Enum QueryRowCardinalityV2 

pub enum QueryRowCardinalityV2 {
    ExactlyOne,
    BoundedMany,
}

Cardinality required from a hydrated row query.

Variants

ExactlyOne

Require exactly one distinct selected-identity tuple.

BoundedMany

Return one bounded stable row window.

Implementations

impl QueryRowCardinalityV2

pub const fn is_exactly_one(self) -> bool

Return whether exactly one distinct selected tuple is required.

Trait Implementations

impl Clone for QueryRowCardinalityV2

fn clone(&self) -> QueryRowCardinalityV2

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for QueryRowCardinalityV2

impl Debug for QueryRowCardinalityV2

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QueryRowCardinalityV2

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for QueryRowCardinalityV2

impl PartialEq for QueryRowCardinalityV2

fn eq(&self, other: &QueryRowCardinalityV2) -> bool

Equality operator ==.

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

Inequality operator !=.

impl Serialize for QueryRowCardinalityV2

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for QueryRowCardinalityV2