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  1. ROOT
  2. ROOT-9754

[DF] Cannot define custom columns with same name in two different branches of the computation graph if both of them are jitted

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Fixed
    • master
    • 6.16/00
    • None
    • None
    • any

    Description

      Minimal reproducer:

      #include <ROOT/RDataFrame.hxx>
       
      int main()
      {
         ROOT::RDataFrame df(10);
         auto df2 = df.Define("x", "1.0");
         auto df3 = df.Define("x", "2");
         auto c = df2.Count();
         auto c2 = df3.Count();
         *c2;
       
         return 0;
      }
      

      Only affects master since in v6.14 it's not at all possible to define two custom columns with the same name.
      Thanks to Stefan Wunsch for reporting.

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            eguiraud Enrico Guiraud
            eguiraud Enrico Guiraud
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