Enum JoinConstraint 

pub enum JoinConstraint {
    None,
    On(ExprId),
    Using(Vec<NameId>),
}

The ON or USING constraint of a join.

Variants

None

No constraint was written.

On(ExprId)

ON expr.

Using(Vec<NameId>)

USING (a, b).

Trait Implementations

impl Clone for JoinConstraint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JoinConstraint

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

Formats the value using the given formatter.

impl Eq for JoinConstraint

impl PartialEq for JoinConstraint

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JoinConstraint