@Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj == null || getClass() != obj.getClass()) {
      return false;
    }
    CreateLogicalViewNode that = (CreateLogicalViewNode) obj;
    return (this.getPlanNodeId().equals(that.getPlanNodeId())
        && Objects.equals(this.viewPathToSourceMap, that.viewPathToSourceMap));
  }
This variable will be set in function splitByPartition() according to analysis. And it will be
set when creating new split nodes.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/planner/plan/node/metadata/write/view/CreateLogicalViewNode.java