Re: Arrays in pl/pgsql functions

Donald Fraser wrote:
> Could someone be please inform me what the correct syntax for accessing arrays
> is or tell me if its not possible with pl/pgSQL functions.
>

It won't work in 7.3.x or before, as you've noted. In 7.4 this will work:

CREATE OR REPLACE FUNCTION test_arrays() RETURNS int4[] AS '
DECLARE
      test int4[] := ''{}'';
BEGIN
     test[1] := 1;
     RETURN test;
END ' LANGUAGE 'plpgsql';

regression=# select test_arrays();
  test_arrays
-------------
  {1}
(1 row)

Note that you have to initialize "test" to an empty array, because
otherwise you are trying to add an element to a NULL::int4[], the result
of which is still NULL.

Joe