Re: Fix NULL pointer reference in _outPathTarget()

Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com> writes:
> On 18.04.22 20:53, Tom Lane wrote:
>> A semantics-preserving conversion would have looked something like
>> if (node->sortgrouprefs)
>> WRITE_INDEX_ARRAY(sortgrouprefs, list_length(node->exprs));

> I think we could put the if (node->fldname) inside the WRITE_INDEX_ARRAY
> macro.

Yeah, that's another way to do it. I think though that the unresolved
question is whether or not we want the field name to appear in the output
when the field is null. I believe that I intentionally made it not appear
originally, so that that case could readily be distinguished. You could
argue that that would complicate life greatly for a _readPathTarget()
function, which is true, but I don't foresee that we'll need one.

regards, tom lane