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26232623A ``QuerySet`` typically caches its results internally so that repeated
26242624evaluations do not result in additional queries. In contrast, ``iterator()``
2625- will read results directly, without doing any caching at the ``QuerySet`` level
2626- (internally, the default iterator calls ``iterator()`` and caches the return
2627- value). For a ``QuerySet`` which returns a large number of objects that you
2625+ will read results directly, without doing any caching at the ``QuerySet``
2626+ level. For a ``QuerySet`` which returns a large number of objects that you
26282627only need to access once, this can result in better performance and a
26292628significant reduction in memory.
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