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Removing unused columns from the pipline

  • March 2, 2009 at 2:53 pm

    #155357

    I have generated derived columns as new columns and I don't need the original columns anymore.

    I am going through a bunch of lookups, lookup error flows, derived columns, unions and I don't need to be bringing all these extra columns with. Is there a way to get rid of them?

  • March 3, 2009 at 8:37 am

    #952450

    To improve performance of a data flow it is recommended not to carry extra columns through the data flow, but I don't know how to remove these, is there a step that allows you to specify output columns so the extra columns can be removed?

    Any thoughts on this???

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