@Override public PrincipalPrivilegeSet getUserPrivilegeSet(String userName, List<String> groupNames)
      throws InvalidObjectException, MetaException {
    return rawStore.getUserPrivilegeSet(userName, groupNames);
  }
getPartitionSpecsByFilterAndProjection interface is currently non-cacheable.
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/cache/CachedStore.java