Enum DocumentColumnShape 

pub enum DocumentColumnShape {
    Scalar {
        value_type: ValueTypeTag,
        optional: bool,
    },
    List {
        attribute: AttributeId,
        element_type: ValueTypeTag,
    },
}

The typed shape of one fetched document field.

Variants

Scalar

One scalar value; optional sources fetch as explicit absence.

Fields

value_type: ValueTypeTag

The exact scalar type.

optional: bool

Whether documents may carry an explicit absence here.

List

A typed list of every owned value of one attribute.

Fields

attribute: AttributeId

The listed attribute.

element_type: ValueTypeTag

The exact scalar type of every list element.

Trait Implementations

impl Clone for DocumentColumnShape

fn clone(&self) -> DocumentColumnShape

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DocumentColumnShape

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

Formats the value using the given formatter.

impl Eq for DocumentColumnShape

impl PartialEq for DocumentColumnShape

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DocumentColumnShape