Struct IndexDef 

pub struct IndexDef {
    pub name: String,
    pub table_name: String,
    pub columns: Vec<String>,
    pub unique: bool,
}

索引定义

Fields

name: String

索引名称

table_name: String

表名

columns: Vec<String>

列名列表

unique: bool

是否唯一索引

Implementations

impl IndexDef

pub fn new( name: impl Into<String>, table_name: impl Into<String>, columns: Vec<String>, ) -> Self

创建新的索引定义

pub fn unique(self) -> Self

设置为唯一索引

pub fn to_create_sql(&self) -> String

生成创建索引 SQL（使用当前数据库类型）

pub fn to_create_sql_for(&self, db_type: DatabaseType) -> String

生成创建索引 SQL（指定数据库类型）

pub fn to_drop_sql(&self) -> String

生成删除索引 SQL

Trait Implementations

impl Clone for IndexDef

fn clone(&self) -> IndexDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexDef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for IndexDef

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for IndexDef

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.