Hello
It is RETURN TABLE(SQL) via ANSI SQL 2003
Table function support is in patch queue:
http://archives.postgresql.org/pgsql-patches/2007-02/msg00216.php
http://momjian.us/mhonarc/patches/msg00001.html
Regards
Pavel Stehule
>In a PL/PgSQL set-returning function, returning the result set of a
>query requires a FOR loop and repeated invocations of the RETURN NEXT
>statement:
>
> FOR x in SELECT ... LOOP
> RETURN NEXT x;
> END LOOP;
>
>This works, but it seems overly verbose. It occurred to me that we could
>easily add a new PL/PgSQL statement that evaluates a set-returning
>expression and adds *all* the resulting rows to the function's result
>set. For example:
>
> RETURN QUERY SELECT ...;
>
>I'm not sure of the right name: "RETURN ROWS" or "RETURN ALL" might also
>work. Of course, this is syntax sugar (and superficial sugar at that),
>but I believe this is a fairly common requirement.
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