message: [crud] Improving performance
diff: @@ -165,14 +165,14 @@ class TableModelView(DatasourceModelView, DeleteMixin, YamlExportMixin): # noqa
  order_columns = ['modified']
  add_columns = ['database', 'schema', 'table_name']
  edit_columns = [
  - 'table_name', 'sql', 'filter_select_enabled', 'slices',
  + 'table_name', 'sql', 'filter_select_enabled',
  'fetch_values_predicate', 'database', 'schema',
  'description', 'owner',
  'main_dttm_col', 'default_endpoint', 'offset', 'cache_timeout',
  'is_sqllab_view', 'template_params',
  ]
  base_filters = [['id', DatasourceFilter, lambda: []]]
  - show_columns = edit_columns + ['perm']
  + show_columns = edit_columns + ['perm', 'slices']
  related_views = [TableColumnInlineView, SqlMetricInlineView]
  base_order = ('changed_on', 'desc')
  search_columns = (
  