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Mikelsoft's avatar
Mikelsoft
New Member
2 years ago

Table.Combine with Postgre (PowerQueryM) - Results in Error

Hi,

since the first days in October my "power query m" query doesn't work any more.

 

What I figured out until now:

- I do 2 queries with postgre in the PowerQuery Editor

 

When I try to combine them Table.Combine({xx,xx}) it never completes.

- latest Version Oktober 2023

- Win 11

- problem since 05.10.2023

 

Has anyone the same problem?

 

Thanks for your support

Mike

 

5 Replies

  • 123abc's avatar
    123abc
    Community Champion
    1. Check for Power BI Updates: First, ensure that you have the latest updates for Power BI Desktop. Sometimes, issues like this can be resolved with a software update that addresses known bugs or compatibility issues.

    2. Review Your Queries: Examine both Postgre queries separately and ensure they are working correctly. If there are any issues with individual queries, they may prevent successful combination.

    3. Connection Issues: Confirm that your connection to the Postgre database is stable and not experiencing any connection errors. Sometimes, connectivity issues can cause queries to fail.

    4. Data Volume: Large datasets can lead to performance issues when combining tables. If your tables are very large, it might be a factor.

    5. Refresh Settings: Check the refresh settings in Power BI Desktop. Ensure that you are not encountering any issues with data refresh, such as timeouts or errors.

    6. Resource Limitations: Check your system's resource usage during the query combination. If your system resources (CPU, RAM) are being heavily used, it could cause slow or incomplete queries.

    7. Error Messages: Look for specific error messages in Power Query or Power BI Desktop. These messages can often provide clues about what's going wrong. You can check the Query Dependencies and Errors pane in Power Query.

    8. Logs and Diagnostics: Use the Power Query diagnostic tools to gather more information about the issue. You can enable diagnostic tracing to capture additional details about what's happening during query execution.

    9. Isolation: If the issue persists, try combining simpler tables or queries to isolate the problem. This can help you identify if the issue is related to the specific tables or queries you are trying to combine.

    10. Community Support: Check the Power BI community forums or the official Microsoft support resources. Others may have encountered a similar issue, and there might be solutions or workarounds available.

    If the issue continues, it's a good idea to reach out to Microsoft support for specific assistance, especially if this appears to be a bug in the software. They may be able to provide more targeted guidance or fixes for the problem. Remember to provide as much detail as possible about your setup and the issue you're encountering when seeking support.

     

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

     

    In case there is still a problem, please feel free and explain your issue in detail, It will be my pleasure to assist you in any way I can.

     

    • Mikelsoft's avatar
      Mikelsoft
      New Member

      Hi,

       

      thanks. 
      the query worked before october. 
      the single queriea are working fine. Only when i combine them, it doesn't work any more. 
      i redid the queries with very simple ones - it doen't work either. 

      does anybody else having issues with that. 

      thanks

      • Anonymous's avatar
        Anonymous
        Not applicable

        Hi Mikelsoft ,

        1.  Since you’re doing 2 queries with PostgreSQL in the PowerQuery Editor, make sure that both queries are returning the expected results before trying to combine them.


        2. Try to set the query opinion with ignore the privacy levels and potentially improve performance.
        If this does not work, you may change the database privacy level to Public or None.
        Understand Power BI Desktop privacy levels - Power BI | Microsoft Learn

        I hope this helps! If you have any other questions, feel free to ask.

        Best Regards,
        Gao

        Community Support Team

         

        If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly.
        If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

        How to get your questions answered quickly --  How to provide sample data in the Power BI Forum

  • Hi,

     

    yes the problem is there, even if its only a simple request wirh postgres. 

    all the queries before are working fine. Only combining does not work. 

    where can I submit the bug to Microsoft? The support center had no address for me!

     

    thanks

    mike