Enum ConstraintMeta 

pub enum ConstraintMeta {
    Unique {
        name: &'static str,
        columns: &'static [&'static str],
    },
    Check {
        name: &'static str,
        sql: &'static str,
    },
}

A table-level constraint.

Variants

Unique

UNIQUE (a, b).

Fields

name: &'static str

Constraint name.

columns: &'static [&'static str]

Columns.

Check

CHECK (<sql>). The SQL is written by the model author, not user input.

Fields

name: &'static str

Constraint name.

sql: &'static str

Boolean SQL expression.

Trait Implementations

impl Clone for ConstraintMeta

fn clone(&self) -> ConstraintMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ConstraintMeta

impl Debug for ConstraintMeta

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

Formats the value using the given formatter.

impl Eq for ConstraintMeta

impl PartialEq for ConstraintMeta

fn eq(&self, other: &ConstraintMeta) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ConstraintMeta