Bruce Momjian wrote:
> --- 132,142 ----
> </para>
>
> <para>
> ! <application>PL/pgSQL</> functions can also be declared to return a
> ! group of values, either as a single row, or a group of rows, like a
> ! table. Such a function generates its output by executing
> ! <command>RETURN NEXT</> for each desired element of the result set,
> ! or by using <command>RETURN QUERY</> to output the result of
> evaluating a query.
> </para>
Hmm, ISTM the correct terminology is "set of rows". I have never heard
of "a group of rows". It seems to me the easiest way out of the problem
would have been substituting the commas in the original with parens:
<application>PL/pgSQL</> functions can also be declared to return
a <quote>set</> (or <quote>table</>) of any data type they can return a single
instance of.
The point of "any datatype they can return a single instance of" is that
this can be a set of scalar values (e.g. "RETURNS SETOF int") or of a
complex type ("RETURNS SETOF table"), or anything else they can return a
single instance of :-P (SETOF anyelement? SETOF table%TYPE?)
--
Alvaro Herrera http://www.PlanetPostgreSQL.org/
"World domination is proceeding according to plan" (Andrew Morton)
