Enum JoinCondition 

pub enum JoinCondition {
    On {
        on: Vec<(ScalarExpression, ScalarExpression)>,
        filter: Option<ScalarExpression>,
    },
    None,
}

Variants

On

Fields

on: Vec<(ScalarExpression, ScalarExpression)>

Equijoin clause expressed as pairs of (left, right) join columns

filter: Option<ScalarExpression>

Filters applied during join (non-equi conditions)

None

Trait Implementations

impl Clone for JoinCondition

fn clone(&self) -> JoinCondition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JoinCondition

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

Formats the value using the given formatter.

impl Display for JoinCondition

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

Formats the value using the given formatter.

impl Hash for JoinCondition

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

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 JoinCondition

fn eq(&self, other: &JoinCondition) -> 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 ReferenceSerialization for JoinCondition

fn encode<W: Write>( &self, writer: &mut W, is_direct: bool, reference_tables: &mut ReferenceTables, ) -> Result<(), DatabaseError>

fn decode<T: Transaction, R: Read>( reader: &mut R, drive: Option<(&T, &SharedLruCache<TableName, TableCatalog>)>, reference_tables: &ReferenceTables, ) -> Result<Self, DatabaseError>

impl Eq for JoinCondition

impl StructuralPartialEq for JoinCondition