Enum Quantifier 

pub enum Quantifier {
    Unstated,
    All,
    Distinct,
}

Whether a set operator or an aggregate keeps duplicates.

Unstated is not the same as All even though the two agree for UNION, because they disagree for INTERSECT in some dialects and because an error message that says what was written is better than one that says what it was taken to mean.

Variants

Unstated

Neither word was written.

All

ALL.

Distinct

DISTINCT.

Trait Implementations

impl Clone for Quantifier

fn clone(&self) -> Quantifier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Quantifier

impl Debug for Quantifier

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

Formats the value using the given formatter.

impl Eq for Quantifier

impl PartialEq for Quantifier

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Quantifier