@Override
  public String vectorExpressionParameters() {
    return "col " + inputColumnNum[0] + ", divisor " + divisor;
  }
Set type of the output column and also set the flag which determines if cast to float
is needed while calculating PosMod expression
ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/PosModDoubleToDouble.java