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

Find everything you need to get certified on Fabric—skills challenges, live sessions, exam prep, role guidance, and more. Get started

Not applicable

DAX throws out of memory on FILTER with "not equals"

Hello All,


I have a single column with 400K rows, which contain random numbers.

The following DAX formula calculates immediately, but the inverse (just negating the equals condition) results in an Out Of Memory Exception (after the calculation runs for several minutes). Can you reproduce it and how to solve it? Thanks.

test_filter_1 = COUNTROWS(
             table_1[column1] = EARLIER(rable_1[column1])

test_filter_1_negated =

                   NOT(table_1[column1] = EARLIER(rable_1[column1]))

Solution Sage
Solution Sage

I think the root of your problem is that you're using EARLIER to mean "previous row". That's what it sounds like it should do, but the name is deceptive. It really means something like, "in the previous context"


  • 12/09/2018
  • 3 minutes to read

Returns the current value of the specified column in an outer evaluation pass of the mentioned column.

EARLIER is useful for nested calculations where you want to use a certain value as an input and produce calculations based on that input. In Microsoft Excel, you can do such calculations only within the context of the current row; however, in DAX you can store the value of the input and then make calculation using data from the entire table.

EARLIER is mostly used in the context of calculated columns.


EARLIER(<column>, <number>)  

Did this post answer your question? Mark it as a solution so others can find it!

Help when you know. Ask when you don't!

Join the conversation at We Talk BI find out more about me at Slow BI

Helpful resources

July 2024 Power BI Update

Power BI Monthly Update - July 2024

Check out the July 2024 Power BI update to learn about new features.

July Newsletter

Fabric Community Update - July 2024

Find out what's new and trending in the Fabric Community.

Top Solution Authors