I used function delete_data_by_key to delete all key 'users'.When I used function get_data_count('users') to check, the count still returned 9 (total repo before delete). It seems to be a soft delete.
Moreover, there are cases where I used function get_data_by_id with different ids, but it returned the same data even though I checked and found different data in custom_data.
Moreover, there are cases where I used function get_data_by_id with different ids, but it returned the same data even though I checked and found different data in custom_data.
