Enum JoinStrategy 

pub enum JoinStrategy {
    Hash,
    NestedLoop,
    Merge,
}

Strategy to use for executing the join

Variants

Hash

Hash join - build hash table on smaller side

NestedLoop

Nested loop - iterate all combinations

Merge

Merge join - for pre-sorted inputs

Trait Implementations

impl Clone for JoinStrategy

fn clone(&self) -> JoinStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JoinStrategy

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

Formats the value using the given formatter.

impl PartialEq for JoinStrategy

fn eq(&self, other: &JoinStrategy) -> 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 Copy for JoinStrategy

impl Eq for JoinStrategy

impl StructuralPartialEq for JoinStrategy