public void addInsertTabletNode(InsertTabletNode node, Integer parentIndex) {
    insertTabletNodeList.add(node);
    parentInsertTabletNodeIndexList.add(parentIndex);
  }
record the result of insert tablets
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/planner/plan/node/write/InsertMultiTabletsNode.java