Struct PrimaryKeyColumn 

pub struct PrimaryKeyColumn {
    pub name: String,
    pub value: PrimaryKeyValue,
}

主键列

Fields

name: String

列名

value: PrimaryKeyValue

列的值

Implementations

impl PrimaryKeyColumn

pub fn new(name: &str, value: PrimaryKeyValue) -> Self

pub fn from_string(name: &str, value: impl Into<String>) -> Self

创建字符串类型的主键列及值

pub fn from_integer(name: &str, value: i64) -> Self

创建整数类型的主键列及值

pub fn from_binary(name: &str, value: impl Into<Vec<u8>>) -> Self

创建二进制类型的主键列及值

pub fn inf_min(name: &str) -> Self

创建无穷小值的主键列

pub fn inf_max(name: &str) -> Self

创建无穷大值的主键列

pub fn auto_increment(name: &str) -> Self

创建自增主键列，无需填充值

Trait Implementations

impl Clone for PrimaryKeyColumn

fn clone(&self) -> PrimaryKeyColumn

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PrimaryKeyColumn

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PrimaryKeyColumn

fn default() -> PrimaryKeyColumn

Returns the “default value” for a type.