Enum rorm::representations::FFIJoinType

#[repr(C)]
pub enum FFIJoinType {
    Join,
    CrossJoin,
    LeftJoin,
    RightJoin,
    FullJoin,
}

Representation of a join type.

Variants

Join

Normal join operation.

Equivalent to INNER JOIN

CrossJoin

Cartesian product of the tables

LeftJoin

Given: T1 LEFT JOIN T2 ON ..

First, an inner join is performed. Then, for each row in T1 that does not satisfy the join condition with any row in T2, a joined row is added with null values in columns of T2.

RightJoin

Given: T1 RIGHT JOIN T2 ON ..

First, an inner join is performed. Then, for each row in T2 that does not satisfy the join condition with any row in T1, a joined row is added with null values in columns of T1.

FullJoin

Given: T1 FULL JOIN T2 ON ..

First, an inner join is performed. Then, for each row in T2 that does not satisfy the join condition with any row in T1, a joined row is added with null values in columns of T1. Also, for each row in T1 that does not satisfy the join condition with any row in T2, a joined row is added with null values in columns of T2.

Trait Implementations

impl Clone for FFIJoinType

fn clone(&self) -> FFIJoinType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FFIJoinType

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

Formats the value using the given formatter.

impl From<FFIJoinType> for JoinType

fn from(v: FFIJoinType) -> Self

Converts to this type from the input type.

impl Copy for FFIJoinType