group by very slow loading

[Anonymous]

Hi, 

I have a calender table with multiplier which represent working day or not. then I try to calculate total working day per month by country. I group by with the following columns. But it took me very long just to see the final table. Is it because of my query or because of my low Ram? My laptop is currently 8Gb and will change to 16 gb soon. Currently I am facing very long loading time and it really waste my time. Any suggestion on this please? 

Thanks in advanced and appreciated. 

[v-kkf-msft · Accepted solution]

Hi @Anonymous ,

I would prefer that your previous steps or other query slowed down the loading speed. Please refer to this document to improve performance of your M-queries.

Speed/Performance aspects 

Best Regards,
Winniz
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Anonymous]

Hi Winniz,

Thank you for the suggestion. I will refer to that document to change necessary. 

Best Regards,

Yan Min