protected boolean isAuthV2Enabled(){
    SessionState ss = SessionState.get();
    return (ss.isAuthorizationModeV2() &&
        HiveConf.getBoolVar(ss.getConf(), HiveConf.ConfVars.HIVE_AUTHORIZATION_ENABLED));
  }
Convert a pattern containing JDBC catalog search wildcards into
Java regex patterns.

@param pattern input which may contain '%' or '_' wildcard characters, or
these characters escaped using {@link #getSearchStringEscape()}.
@return replace %/_ with regex search characters, also handle escaped
characters.

The datanucleus module expects the wildchar as '*'. The columns search on the
other hand is done locally inside the hive code and that requires the regex wildchar
format '.*'  This is driven by the datanucleusFormat flag.
service/src/java/org/apache/hive/service/cli/operation/MetadataOperation.java