Struct ColumnDef 

pub struct ColumnDef {
    pub name: String,
    pub sql_type: String,
    pub nullable: bool,
    pub default: Option<String>,
    pub auto_increment: bool,
    pub primary_key: bool,
}

建表时的列定义

Fields

name: String

列名

sql_type: String

SQL 类型字符串

nullable: bool

是否允许 NULL

default: Option<String>

默认值

auto_increment: bool

是否自增

primary_key: bool

是否主键

Trait Implementations

impl Clone for ColumnDef

fn clone(&self) -> ColumnDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnDef

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

Formats the value using the given formatter.