Enum GroupKey 

pub enum GroupKey {
    Origin(u64),
    Seq(SeqNum),
    OriginSeq {
        origin: u64,
        seq: SeqNum,
    },
}

Row-intrinsic group key for OperatorPlan::AggregateCount. Mirrors the shape of super::planner::JoinKeyMode but materializes the actual value (not just the mode) so the aggregate row can carry the group identifier verbatim.

Variants

Origin(u64)

Grouped by ResultRow::origin.

Seq(SeqNum)

Grouped by ResultRow::seq.

OriginSeq

Grouped by the (origin, seq) tuple.

Fields

origin: u64

Chain origin.

seq: SeqNum

Seq within that chain.

Trait Implementations

impl Clone for GroupKey

fn clone(&self) -> GroupKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GroupKey

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for GroupKey

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for GroupKey

impl Hash for GroupKey

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 GroupKey

fn eq(&self, other: &GroupKey) -> 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 Serialize for GroupKey

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 GroupKey