Type restrictions self restriction Classes as restrictions Type restrictions in splats Free variables Type restrictions Type restrictions are applied to method parameters to...

Type reflection Type reflection Crystal provides basic methods to do type reflection, casting and introspection.

Type inference With type restrictions Without type restrictions 1. Assigning a literal value 2. Assigning the result of invoking the class method new 3. Assigning a variable th...

Type grammar Paths and generics Union Nilable Pointer StaticArray Tuple NamedTuple Proc self class Underscore typeof Type grammar When: specifying type restriction...

Using schemas to enhance the Rego type checker Passing a single file with -s Passing a directory with -s Usage scenario with a single schema file Schema annotations Annotation ...

blob type KV example Code description Running log blob type KV example This example mainly demonstrates the related functions of blob KV. Blob KV is a more commonly used type,...

Type erasure Type erasure Wikipedia defines type erasure as the following: the load-time process by which explicit type annotations are removed from a program before it is ex...

Data Type Basic Data Type Timestamp Absolute timestamp Relative timestamp Data Type Basic Data Type IoTDB supports the following data types: BOOLEAN (Boolean) INT32 (Inte...

CREATE TYPE 功能描述 注意事项 语法格式 参数说明 示例 相关链接 CREATE TYPE 功能描述 在当前数据库中定义一种新的数据类型。定义数据类型的用户将成为该数据类型的拥有者。类型只适用于行存表 有五种形式的CREATE TYPE，分别为：复合类型、基本类型、shell类型、枚举类型和集合类型。 复合类型 复合类...

A Note on Soundness Starting out Comparing two functions Function Parameter Bivariance Optional Parameters and Rest Parameters Functions with overloads Enums Classes Privat...