@Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if ((obj == null) || (getClass() != obj.getClass())) {
      return false;
    }
    IrLabel o = (IrLabel) obj;
    return Objects.equals(name, o.name);
  }
Create IrLabel with given name. The name has to be in the canonical form with respect to SQL
identifier semantics.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/planner/rowpattern/IrLabel.java