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What Features Make PieFed Better/Worse (piefed.ca)

submitted 4 days ago by Paige@piefed.ca to c/piefed_meta@piefed.social

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What features made you choose PieFed over Mbin/Lemmy?
What features do they have that you’d like to see in PieFed?

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[–] wjs018@piefed.social 2 points 4 days ago (1 children)

The scale of LW is impressive as always.

Is the post_read table where info on what a user has or has not read is stored? I am wondering now if a huge db like that is the cost of implementing features like marking unread comments or posts.

...not that I have a great idea of how to do that since I don't know js at all, but db size is something to keep in mind when the intention is to have federated instances, each with their own infrastructure.

[–] MrKaplan@lemmy.world 2 points 3 days ago* (last edited 3 days ago)

yes, post_read marks which posts a user has marked as read. it links post ids with user ids and adds a timestamp on top to allow for sorting.

edit:

for comments, lemmy only stores the number of read comments per post, which is what goes into person_post_aggregates. this is a tradeoff, it has some limitations, e.g. when comments are deleted or removed, which affects the total count. as there is also a timestamp attached it might be possible to use that in combination with comment creation times, though this would likely impact query performance quite a bit more.