public static Boolean isTableTag(String refName) {
    Matcher ref = TAG.matcher(refName);
    return ref.matches();
  }
Return HiveAuthorizerFactory used by new authorization plugin interface.
@param conf
@param authorizationProviderConfKey
@return
@throws HiveException if HiveAuthorizerFactory specified in configuration could not
ql/src/java/org/apache/hadoop/hive/ql/metadata/HiveUtils.java