code: 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();
      }
docs: Load table meta data.
  
  @param logicTableName logic table name
  @param shardingRule sharding rule
  @return table meta data
  @throws SQLException SQL exception