Joe Conway <[EMAIL PROTECTED]> writes:
>> +    Oid                     element_type = 
>> planstate->ps_ResultTupleSlot->tts_tupleDescriptor->attrs[0]->atttypid;

Hmm, that makes me itch ... it seems like unwarranted familiarity with
the innards of the subplan; not only as to where it keeps things, but
when things have been initialized.  Perhaps we have no choice, but isn't
the datatype available on the current plan level?

                        regards, tom lane

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