A collection of database related tasks

## Replace embedded objects with their references

Replaces embedded objects with references to them in the objects table. Only needs to be ran once. The reason why this is not a migration is because it could significantly increase the database size after being ran, however after this VACUUM FULL will be able to reclaim about 20% (really depends on what is in the database, your mileage may vary) of the db size before the migration.

 mix pleroma.database remove_embedded_objects

Options:

• --vacuum - run VACUUM FULL after the embedded objects are replaced with their references

Prune old objects from the database

mix pleroma.database prune_objects

Create a conversation for all existing DMs. Can be safely re-run.

mix pleroma.database bump_all_conversations

Remove duplicated items from following and update followers count for all users

mix pleroma.database update_users_following_followers_counts

Fix the pre-existing "likes" collections for all objects

mix pleroma.database fix_likes_collections