Enum JoinType 

pub enum JoinType {
    Inner,
    Left,
    Right,
    Full,
    Cross,
    Lateral,
}

Connection type enumeration

Used to represent the type of join operation in a SQL/graph query

Variants

Inner

internal link

Left

left outer join

Right

right outer link

Full

full external link

Cross

Cartesian product (cross linking)

Lateral

lateral join (correlated subquery)

Implementations

impl JoinType

pub fn name(&self) -> &'static str

Get the name of the connection type

pub fn is_outer(&self) -> bool

Determine if it is an outer connection (Left/Right/Full)

pub fn is_inner(&self) -> bool

Determining whether a connection is an inner connection

pub fn is_lateral(&self) -> bool

Determine if it is a lateral join

Trait Implementations

impl Clone for JoinType

fn clone(&self) -> JoinType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for JoinType

impl Debug for JoinType

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

Formats the value using the given formatter.

impl Eq for JoinType

impl From<&str> for JoinType

fn from(s: &str) -> JoinType

Converts to this type from the input type.

impl Hash for JoinType

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for JoinType

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JoinType