"David E. Wheeler" <david@kineticode.com> writes:
> On Sep 1, 2010, at 11:09 AM, Pavel Stehule wrote:
>> Then you can eliminate NULLs with simple function
> Kind of defeats the purpose of the efficiency of the aggregate.
Well, you can build your own version of array_agg with the same
implementation, except you mark the transition function as strict ...
regards, tom lane