Masterprojekt Naumann1 <mpws2013n1@gmail.com> writes:
> Nevertheless, slot->tts_nvalid is always 0. I hope that there is no other
> problem.
You should not be touching the tts_values/tts_isnull arrays without having
first called slot_getsomeattrs or slot_getallattrs.
See comments in src/include/executor/tuptable.h for some documentation.
regards, tom lane