERY

Pavel Stehule wrote:
> I am sending patch, that adds FOUND and GET DIAGNOSTICS support for
> RETURN QUERY statement

Updated patch attached and applied. Thanks.

---------------------------------------------------------------------------

>
> Regards
> Pavel Stehule
>
>
>
> 2008/11/10 Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>:
> >>>>>> "Pavel" == "Pavel Stehule" <pavel(dot)stehule(at)gmail(dot)com> writes:
> >
> > >> Well, changing the semantics of an already-released statement
> > >> carries a risk of breaking existing apps that aren't expecting it
> > >> to change FOUND. So I'd want to see a pretty strong case why this
> > >> is important --- not just that it didn't meet someone's
> > >> didn't-read-the-manual expectation.
> >
> > Pavel> It's should do some problems, but I belive much less than
> > Pavel> change of casting or tsearch2 integration. And actually it's
> > Pavel> not ortogonal. Every not dynamic statement change FOUND
> > Pavel> variable.
> >
> > Regardless of what you think of FOUND, a more serious problem is this:
> >
> > postgres=# create function test(n integer) returns setof integer language plpgsql
> > as $f$
> > declare
> > rc bigint;
> > begin
> > return query (select i from generate_series(1,n) i);
> > get diagnostics rc = row_count;
> > raise notice 'rc = %',rc;
> > end;
> > $f$;
> > CREATE FUNCTION
> > postgres=# select test(3);
> > NOTICE: rc = 0
> > test
> > ------
> > 1
> > 2
> > 3
> > (3 rows)
> >
> > Since GET DIAGNOSTICS is documented as working for every SQL query
> > executed in the function, rather than for a specific list of
> > constructs, this is clearly a bug.
> >
> > --
> > Andrew (irc:RhodiumToad)
> >
> > --
> > Sent via pgsql-bugs mailing list (pgsql-bugs(at)postgresql(dot)org)
> > To make changes to your subscription:
> > http://www.postgresql.org/mailpref/pgsql-bugs
> >

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