DSXchange

Thanks a lot for your help.
I'll ckeck and will tell you if my matter is resolved.

Kind regards.

There's nothing you can tune with Hash aggregation method. Sort will give better performance (measured as elapsed time) but does require sorted input. Use an explicit Sort stage and use as much memo ... Thanks for your answer. So i'll try this and tell you about... :wink: But as far as you are conc...

Hi everyone, First of all, thanks to all of you for this great forum/ :D Maybe you could help me concerning a "problem" i meet in one of my job. The fact is that i extract from an unsorted flat file around 200 millions rows, and i want to "group by" them with an aggregator stage ...