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Queryset Iterator is a tool that is useful for iterating over large datasets in Django.
Queryset Iterator iterates over large datasets in batches, which can be manually set to any batch size of your choosing, to improve performance. The iterator maintains an open database cursor to a median table containing only the primary keys of the results that would normally be obtained. Due to this, primary keys must be unique within the collection and this tool will not work should primary keys be non-unique within the database query results.
I have not had the time to properly test this tool against a large dataset and properly compile the data. This data should be coming soon...