Framed Sum in Rank & Window Magic ETL not treating zeroes properly

MikeLines
MikeLines
in Magic ETL

Hi there,

I'm trying to produce a rolling 12 month total for each month in a dataset, but I'm finding with some of the partitions that I get a negative exponential when I'm expecting it to return zero (all the months are zero - see raw data screenshot). It doesn't seem to happen with every partition that has zero values, so I'm not sure what's going wrong. Has anyone had this issue before?

Thanks, Mike

processed-data.png
rank-window-config.png
raw-data.png
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Best Answer

  • TheLookout
    TheLookout Contributor
    Answer ✓

    Using your screen shots I built a webform and tested this out and I got the same results. I added in an "Alter Columns" tile and CAST the "Total Revenue" column to be a Fixed Decimal and after that the Rank & Window returned 0.0 on the rows I expected to be 0.

    I can't remember exactly why this happens but it is something to do with binary and scientific notation not playing well together.

    image.png


Answers

  • TheLookout
    TheLookout Contributor
    Answer ✓

    Using your screen shots I built a webform and tested this out and I got the same results. I added in an "Alter Columns" tile and CAST the "Total Revenue" column to be a Fixed Decimal and after that the Rank & Window returned 0.0 on the rows I expected to be 0.

    I can't remember exactly why this happens but it is something to do with binary and scientific notation not playing well together.

    image.png


  • MikeLines
    MikeLines

    @TheLookout Tried it out and it worked perfectly! Thanks so much for your help :)

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