On Mon, 2004-12-06 at 22:19 -0300, Alvaro Herrera wrote: > AFAIK this is indeed the case with hashed aggregation, which uses the > sort_mem (work_mem) parameter to control its operation, but for which it > is not a hard limit.
Hmmm -- I knew we didn't implement disk-spilling for hashed aggregation, but I thought we had _some_ sane means to avoid consuming a lot of memory if we got the plan completely wrong. AFAICS you are right, and this is not the case :-( We definitely ought to fix this. -Neil ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html