Enum JoinKind 

pub enum JoinKind {
    Inner,
    Left,
    Right,
    Full,
    Semi,
    Anti,
    RightSemi,
    RightAnti,
}

The kinds of join. Only the planner makes a semi join or an anti join, as pull_up_sublinks makes them from EXISTS and IN.

Variants

Inner

Left

Right

Full

Semi

Each row of the left side that has a row of the right side that matches, once, as JOIN_SEMI.

Anti

Each row of the left side that has no row of the right side that matches, as JOIN_ANTI.

RightSemi

A semi join with the sides swapped, as JOIN_RIGHT_SEMI.

RightAnti

An anti join with the sides swapped, as JOIN_RIGHT_ANTI.

Trait Implementations

impl Clone for JoinKind

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 JoinKind

impl Debug for JoinKind

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

Formats the value using the given formatter.

impl Eq for JoinKind

impl PartialEq for JoinKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JoinKind