> anymore. For example, I learned this the hard way yesterday as one of
> my
> queries that had COALESCE(somecolumn, 0) stopped working because I did
> not GROUP BY somecolumn. It did work properly before simply because
> this
> column was NULL in all databases (it was reserved for future usage).

Milan,
Can you explain this a litle more please?
Can you show us a query which worked n 2.0 and now does not in 2.1?
thanks
Alan