public static boolean isLocklessReadsEnabled(Table table, HiveConf conf) {
    return HiveConf.getBoolVar(conf, HiveConf.ConfVars.HIVE_ACID_LOCKLESS_READS_ENABLED)
        && AcidUtils.isTransactionalTable(table);
  }
Since Hive 4.0, compactor produces directories with {@link #VISIBILITY_PATTERN} suffix.
_v0 is equivalent to no suffix, for backwards compatibility.
ql/src/java/org/apache/hadoop/hive/ql/io/AcidUtils.java