1sql("DELETE FROM sessions") 2 3add_column("sessions", "token", "string", {"size": 32, "null": true}) 4change_column("sessions", "token", "string", {"size": 32, "null": false}) 5 6add_index("sessions", "token", {"unique": true, "name": "sessions_token_uq_idx"}) 7add_index("sessions", "token", {"name": "sessions_token_idx" })