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.
Comments?
-Neil
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