2008/9/9 Jeff Davis <[EMAIL PROTECTED]>:
> On Tue, 2008-09-09 at 18:51 +0200, Pavel Stehule wrote:
>> hmm. I solve similar problem in grouping sets :( etc
>>

I have special executor node - feeder, it hold one tuple and others
nodes read from this node. It's usable for hash aggregates.

Pavel

plan is like:

grouping sets
--> seq scan ...
--> hash aggg
    --> feeder
--> hash agg
   --> feeder



>
> How did you solve it?
>
> Regards,
>        Jeff Davis
>
>

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