Enum RelationOperator

pub enum RelationOperator {
    LessThan,
    LessThanOrEqual,
    Equal,
    NotEqual,
    GreaterThanOrEqual,
    GreaterThan,
    In,
    Contains,
    ContainsKey,
    IsNot,
}

A relation operator used in WHERE and IF clauses.

Variants

LessThan

LessThanOrEqual

Equal

NotEqual

GreaterThanOrEqual

GreaterThan

In

Contains

ContainsKey

IsNot

this is not used in normal cases it is used in the MaterializedView to specify a collumn that must not be null.

Implementations

impl RelationOperator

pub fn eval<T>(&self, left: &T, right: &T) -> bool

where T: PartialOrd,

evaluates the expression for any PartialOrd implementation

Trait Implementations

impl Clone for RelationOperator

fn clone(&self) -> RelationOperator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RelationOperator

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

Formats the value using the given formatter.

impl Display for RelationOperator

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

Formats the value using the given formatter.

impl Ord for RelationOperator

fn cmp(&self, other: &RelationOperator) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for RelationOperator

fn eq(&self, other: &RelationOperator) -> 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 PartialOrd for RelationOperator

fn partial_cmp(&self, other: &RelationOperator) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for RelationOperator

impl StructuralPartialEq for RelationOperator