Changes between Initial Version and Version 1 of Ticket #29725, comment 24
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- Jan 28, 2024, 10:24:29 AM (3 months ago)
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Ticket #29725, comment 24
initial v1 5 5 - How many levels and combinations of chaining need to be considered? For example, I imagine it is desirable to ensure the optimization also occurs for .all().all().all().count() too. Another example would be .all().filter().count(), where the filter is technically an empty filter, but it would return a QuerySet. 6 6 - Where would be the best level to implement the optimization? The PR handles it in ManyRelatedManager. Another possibility could be to implement this on compiler.get_from_clause(). I found this idea from reading the comment on another ticket https://code.djangoproject.com/ticket/20535#comment:3. 7 - If it is handled in the RelatedManager level, is there a way for the RelatedManager to look ahead to determine that the next function in the chain will be a .count() or .exists()? 7 8 8 9 I'm not sure if I'm asking the right questions. If anyone has any pointers for what areas I should look into, please let me know.