private void enableLocklessReadsFeature(boolean featureFlag) {
    Assume.assumeTrue(txnType == TxnType.SOFT_DELETE);
    HiveConf.setBoolVar(conf, HiveConf.ConfVars.HIVE_ACID_LOCKLESS_READS_ENABLED, featureFlag);
  }
Transaction type derived from the original query test.
ql/src/test/org/apache/hadoop/hive/ql/parse/TestParseUtils.java