Struct OuterJoined 

pub struct OuterJoined<T>(/* private fields */);

Scope entry for a source on the nullable side of an outer join.

LEFT JOIN wraps the joined source, RIGHT JOIN wraps every source already in scope, and FULL JOIN wraps both.

Trait Implementations

impl<T> Clone for OuterJoined<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Copy for OuterJoined<T>

impl<T> Debug for OuterJoined<T>

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

Formats the value using the given formatter.

impl<T> Default for OuterJoined<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: ScopeEntry> ScopeEntry for OuterJoined<T>

type Key = <T as ScopeEntry>::Key

How columns refer to this source: a TableKey or an AliasKey.

type Nullable = Null

Null when an outer join can leave this source NULL.

type Sources = ()

Sources this source reads itself, such as the tables a derived table’s subquery reads from an outer query. They resolve against the enclosing query (or, for a LATERAL join, the sources joined before it). Tables and views read nothing (()).