Re: Assigning values to array components.

Rich Cullingford <rculling@sysd.com> writes:
> create or replace function foobaz()
> RETURNS bigint[]
> AS '
> DECLARE
>      answer bigint[];
> BEGIN
>    answer[1] := 12345;
>    RETURN answer;
> END;
> '
> LANGUAGE 'plpgsql';

> select foobaz();
> WARNING:  plpgsql: ERROR during compile of foobaz near line 4
> ERROR:  parse error at or near "["

IIRC, Joe Conway fixed that for 7.4.  I can get your example to work
in CVS tip if I modify the DECLARE to
answer bigint[] = ''{}'';

Without that, you're trying to combine a NULL array with a nonnull
entry, which is going to give a NULL result.
        regards, tom lane