Hannu Krosing <hannu@tm.ee> writes:
> Relying on hash aggregation will become essential if we are ever going
> to implement the "other" groupings (CUBE, ROLLUP, (), ...), so it would
> be nice if hash aggregation could also overflow to disk
I did not make this happen, but it sounds like Joe and Natassa are
about to send their students out to do it ... in a month or so, we
can review the homework assignments and decide who gets an A ;-)
regards, tom lane