Re: How to loop through multi-dimentional array in PL/PGSQL

On 09/12/16 10:42, Raymond O'Donnell wrote:
> On 09/12/16 06:35, VENKTESH GUTTEDAR wrote:
>> Hello,
>>
>> Please help me in accessing multi-dimentional array in postgresql
>> PL/PGSQL.
>>
>> for i in array_lower(product_list, 1) .. array_upper(product_list, 1)
>> LOOP
>> product_list[i][0];
>> END LOOP;
>>
>> Is the above code right?
>>
>> Or is there any other way to access, i am getting null for
>> product_list[i][0];
>
> By default, PostgreSQL uses 1-based arrays (i.e. no [0] slot), so maybe
> that's your problem.

I just tried it myself: doing this -

select ('{a, b, c}'::text[])[0]

- gives me NULL.

Ray.

--
Raymond O'Donnell :: Galway :: Ireland
rod(at)iol(dot)ie