Struct ExchangeDescriptor 

pub struct ExchangeDescriptor {
    pub exchange_id: ExchangeId,
    pub producer: FragmentId,
    pub consumer: FragmentId,
    pub kind: ExchangeKind,
    pub schema_fingerprint: u64,
}

One exchange edge between two fragments (spec section 12.10).

Fields

exchange_id: ExchangeId

Plan-local exchange identifier.

producer: FragmentId

Producing fragment.

consumer: FragmentId

Consuming fragment.

kind: ExchangeKind

Row movement kind.

schema_fingerprint: u64

FNV-1a fingerprint of the producer’s output column names (types join the fingerprint with the DataFusion lowering wave).

Trait Implementations

impl Clone for ExchangeDescriptor

fn clone(&self) -> ExchangeDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExchangeDescriptor

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ExchangeDescriptor

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ExchangeDescriptor

impl PartialEq for ExchangeDescriptor

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ExchangeDescriptor

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ExchangeDescriptor