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xchtis's avatar
xchtis
Copper Contributor
May 10, 2023

Power Query inserts unwanted numbers

Hello everyone,

I tried searching on the net and couldn't find answers. When I create a table from a Powerquery it automatically adds numbers to column headings where they are identical (so if lots of columns are called 'production capacity' they will be named 'production capacity1', 'production capacity2', etc). This makes it impossible to summarise by pivot table. What causes this error?

 

Thanks, S.

  • Riny_van_Eekelen's avatar
    Riny_van_Eekelen
    Platinum Contributor

    xchtis That's not an error. It's by design. You simply can't have a structured table with duplicate column names.

    What exactly are you doing in PQ that causes the creation of duplicate column names?

     

     

    • xchtis's avatar
      xchtis
      Copper Contributor

      Riny_van_Eekelen  thanks for taking the time to reply. I'm doing an unpivot with columns that have identical column headers in the original data; I've tried manually deleting all but the first instance of the column name (planning to add them back with autofill down once unpivoted) but instead powerquery automatically adds new column names with numbers (so if I have 'capacity' followed by blanks it adds 'capacity1,' 'capacity2', etc). This is particularly confusing because it doesn't seem consistent--sometimes it leaves all the column name cells blank and lets me autofill them after they're unpivoted. I might try taking a screenshot later to show it.

      • Riny_van_Eekelen's avatar
        Riny_van_Eekelen
        Platinum Contributor

        xchtis After unpivoting you could extract the first 19 characters from the Attribute column to be left with just "production capacity" down the entire column.

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