Matthias van de Meent <boekewurm+postgres@gmail.com> writes:
> ... with that patch we actually don't need the attcacheoff in the
> pg_atttribute struct: it only needs to be present in the derived
> "TupleAttrAlignData" structs which carry the
> length/alignment/storage/byval info.
Yeah, I was wondering about that too: keeping attcacheoff as local
state in slots might get us all its win without so much conceptual
dirtiness.
regards, tom lane