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Lots of duplicated queries #617

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bixbyr opened this issue May 30, 2023 · 1 comment
Open

Lots of duplicated queries #617

bixbyr opened this issue May 30, 2023 · 1 comment

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@bixbyr
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bixbyr commented May 30, 2023

I am generating a crazy huge number of queries on pages where I have a lot of thumbnails. The django-debug-toolbar is showing me this comes from some places where I am iterating through a query set and getting a thumbnail for each item. Is there a way to select_related or otherwise solve the N+1 problem here? I don't see anything in the documentation which seems like it would answer this.

@benzkji
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benzkji commented Nov 4, 2023

It will probably be hard with a select related, just because it's a template tag. I noticed the same as you, when rendering many thumbnails. It gets slow. I wonder if adding another cache layer could help - redis/memcached and the like would sure be much faster, than the Django ORM.

Adds more complexity, though. You could cache your template fragement, but that depends on your use case: https://docs.djangoproject.com/en/4.2/topics/cache/#template-fragment-caching

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