Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

July 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more

Reply
mwhalen
Regular Visitor

Power Query Aggregate not loading

I am attempting to aggregate a merged query but the preview has been "loading" for 10 minutes now (expanding the table only takes 15 seconds) When I try to apply without seeing the preview, it gets stuck after loading about 1/3 of the rows. Is there something I am doing wrong?

1 REPLY 1
Anonymous
Not applicable

Hi @mwhalen ,

 

You may try to disable "background refresh".1.png

 

If you don't want to refresh or load for specific reports in power bi desktop, you can disable the following options.

2.png

 

Also you can try Table.Buffer to performance.

 

About more details, please kindly refer to

Speed/Performance aspects – The BIccountant

Table.Buffer for cashing intermediate query results or how workaround Unnecessary Queries Issue (mic...                                                                            

                                                                             

Best Regards,

Stephen Tao

 

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

 

Helpful resources

Announcements
FabCon and SQLCon Barcelona 2026

FabCon & SQLCon – Barcelona 2026

Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.

60 days of Data Days Carousel

Data Days 2026

Join Fabric Data Days 2026: 60 days of free live/on-demand sessions, challenges, study groups, and certification opportunities.

Power BI DataViz World Championships carousel

Power BI DataViz World Championships - June 2026

A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.