#12725: Combining Q objects with | is inefficient; lots of deep cloning
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Reporter: jbalogh | Owner: nobody
Status: new | Milestone:
Component: Database layer (models, ORM) | Version: 1.2-alpha
Resolution: | Keywords:
Stage: Unreviewed | Has_patch: 1
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Comment (by jbalogh):
Replying to [comment:1 Alex]:
> Specifically if the RHS has the same combinator type as the operator
being preformed than the new node can be created by just doing a list
addition on the lists of children.
I assumed that the clones were being done to preserve some immutability
guarantee in the LHS.
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Ticket URL: <http://code.djangoproject.com/ticket/12725#comment:2>
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