private void fixupOtherParent(
      Operator<? extends OperatorDesc> childMultipleParent,
      Operator<? extends OperatorDesc> child,
      Operator<? extends OperatorDesc> vectorChild) {

    List<Operator<? extends OperatorDesc>> children = childMultipleParent.getChildOperators();
    final int childrenCount = children.size();
    for (int i = 0; i < childrenCount; i++) {
      Operator<? extends OperatorDesc> myChild = children.get(i);
      if (myChild == child) {
        children.set(i, vectorChild);
      }
    }
  }
Decimal types can be specified with different precision and scales e.g. decimal(10,5),
as opposed to other data types which can be represented by constant strings.
The regex matches only the {@link serdeConstants#DECIMAL_TYPE_NAME} prefix of the type.
ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/Vectorizer.java