code: protected function loadTableSchema($name)
      {
          $table = new TableSchema();
          $this->resolveTableNames($table, $name);
          $this->findPrimaryKeys($table);
          if ($this->findColumns($table)) {
              $this->findForeignKeys($table);
              return $table;
          }
  
          return null;
      }
docs: {@inheritdoc}