Anssi Kääriäinen 23ca3a0194 Fixed #16759 -- Remove use of __deepcopy__ in qs.clone() ... The original problem was that queryset cloning was really expensive when filtering with F() clauses. The __deepcopy__ went too deep copying _meta attributes of the models used. To fix this the use of __deepcopy__ in qs cloning was removed. This commit results in some speed improvements across the djangobench benchmark suite. Most query_* tests are 20-30% faster, save() is 50% faster and finally complex filtering situations can see 2x to order of magnitude improvments. Thanks to Suor, Alex and lrekucki for valuable feedback.		2013-01-08 19:17:13 +02:00
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__init__.py	Remove all relative imports. We have always been at war with relative imports.	2011-10-18 00:47:49 +00:00
aggregates.py	Fixed #16759 -- Remove use of __deepcopy__ in qs.clone()	2013-01-08 19:17:13 +02:00
compiler.py	Minor improvement to proxy model handling	2012-12-30 11:20:27 +02:00
constants.py	Moved join path generation to Field	2012-12-30 11:19:19 +02:00
datastructures.py	Refactored the empty/full result logic in WhereNode.as_sql()	2012-07-01 17:21:34 +03:00
expressions.py	Fixed #19500 -- Solved a regression in join reuse	2012-12-20 21:27:00 +02:00
query.py	Fixed #16759 -- Remove use of __deepcopy__ in qs.clone()	2013-01-08 19:17:13 +02:00
subqueries.py	Fixed #19500 -- Solved a regression in join reuse	2012-12-20 21:27:00 +02:00
where.py	Fixed #16759 -- Remove use of __deepcopy__ in qs.clone()	2013-01-08 19:17:13 +02:00