ActiveModel Type Integer DEFAULT_LIMIT constant DEFAULT_LIMIT Ruby on Rails 7.1.6 Since v7.1.6 Available in: v7.1.6 v7.2.3 v8.0.4 v8.1.2 Compare with: … v7.2.3 v8.0.4 v8.1.2 Column storage size in bytes. 4 bytes means an integer as opposed to smallint etc.