DROP TYPE Synopsis Description Parameters Examples Compatibility See Also DROP TYPE Removes a data type. Synopsis DROP TYPE [ IF EXISTS ] <name> [, ...] [ CAS...

Type conversions Type conversions Syntactically a type conversion is like a procedure call, but a type name replaces the procedure name. A type conversion is always safe in th...

Auto type Auto type The auto type can only be used for return types and parameters. For return types it causes the compiler to infer the type from the routine body: proc retu...

cstring type cstring type The cstring type meaning compatible string is the native representation of a string for the compilation backend. For the C backend the cstring type r...

Character type Character type The character type is named char in Nim. Its size is one byte. Thus it cannot represent an UTF-8 character, but a part of it. The reason for this...

Creating Types from Types Generics Keyof Type Operator Typeof Type Operator Indexed Access Types Conditional Types Mapped Types Template Literal Types

DROP TYPE 功能描述 语法格式 参数说明 示例 相关链接 DROP TYPE 功能描述 删除一个用户定义的数据类型。superuser、sysadmin及类型所有者才有删除权限。 语法格式 DROP TYPE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRI...

Function Type Function Type As we’ve added a new possible lval type with the enumeration LVAL_FUN . We should update all our relevant functions that work on lvals to deal cor...

Type Checking Type Checking Hamler is strongly typed with compile type checking. So at compile time we can ensure that our program is type-safe, and this can help programmers t...

创建类型 概要 描述 参数 注意 示例 兼容性 另见 创建类型 描述一个新的数据类型。 概要 CREATE TYPE name AS ( attribute_name data_type [, ... ] ) CREATE TYPE name AS ENUM ( 'label' [, ......