Enum JoinChoice 

#[non_exhaustive]
pub enum JoinChoice {
    Measured,
    ArrowMetal,
}

Which hash joins the rule replaces (decided at plan time, from both inputs’ exact row counts).

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.

Measured

The joins the measured table (src/join_table.rs) takes: by join type, key type, the build (left) input’s rows and the probe (right) input’s rows (the default).

ArrowMetal

Every join the rule can translate, from min_rows (the benchmark’s sweep, tests).

Trait Implementations

impl Clone for JoinChoice

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 JoinChoice

impl Debug for JoinChoice

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

Formats the value using the given formatter.

impl Default for JoinChoice

fn default() -> Self

Returns the “default value” for a type.

impl Eq for JoinChoice

impl PartialEq for JoinChoice

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JoinChoice