protected final Iterator<N> initChildrenIterator() throws Exception {
      if (!allScope && scopeDFA.getFuzzyMatchTransitionSize(currentScopeState) == 0) {
        return getChildrenIterator(
            parent, scopeDFA.getPreciseMatchTransition(currentScopeState).keySet().iterator());
      } else {
        return getChildrenIterator(parent);
      }
    }
The method used for generating the result based on the matched node.
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/schema/tree/AbstractTreeVisitor.java