Enum JoinHow 

#[non_exhaustive]
pub enum JoinHow {
    Inner,
    Left,
    Right,
}

Which rows of an equi-join come out (the JoinTypes of DataFusion’s HashJoinExec that MetalExec runs).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Inner

The pairs of rows whose keys are equal.

Left

The inner pairs, and every left (build-side) row without a match, with nulls on the right.

Right

The inner pairs, and every right (probe-side) row without a match, with nulls on the left.

Trait Implementations

impl Clone for JoinHow

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for JoinHow

impl Debug for JoinHow

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

Formats the value using the given formatter.

impl Eq for JoinHow

impl PartialEq for JoinHow

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JoinHow