id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
18748	Remove dupe-avoidance logic from the ORM	Anssi Kääriäinen	nobody	"There is some complicated-looking and zero documented logic related to dupe avoidance in sql/query.py and sql/compiler.py. I began to wander what exactly the dupe avoidance does. It turns out it does nothing. I removed the dupe-avoidance, and all tests still pass.

The main benefit is easier to follow code. There should be a slight speed advantage, too, but it is so small it is unmeasurable. However I did confirm the removal of dupe-avoidance doesn't lead to speed problems using djangobench.

Patch can be found from: https://github.com/akaariai/django/tree/dupe_away

I am marking this as RFC. I will likely commit this one soon if nobody complains."	Cleanup/optimization	closed	Database layer (models, ORM)	dev	Normal	fixed			Ready for checkin	1	0	0	0	0	0