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DB prune: Check if user follows hashtag with no objects before deletion

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Phantasm 2025-10-14 22:59:15 +02:00 • committed by Phantasm
commit e32ab8aef2
2 changed files with 7 additions and 1 deletions
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1
changelog.d/prune-hashtag-follow-3376.fix Normal file
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@ -0,0 +1 @@
DB prune: Check if user follows hashtag with no objects before deletion

7
lib/mix/tasks/pleroma/database.ex
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@ -226,7 +226,12 @@ defmodule Mix.Tasks.Pleroma.Database do
DELETE FROM hashtags AS ht DELETE FROM hashtags AS ht
WHERE NOT EXISTS ( WHERE NOT EXISTS (
SELECT 1 FROM hashtags_objects hto SELECT 1 FROM hashtags_objects hto
WHERE ht.id = hto.hashtag_id) WHERE ht.id = hto.hashtag_id
)
AND NOT EXISTS (
SELECT 1 FROM user_follows_hashtag ufh
WHERE ht.id = ufh.hashtag_id
)
""" """
|> Repo.query() |> Repo.query()