Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
7 years ago

how to expose converted MySQL query

I have a Power BI report that connects to a cloud source via an ODBC driver.  The cloud source's DB is MySQL.  I have a fairly long and complicated list of steps that are applied in my query (e.g., query 2+ tables, merge, etc).  Is there a way to expose the equivalent MySQL query that M generates?

3 Replies

  • Anonymous's avatar
    Anonymous
    Not applicable

    I just discovered that there is a View Native Query feature when you right-click on certain steps in the query.  In particular, so far, I see that there are are queries for Navigation and Removed Other Columns steps.  I was expecting to see a query only for the Navigation step.  Does this imply that Power BI reads the data multiple times?

    • v-frfei-msft's avatar
      v-frfei-msft
      Community Support

      Hi Anonymous,

       

      You can find the M code in the power query, please refer to the picture as below.

       

       

      Regards,

      Frank

      • Anonymous's avatar
        Anonymous
        Not applicable

        Hi v-frfei-msft,

         

        I know I can expose the M query.  My problem is that I need the M query converted to the query language of the source (in this case, MySQL).  I now know that I can view the source query with the 'View Native Query' feature (right-click on a step in the query editor).  However, I don't understand why I can see 'View Native Query' for 2+ steps.  I was expecting to see only 1 native query.  For example, I expect to see a native query for the default Navigation step, but I wasn't expecting to see a native query for a 'Removed Other Columns' step.  Does this imply that 2+ queries are issued to the source?  Or, does Power BI convert the 2+ queries into 1 query and issue that 1 query to the source?