Vadim Mikheev wrote:
> >
> > example:
> > select upper(usename), count(usename) from pg_shadow group by 1;
> > OK
> > select upper(usename), count(oid) from pg_shadow group by 1;
> > CRASH
> >
> > It did work in 6.3.
>
> As I remember, someone re-implemented GroupBy node in 6.4...
You may be referring to me. I made some changes to the SortGroupBy parse
node to allow espressions. I didn't touch the GroupClause node. Also,
I think this bug arrived before I made my changes in 6.4
