@Override
  public String vectorExpressionParameters() {
    DecimalTypeInfo decimalTypeInfo = (DecimalTypeInfo) inputTypeInfos[0];
    final int scale = decimalTypeInfo.scale();
    HiveDecimalWritable writable = new HiveDecimalWritable();
    StringBuilder sb = new StringBuilder();
    sb.append(getColumnParamString(0, inputColumnNum[0]));
    sb.append(", values [");
    for (long value : inListValues) {
      writable.deserialize64(value, scale);
      sb.append(", decimal64Val ");
      sb.append(value);
      sb.append(", decimalVal ");
      sb.append(writable.toString());
    }
    sb.append("]");
    return sb.toString();
  }
Output a boolean value indicating if a column is IN a list of constants.
ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/Decimal64ColumnInList.java