* Markus Schiltknecht:

> Florian Weimer wrote:
>> I think you need it because there are potentially many input types.

Eh, "tapes".

> Given the partitioning case, I'd expect all rows to have an equal
> tuple descriptor. Maybe this is a matter of what to optimize, then?
>
> Could you elaborate on what use case you have in mind?

You need a priority queue to figure out from which tape (partition)
you need to remove the next tuple.

--
Florian Weimer <fweimer@bfk.de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99

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