Struct CheckConstraint 

pub struct CheckConstraint {
    pub name: &'static str,
    pub expr: &'static str,
}

Descriptor for one table-level CHECK constraint.

Declared via #[rustango(check(name = "name", expr = "raw_sql"))]. The expression is inserted verbatim into the DDL — quote literals and reference column names yourself.

Fields

name: &'static str

Constraint name used in ALTER TABLE … ADD CONSTRAINT "name".

expr: &'static str

Raw SQL boolean expression placed inside CHECK ( … ).

Trait Implementations

impl Clone for CheckConstraint

fn clone(&self) -> CheckConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckConstraint

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

Formats the value using the given formatter.

impl Copy for CheckConstraint