Enum BoundExpression 

pub enum BoundExpression {
    Literal(Value),
    SlotRef(SlotRef),
    ParameterRef(ParameterSlot),
    Call {
        name: String,
        args: Vec<BoundExpression>,
    },
    Binary {
        left: Box<BoundExpression>,
        op: BinaryOperator,
        right: Box<BoundExpression>,
    },
    Cast {
        expr: Box<BoundExpression>,
        target_type: DataType,
    },
}

A bound expression that has been resolved against the plan’s slot layout and parameter schema.

Unlike the logical Expression, BoundExpression references slots and parameter slots directly, avoiding string-based resolution during execution.

Variants

Literal(Value)

SlotRef(SlotRef)

ParameterRef(ParameterSlot)

Call

Fields

name: String

args: Vec<BoundExpression>

Binary

Fields

left: Box<BoundExpression>

op: BinaryOperator

right: Box<BoundExpression>

Cast

Cast the result of an expression to a target type.

Fields

expr: Box<BoundExpression>

target_type: DataType

Trait Implementations

impl Clone for BoundExpression

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 BoundExpression

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

Formats the value using the given formatter.