Re: Declaring multidimensional arrays in pl/pgsql

On Thu, 29 Nov 2007 18:11:22 +0400, Rodrigo De León <rdeleonp(at)gmail(dot)com>
wrote:

> On Nov 29, 2007 3:34 AM, Max Zorloff <zorloff(at)gmail(dot)com> wrote:
>> According to the docs it seems that only way would be to declare it as
>> something like :
>> myArray := ARRAY[[1,2], [3,4], [5,6]];
>
> You can declare arbitrary-sized, n-dimensional arrays:
> ...
> DECLARE
> myArray integer[][]; -- two-dimensional integer array
> BEGIN
> ...
> END;
> ...
>
> See:
> http://www.postgresql.org/docs/8.1/static/arrays.html

I can. But unfortunately :

create or replace function testfunc()
returns setof record as $$
DECLARE
myArray int[][];
BEGIN
FOR i IN 1..10 LOOP
FOR j IN 1..10 LOOP
RAISE NOTICE '% %', i, j;
myArray[i][j] := 1;

END LOOP;
END LOOP;

RETURN;
END
$$ language plpgsql;

ponline=# select testfunc();
NOTICE: 1 1
NOTICE: 1 2
ERROR: invalid array subscripts
КОНТЕКСТ: PL/pgSQL function "testfunc" line 7 at assignment

2-dimensional arrays do not grow like 1-dimensional do (it says so in the
docs).
The initial array is 1x1 size. I suppose I'm stuck with emulating 2-dim
arrays through
1-dim arrays because I also need them to grow later.