function views_handler::use_group_by
Provides the handler some groupby.
2 methods override views_handler::use_group_by()
- views_handler_area::use_group_by in handlers/
views_handler_area.inc  - Area handlers shouldn't have groupby.
 - views_handler_relationship::use_group_by in handlers/
views_handler_relationship.inc  - You can't groupby a relationship.
 
File
- 
              includes/
handlers.inc, line 445  
Class
- views_handler
 - Base handler, from which all the other handlers are derived. It creates a common interface to create consistency amongst handlers and data.
 
Code
public function use_group_by() {
  return TRUE;
}