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

Enhance your career with this limited time 50% discount on Fabric and Power BI exams. Ends August 31st. Request your voucher.

Reply
SivaMani
Resident Rockstar
Resident Rockstar

Merge Query Error: Unable to merge BigQuery tables

I'm trying to merge two tables based on three column. I'm receiving an error like Something went wrong.

 

 

3 REPLIES 3
Bamak
Helper V
Helper V

Hi Siva Mani

 

Problem is know by microsoft but they don't want to fix  ;>)

Don't hezitate to communicate 

 

It's a nightmare for my company 

 

https://community.powerbi.com/t5/Desktop/Query-M-Merge-2-Big-Query-tables-Lef-join-issue/td-p/143548...

Anonymous
Not applicable

@SivaMani can you please share the error and the headers of the 2 tables.

@Anonymous,

 

Thanks for the reply. I found a temporary solution.

 

But, I'm getting this error when I use fields from the merged table,

 

Error Message:
OLE DB or ODBC error: [DataSource.Error] ODBC: ERROR [42000] [Microsoft][BigQuery] (70) Invalid query: LEFT OUTER JOIN cannot be used without a condition that is an equality of fields from both sides of the join..

 

Helpful resources

Announcements
July 2025 community update carousel

Fabric Community Update - July 2025

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

July PBI25 Carousel

Power BI Monthly Update - July 2025

Check out the July 2025 Power BI update to learn about new features.