@Override
    protected String describeResult() {
      return "statistics for " + (results == null ? 0 : results.getStatsObjSize()) + " columns";
    }
GetHelper for returning db info using directSql/JDO.
@param dbName The Database Name
@param allowSql Whether or not we allow DirectSQL to perform this query.
@param allowJdo Whether or not we allow ORM to perform this query.
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java