Enum Operator 

pub enum Operator {
    Eq,
    EqValidity,
    NotEq,
    NotEqValidity,
    Lt,
    LtEq,
    Gt,
    GtEq,
    Plus,
    Minus,
    Multiply,
    RustDivide,
    TrueDivide,
    FloorDivide,
    Modulus,
    And,
    Or,
    Xor,
    LogicalAnd,
    LogicalOr,
}

Available on crate feature lazy only.

Variants

Eq

EqValidity

NotEq

NotEqValidity

Lt

LtEq

Gt

GtEq

Plus

Minus

Multiply

RustDivide

Rust division semantics, this is what Rust interface / dispatches to

TrueDivide

Python division semantics, converting to floats. This is what python / operator dispatches to

FloorDivide

Floor division semantics, this is what python // dispatches to

Modulus

And

Or

Xor

LogicalAnd

LogicalOr

Implementations

impl Operator

pub fn is_comparison(&self) -> bool

pub fn is_null_propagating_comparison(&self) -> bool

Comparisons that unconditionally propagate nulls: a null operand gives a null result. Excludes the validity variants (EqValidity / NotEqValidity), which treat null as a regular value.

pub fn is_bitwise(&self) -> bool

pub fn is_comparison_or_bitwise(&self) -> bool

pub fn swap_operands(self) -> Option<Operator>

The operator such that b op.swap_operands() a is equivalent to a op b; None for non-commutative arithmetic, where no such operator exists (swapping requires rewriting an operand: a - b == -b + a).

pub fn negate(self) -> Option<Operator>

The complementary comparison, such that !(a op b) is equivalent to a op.negate() b; None for non-comparison operators. Exact because nulls stay null under negation (Kleene logic) and Polars orders floats totally, unlike IEEE (where !(a < b) does not imply a >= b for NaN).

pub fn is_arithmetic(&self) -> bool

Trait Implementations

impl Clone for Operator

fn clone(&self) -> Operator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Operator

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Operator

fn deserialize<__D>( __deserializer: __D, ) -> Result<Operator, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Operator

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

Formats the value using the given formatter.

impl From<InequalityOperator> for Operator

Available on crate feature iejoin only.

fn from(value: InequalityOperator) -> Operator

Converts to this type from the input type.

impl Hash for Operator

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Operator

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

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Operator

impl Eq for Operator

impl StructuralPartialEq for Operator