Forum Discussion
Rewrite Filter function with better option (Optimize Dax Measure)
I can solve it using lastnonblank function, everything works fine now
Try this:
var __maxMonthId = MAX( Work[month_id] )
var __result =
CALCULATE(
SUM( Work[pct_assignment_monthly] ),
KEEPFILTERS( 'Calendar'[month_id] = __maxMonthId ),
KEEPFILTERS(
TREATAS(
{1002, -1, 1001},
Project[project_category]
)
)
)
return
__result
Best
D
Thanks for the answer and sorry for my late response, I'd change the measure as you advise, but the time still increasing every time I add a new dimension, so I traced both measures, and there are the results:
This is the Trace using your proposed measure (use more FE than SE):
This is the trace using the first version of the measure (a little bit better un FE usage, but make 1 SE Query compared with the newest version of the measure)
So, another idea to replace the measure?
As an important finding, the filter that makes it slower is when evaluate Max(Month_id)
- Wait... What is the query that you measure? If you are pulling out of the model a lot of detail rows, then no wonder this is slow. I'd be surprised if you pulled out a fairly small amount rows from your dimensions and got such results as above. I smell something fishy in the query because my measure does not use fancy math, only filtering and therefore SE should prevail. In the measure there's not even a single IF that would call for a CALLBACK.
Please show us the query and tell us how many rows you pull out.
Best
DThese are the queries that I measured:
With your measure:
DEFINE
---- MODEL MEASURES BEGIN ----
MEASURE Work[Load] =
var maxMonthId = MAX( Work[month_id] )
var result =
CALCULATE(
SUM( Work[pct_assigment_monthly] ),
KEEPFILTERS( 'Calendar'[month_id] = maxMonthId ),
KEEPFILTERS(
TREATAS(
{1002, -1, 1001},
Project[project_category]
)
)
)
return
result
---- MODEL MEASURES END ----VAR __DS0FilterTable =
TREATAS({2020}, 'Calendar'[Year])EVALUATE
SUMMARIZECOLUMNS(
ROLLUPADDISSUBTOTAL(
ROLLUPGROUP(
'Calendar'[month_description],
'Calendar'[month_id],
'Regions'[region_desc],
'Machine Sector'[sector_desc],
'Customer'[customer_desc]
), "IsGrandTotalRowTotal"
),
__DS0FilterTable,
"Load", 'Work'[Load]
)------------------------------------------------------------------------------------------------
With the first version of the measure (I only changed maxMonthId in order to use as a variable):
DEFINE
---- MODEL MEASURES BEGIN ----
MEASURE Work[Load] =
VAR maxMonthid =
MAX ( 'Work'[month_id] )
VAR result =
CALCULATE (
SUM ( Work[pct_assigment_monthly] ),
FILTER ( 'Calendar', maxMonthid = 'Calendar'[month_id] ),
FILTER (
Project,
Project[project_category] = 1001
|| Project[project_category] = 1002
|| Project[project_category] = -1
),
CROSSFILTER ( 'Leave Reason'[leave_reason_id], Work[leave_reason], NONE )
)
RETURN
result---- MODEL MEASURES END ----
VAR __DS0FilterTable =
TREATAS ( { 2020 }, 'Calendar'[Year] )
EVALUATE
SUMMARIZECOLUMNS (
ROLLUPADDISSUBTOTAL (
ROLLUPGROUP (
'Calendar'[month_description],
'Calendar'[month_id],
'Regions'[region_desc],
'Machine Sector'[sector_desc],
'Customer'[customer_desc]
),
"IsGrandTotalRowTotal"
),
__DS0FilterTable,
"Load", 'Work'[Load]
)