Struct LetBinding 

pub struct LetBinding {
    pub name: String,
    pub expr: ArithmeticExpr,
}

A named score binding defined by a LET clause (VelesQL v1.10 Phase 3).

Each binding assigns an arithmetic expression to a name. Bindings are evaluated in declaration order; later bindings may reference earlier ones.

Example

LET hybrid = 0.7 * vector_score + 0.3 * bm25_score

Fields

name: String

Binding name (identifier).

expr: ArithmeticExpr

Expression to evaluate.

Trait Implementations

impl Clone for LetBinding

fn clone(&self) -> LetBinding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LetBinding

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LetBinding

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for LetBinding

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for LetBinding

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 LetBinding