Enum OccurrenceValue 

pub enum OccurrenceValue {
    ExplicitNull,
    EmptyArray,
    Stored {
        ty: LogicalType,
    },
}

ExplicitNull is a payload-free occurrence state, never a domain type.

Variants

ExplicitNull

A property explicitly set to null.

EmptyArray

Marker occurrence for an array property with zero elements. Arrays are stored element-wise, so an empty array has no elements to persist; this payload-free marker (stored at elem 0) lets reconstruction emit a genuine [] — matching prod, where empty arrays are preserved rather than collapsed to null.

Stored

A stored scalar value of a logical type; its order-preserving payload is stored inline in the occurrence row.

Fields

ty: LogicalType

Logical type of the stored scalar.

Implementations

impl OccurrenceValue

pub fn is_null(&self) -> bool

Report whether this occurrence is an explicit null.

Trait Implementations

impl Clone for OccurrenceValue

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OccurrenceValue

impl Debug for OccurrenceValue

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for OccurrenceValue

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for OccurrenceValue

impl PartialEq for OccurrenceValue

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for OccurrenceValue

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 OccurrenceValue