> postgres=> select null union all select null;
> ?column?
> --------
>
>
> (2 rows)
>
> An additional problem is that the UNION parsing is done recursively, so
> the routine which does the type matching does not see a list of all the
> clauses all at once.
>
> Any ideas?
I knew there was a reason I did not support NULL in union. :-)
Just kidding. I never thought of testing it, and a good thing too. :-)
--
Bruce Momjian | 830 Blythe Avenue
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