Root document: https://www.tarantool.io/en/doc/latest/reference/reference_lua/box_space/_schema/ Since tarantool 2.11.1, there is no max_id field in space _schema. Requested by @drewdzzz in https://github.com/tarantool/tarantool/commit/5324d66fcdbd5e8fdfefe57181b2e03e6ad39603.