On Thu, Oct 21, 2010 at 6:57 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Thanks. It also explains my another question why Merge Append cannot
>> be used for UNION ALL plans.
>
> Hmm, seems like the example you show ought to work. I wonder if there
> was an oversight in that patch...
>
Huh, that definitely worked in the earlier versions of the patch (as
much as it "worked" at all)
--
greg