Enum PredicateValue 

pub enum PredicateValue {
    Boolean(Option<bool>),
    Int8(Option<i8>),
    Int16(Option<i16>),
    Int32(Option<i32>),
    Int64(Option<i64>),
    Float32(Option<f32>),
    Float64(Option<f64>),
    Utf8(Option<String>),
}

A simplified value type for predicates

This is a simplified representation of scalar values for predicate evaluation. In the future, this could be replaced with arrow’s ScalarValue if available.

Variants

Boolean(Option<bool>)

Boolean value

Int8(Option<i8>)

8-bit signed integer

Int16(Option<i16>)

16-bit signed integer

Int32(Option<i32>)

32-bit signed integer

Int64(Option<i64>)

64-bit signed integer

Float32(Option<f32>)

32-bit floating point

Float64(Option<f64>)

64-bit floating point

Utf8(Option<String>)

UTF-8 string

Trait Implementations

impl Clone for PredicateValue

fn clone(&self) -> PredicateValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PredicateValue

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

Formats the value using the given formatter.

impl PartialEq for PredicateValue

fn eq(&self, other: &PredicateValue) -> 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 PredicateValue