IIRC, I've read comments elsewhere that pictrs caches for 6 months, but I can't independently verify. I hope this gets a broader answer because I'm still on the fence about getting an instance set up for myself and some small communities.
this post was submitted on 17 Jun 2023
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I believe the activity table in Postgres is retained for 6 months (although I’m purging mine daily) and the pict-rs cache is 168 hours (1 week).
How do you purge daily? Also, does that delete any post history or anything in a similar vein?
I’m running the following SQL, although I’m not actually sure it’s as necessary since 0.18.3. It doesn’t delete any post history or anything.
DELETE FROM activity WHERE published < NOW() - INTERVAL '1 day';