Re: [HACKERS] questionable code in heap_formtuple()] - Mailing list pgsql-hackers

> > around line 812 in access/common/heaptuple.c:
> >
> >     len = sizeof *tuple - sizeof tuple->t_bits;
> >
> > This seems questionable for me.


> > I think more acculate way to calculate the offset is:
> >
> >     len = (char *)&tuple->t_bits[0] - (char *)tuple;

OK, now I am more confused.  Doesn't this work:

    len = sizeof(HeapTupleData) - offsetof(HeapTupleData.t_bits);

while your solution is finding the size of the area before t_bits?

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