Tom Lane wrote:
>
> Perhaps we could do something with a hybrid technique: don't materialize
> the cursor output unless user actually asks for backwards scan.
Or we can check the existence of SCROLL keyword which is
currently ignored. In the first place SQL standard only
allows NEXT fetch unless SCROLL is specified.
regards,
Hiroshi Inouehttp://w2422.nsk.ne.jp/~inoue/