protected final RelNode dispatchAlign(RelNode node, List<RelFieldCollation> collations) {
    if (node instanceof HiveJdbcConverter) {
      return node;
    }
    return alignDispatcher.invoke(node, collations);
  }
Execute the logic in this class. In particular, make a top-down traversal of the tree
and annotate and recreate appropriate operators.
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveRelColumnsAlignment.java