On 27 March 2013 06:47, Robert Haas <robertmh...@gmail.com> wrote:
> On Tue, Mar 26, 2013 at 9:02 AM, Brendan Jurd <dire...@gmail.com> wrote:
>> We can't sensibly test for whether an array is empty. I'd call that a
>> functional problem.
>
> Sure you can. Equality comparisons work just fine.
>
> rhaas=# select '{}'::int4[] = '{}'::int4[];
The good news is, if anybody out there is using that idiom to test for
emptiness, they will not be disrupted by the change.
Cheers,
BJ
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