docs: public TableMetaData load(final String logicTableName, final ShardingRule shardingRule) throws SQLException {
          List<TableMetaData> actualTableMetaDataList = load(getDataNodeGroups(logicTableName, shardingRule), shardingRule.getShardingDataSourceNames());
          checkUniformed(logicTableName, actualTableMetaDataList);
          return actualTableMetaDataList.iterator().next();
      }