Struct PrimaryKey 

pub struct PrimaryKey {
    pub columns: Vec<PrimaryKeyColumn>,
}

主键容器

Fields

columns: Vec<PrimaryKeyColumn>

Implementations

impl PrimaryKey

pub fn new() -> Self

pub fn column(self, pk_col: PrimaryKeyColumn) -> Self

添加一个主键列

pub fn columns( self, pk_cols: impl IntoIterator<Item = PrimaryKeyColumn>, ) -> Self

设置全部主键列

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

添加字符串类型的主键列

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

添加整数类型的主键列

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

添加二进制类型的主键列

pub fn column_inf_min(self, name: &str) -> Self

添加一个极小值列。范围查询时可以使用

pub fn column_info_max(self, name: &str) -> Self

添加一个极大值列。范围查询时可以使用

pub fn column_auto_increment(self, name: &str) -> Self

添加一个自增主键列。这个主要是在写入数据的使用用得到，查询的时候用不上

Trait Implementations

impl Clone for PrimaryKey

fn clone(&self) -> PrimaryKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrimaryKey

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

Formats the value using the given formatter.

impl Default for PrimaryKey

fn default() -> PrimaryKey

Returns the “default value” for a type.