@org.apache.thrift.annotation.Nullable
  public java.util.Iterator<java.util.List<java.lang.String>> getRowsIterator() {
    return (this.rows == null) ? null : this.rows.iterator();
  }
Returns true if field headerNames is set (has been assigned a value) and false otherwise
service-rpc/src/gen/thrift/gen-javabean/org/apache/hive/service/rpc/thrift/TProgressUpdateResp.java