DROP TABLE IF EXISTS channel_invites CASCADE;
DROP TABLE IF EXISTS channel_dialogs CASCADE;
DROP TABLE IF EXISTS channel_admin_log_events CASCADE;
DROP TABLE IF EXISTS channel_update_events CASCADE;
DROP TABLE IF EXISTS channel_messages CASCADE;
DROP TABLE IF EXISTS channel_members CASCADE;
DROP TABLE IF EXISTS channel_usernames CASCADE;
DROP TABLE IF EXISTS channel_invite_hashes CASCADE;
DROP TABLE IF EXISTS channels CASCADE;