On Saturday 25 February 2006 14:07, Ned Batchelder wrote: > So there are SQL queries like this: > > SELECT field, field FROM app_model WHERE id = 50 ORDER BY date DESC > > Surely the ORDER BY clause can be omitted? Is the magic-removal > branch already fixing this?
Yep, the order by clause could be omitted. However, in magic-removal (and I guess on trunk) the same mechanism is used to get single objects and multiple objects - for single objects you just filter on the value of the primary key. So removing the ORDER BY would be more trouble than it's worth - you would have to add a special case for it (and the code to check for it might not be completely trivial), and it wouldn't have any effect on the results. I can't imagine it would have much effect on performance either, but I don't know much about DB optimisation. If you can show that it does affect performance on a popular DB then there would some motivation to change this. Regards, Luke -- Parenthetical remarks (however relevant) are unnecessary Luke Plant || L.Plant.98 (at) cantab.net || http://lukeplant.me.uk/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users -~----------~----~----~----~------~----~------~--~---
