Enum SQLParam 

pub enum SQLParam {
    Scalar(Value),
    TypedScalar {
        value: Value,
        ty: ColumnType,
    },
    Vector(Vec<f32>),
    Tensor(Vec<Vec<f32>>),
}

Value bound to a $N placeholder.

Variants

Scalar(Value)

TypedScalar

A scalar value whose declared SQL type must survive runtime Value carrier normalization.

Fields

value: Value

ty: ColumnType

Vector(Vec<f32>)

Tensor(Vec<Vec<f32>>)

Implementations

impl SQLParam

pub fn scalar(value: Value) -> Self

pub fn typed_scalar(value: Value, ty: ColumnType) -> Self

pub fn scalar_value(&self) -> Option<&Value>

Return the scalar carrier without changing the semantics of untyped SQLParam::Scalar values.

pub fn declared_scalar_type(&self) -> Option<&ColumnType>

Return the explicit SQL type carried only by SQLParam::TypedScalar.

pub fn to_value(&self) -> Result<Value, SQLError>

Materialize the parameter carrier with ordinary SQL value semantics.

pub fn to_value_with_control( &self, control: &ProductionControl<'_>, ) -> Result<Produced<Value>, SQLError>

Copy a borrowed parameter while retaining every container and child payload under its producer’s allowance.

pub fn vector(v: Vec<f32>) -> Self

pub fn tensor(v: Vec<Vec<f32>>) -> Self

Trait Implementations

impl Clone for SQLParam

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SQLParam

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

Formats the value using the given formatter.