```
See [PostgreSQL documentation](https://www.postgresql.org/docs/current/textsearch-configuration.html) and `docs/configuration/howto_search_cjk.md` for more detail.
+
+## Pruning old activities
+
+Over time, transient `Delete` activities and `Tombstone` objects
+can accumulate in your database, inflating its size. This is not ideal.
+There is a periodic task to prune these transient objects,
+but on first run this may take a while on older instances to catch up
+to the current day.
+
+=== "OTP"
+
+ ```sh
+ ./bin/pleroma_ctl database prune_task
+ ```
+
+=== "From Source"
+
+ ```sh
+ mix pleroma.database prune_task
+ ```
\ No newline at end of file