Re: [PATCHES] [BUGS] casting strings to multidimensional arrays yields

Tom Lane wrote:
> Joe Conway <mail@joeconway.com> writes:
>>select '{{},{}}'::text[];
>>ERROR:  malformed array literal: "{{},{}}"
> 
> Hm.   This seems like it would be a legitimate representation of a 2x0
> array.  Why would you allow '{}' and reject this?

I just reread your comment and thought about it more. I think most of 
what I said in the last post holds, but in addition part of the problem 
lies in the fact that we don't implement multidimensional arrays as 
nested arrays, but rather as one monolithic structure. If we did the 
former, then 2x0 would be feasible.

Investigating, and possibly implementing, multidimensional arrays as a 
nested structure is another item on my wish list. I'm still not entirely 
sure how difficult or desirable it is, but my interpretation of SQL99 is 
that nested arrays is the requirement.

Joe