Daniel CAUNE <d.caune@xxxxxxx> writes: > Actually it seems, from the source code, that a null slot->tts_tuple > won't lead to a segmentation fault in function slot_attisnull, while > slot and slot->tts_tupleDescriptor will. I'll bet on D'Arcy's theory that slot is being passed in as NULL. Exactly why remains to be seen ... we need that stack trace! regards, tom lane