protected HiveConf setUpDriverSession(HiveConf hiveConf) {
    return new HiveConf(hiveConf);
  }
This is the final step of the compaction, which can vary based on compaction type. Usually this involves some file
operation.
@param tmpTableName The name of the temporary table.
@param conf hive configuration.
@throws IOException failed to execute file system operation.
@throws HiveException failed to execute file operation within hive.
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/QueryCompactor.java