Difference between Sum() and Count() in performance

[Anonymous]

Hi

Anyone please explain me why sum() is multithreaded and Count() is singlethreaded.

Thanks

[Gysbert_Wassenaar]

That's not correct: A Myth About Count(distinct …)

[Anonymous]

i read it on cookbook .

[Gysbert_Wassenaar]

Then cookbook is wrong.

[Clever_Anjos]

There´s no big performance differences now, maybe ancient versions (8 or below) this could be representative