this post was submitted on 19 Feb 2024
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Request for SQL experts: Lemmy PR to combine action tables (github.com)
submitted 6 months ago by [email protected] to c/[email protected]
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Lemmy currently uses distinct tables like post_like: (post_id, person_id, score) and post_saved. Unfortunately this causes performance issues when we have to join many of these tables to create views.

One suggestion in this PR, is to combine these into a single post_action table, with a lot of optional columns depending on the action. This solution scares me a little, because I'm afraid we might lose data integrity, and many of our constraints with so many optional columns.

Is there a better way of doing this in SQL?

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[โ€“] xmunk 7 points 6 months ago (1 children)

CharGPT has its uses, performance tuning is not (yet) one of them. I think ML in performance tuning will eventually be a huge deal when we can leverage rapid iterations and culling to perform a wide number of small tweaks and compare performance... I haven't seen a good solution to this yet, it's a really complex problem, but I think it's inevitable.

[โ€“] [email protected] 1 points 6 months ago

Isn't that what genetic algorithms were about?