Re: [HACKERS] Another reason to redesign querytree representation

Bruce Momjian <maillist@candle.pha.pa.us> writes:
> Removed:
> * Be smarter about promoting types when UNION merges different data types
> * SELECT ... UNION ... GROUP BY fails if column types disagree
> * INSERT ... SELECT ... UNION is not reliable

> And added:

> * redesign INSERT ... SELECT to have two levels of target list

Er ... wait.  The first two of those TODO items were separate issues.
I think they can be fixed without changing the querytree representation.
The third can be superseded by this item, though.
        regards, tom lane