Tom Lane wrote:
>
> Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp> writes:
> > I used the following macro in my trial implementation.
> > #define COLUMN_IS_DROPPED(attribute) ((attribute)->attnum <=
> > DROP_COLUMN_OFFSET)
> > The places where the macro was put are exactly the places
> > where attisdropped must be checked.
>
> Actually, your trial required column dropped-ness to be checked in
> many more places than the proposed approach does.
Have you ever really checked my trial implementation ?
regards,
Hiroshi Inoue
http://w2422.nsk.ne.jp/~inoue/