Joe Conway <mail@joeconway.com> writes:
> Tom Lane wrote:
>> Agreed. The Berkeley code (or more accurately, the descendant code
>> that's in our source tree) generates the cross product of the rows
>> output by the SRFs, but I've never understood why that should be a good
>> approach to take. I could live with just rejecting multiple SRFs in the
>> same targetlist --- at least till someone comes up with a convincing
>> semantics for such a thing.
> I would like to start spending some time digging in to this. Any pointers or
> thoughts on the best way to implement it? A little direction might save me
> days of wheel spinning :-).
Implement what exactly?
The code that presently does the dirty work is in ExecTargetList(), if
that's what you're looking for...
regards, tom lane