Enum ScalarValue 

pub enum ScalarValue {
    Null,
    Bool(bool),
    Int64(i64),
    Float64(f64),
    Utf8(String),
    Binary(Vec<u8>),
    Timestamp(i64),
}

A scalar value used in predicate evaluation.

This enum covers the value types supported by lookup table predicates. It is intentionally kept small — only types that can be pushed down to external sources are included.

Variants

Null

SQL NULL

Bool(bool)

Boolean

Int64(i64)

64-bit signed integer (covers i8/i16/i32/i64)

Float64(f64)

64-bit float (covers f32/f64)

Utf8(String)

UTF-8 string

Binary(Vec<u8>)

Raw binary data

Timestamp(i64)

Timestamp as microseconds since Unix epoch

Trait Implementations

impl Clone for ScalarValue

fn clone(&self) -> ScalarValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScalarValue

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

Formats the value using the given formatter.

impl Display for ScalarValue

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

Formats the value using the given formatter.

impl PartialEq for ScalarValue

fn eq(&self, other: &ScalarValue) -> 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 StructuralPartialEq for ScalarValue