@Override
  public ValidTxnWriteIdList getValidWriteIds(List<String> tableList,
                                              String validTxnList) throws LockException {
    return new ValidTxnWriteIdList(getCurrentTxnId());
  }
An implementation of {@link HiveTxnManager} that does not support
transactions.  This provides default Hive behavior.
ql/src/java/org/apache/hadoop/hive/ql/lockmgr/DummyTxnManager.java