[HACKERS] C trigger problem

I am trying to write a C trigger. Essentially TriggerData *in = (TriggerData *) fcinfo-context; HeapTupleHeader tuple=in-tg_trigtuple-t_data; Datum datum; datum = GetAttributeByName(tuple, unit_id, isnull); and that last line fails with ERROR: cache lookup failed for type

Re: [HACKERS] C trigger problem

Patrick Welche [EMAIL PROTECTED] writes: I am trying to write a C trigger. Essentially TriggerData *in = (TriggerData *) fcinfo-context; HeapTupleHeader tuple=in-tg_trigtuple-t_data; Datum datum; datum = GetAttributeByName(tuple, unit_id, isnull); and that last line