Enum ValueImpl 

pub enum ValueImpl {
    Array(ArrayRef),
    Scalar {
        value: Datum,
        capacity: usize,
    },
}

The type-erased return value of an expression.

It can be either an array, or a scalar if all values in the array are the same.

Variants

Array(ArrayRef)

Scalar

Fields

value: Datum

capacity: usize

Implementations

impl ValueImpl

pub fn len(&self) -> usize

Number of scalars in this value.

pub fn iter(&self) -> impl ExactSizeIterator<Item = DatumRef<'_>> + '_

Iterates over all scalars in this value.

Trait Implementations

impl Clone for ValueImpl

fn clone(&self) -> ValueImpl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValueImpl

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

Formats the value using the given formatter.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, BoolArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, BytesArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, Int256Array>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, JsonbArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, ListArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, MapArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, DateArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, DecimalArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, IntervalArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, F32Array>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, F64Array>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, SerialArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, TimeArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, TimestampArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, TimestamptzArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, I16Array>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, I32Array>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, I64Array>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, StructArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, Utf8Array>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl<'a> From<&'a ValueImpl> for ValueRef<'a, VectorArray>

Converts a type-erased value to a reference of a specific array type.

fn from(value: &'a ValueImpl) -> Self

Converts to this type from the input type.

impl From<Arc<ArrayImpl>> for ValueImpl

fn from(value: ArrayRef) -> Self

Converts to this type from the input type.