create extension tencentdb_failover_slot;--Create a plugin first
select pg_create_logical_gailover_slot('slotname','pluginname');--Create a failover slot

select transform_slot_to_nonfailover('slotname');

postgres=# select * from pg_failover_slots;    
     slot_name    
----------------- 
     fs 
     fsg
   (2 rows)

select * from pg_drop_replication_slot('slotname');