When upgrading an existing instance to version 2024.9.0, the Following Feed will initially be empty. The feed will gradually fill as new posts federate, but it may be desirable to back-fill the feed with existing data. This database script will populate the feed with the latest post of each type for all users, ensuring that data is fully populated after the update. Run this after migrations but before starting the instance. Warning: the script may take a long time to execute!
INSERT INTO latest_note (user_id, note_id, is_public, is_reply, is_quote)
SELECT
"userId" as user_id,
id as note_id,
visibility = 'public' AS is_public,
"replyId" IS NOT NULL AS is_reply,
(
"renoteId" IS NOT NULL
AND (
text IS NOT NULL
OR cw IS NOT NULL
OR "replyId" IS NOT NULL
OR "hasPoll"
OR "fileIds" != '{}'
)
) AS is_quote
FROM note
WHERE ( -- Exclude pure renotes (boosts)
"renoteId" IS NULL
OR text IS NOT NULL
OR cw IS NOT NULL
OR "replyId" IS NOT NULL
OR "hasPoll"
OR "fileIds" != '{}'
)
ORDER BY id DESC -- This part is very important: it ensures that we only load the *latest* notes of each type. Do not remove it!
ON CONFLICT DO NOTHING; -- Any conflicts are guaranteed to be older notes that we can ignore.