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

We've captured the moments from FabCon & SQLCon that everyone is talking about, and we are bringing them to the community, live and on-demand. Starts on April 14th. Register now

Reply
mumbaicharaja
Regular Visitor

custom function changes datatype during run time

In power query I got a custom function which picks up the data, does left join and returns the records properly. The tables are linked using t1.c1 and t2.c2. the data type of both columns is Text. It is tested using sample data file used for the function. When that custom function is called from some else place (i read all files from a folder and call the function for each of the file)...the function works correctly except for the data with last digit as zero. e.g. "01.10", "01.20" in this last value is zero wherein for t1 the value is automatically converted as "01.1" and in T2 the value is retained as "01.01". Bu then records doesn't get linked as the data alues are different. Please note, in both the tables field's data type is text, but it seems still it trims out zero from t1.c1 but not t2.c2. Also within custom function it seems to be working fine, but when caller makes the call to the function it doesn't return matching records. Any idea what could be the issue?

1 REPLY 1
edhans
Community Champion
Community Champion

Virtually impossible to tell without some data and the code for your function.

 

How to get good help fast. Help us help you.
How to Get Your Question Answered Quickly
How to provide sample data in the Power BI Forum



Did I answer your question? Mark my post as a solution!
Did my answers help arrive at a solution? Give it a kudos by clicking the Thumbs Up!

DAX is for Analysis. Power Query is for Data Modeling


Proud to be a Super User!

MCSA: BI Reporting

Helpful resources

Announcements
New to Fabric survey Carousel

New to Fabric Survey

If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.

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.

Join our Fabric User Panel

Join our Fabric User Panel

Share feedback directly with Fabric product managers, participate in targeted research studies and influence the Fabric roadmap.

March Power BI Update Carousel

Power BI Community Update - March 2026

Check out the March 2026 Power BI update to learn about new features.