On Sat, 2020-07-18 at 21:15 -0400, Tom Lane wrote: > Jeff Davis <pg...@j-davis.com> writes: > > What is your opinion about pessimizing the HashAgg disk costs (not > > affecting HashAgg plans expected to stay in memory)? Tomas Vondra > > presented some evidence that Sort had some better IO patterns in > > some > > cases that weren't easily reflected in a principled way in the cost > > model. > > Hm, was that in some other thread? I didn't find any such info > in a quick look through this one.
https://www.postgresql.org/message-id/2df2e0728d48f498b9d6954b5f9080a34535c385.camel%40j-davis.com Regards, Jeff Davis
