Enum AggregateValue 

#[non_exhaustive]
pub enum AggregateValue {
    Count(u64),
    Sum(f64),
    Avg(Option<f64>),
    Min(Option<f64>),
    Max(Option<f64>),
    DistinctCount(u64),
    Percentile(Option<f64>),
}

Computed aggregate value. Phase E-1 shipped Count; Phase E-3 adds Sum and Avg; sketches (DistinctCount, Percentile) land in Phase E-4.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Count(u64)

Row count within the group.

Sum(f64)

Sum of a numeric field across rows in the group. Rows whose field is missing / non-numeric contribute 0.0.

Avg(Option<f64>)

Arithmetic mean of a numeric field across rows in the group. Rows whose field is missing / non-numeric are excluded from both numerator and denominator (so a group with no numeric rows yields a group with an empty Avg — surfaced via the Avg(None) variant).

Min(Option<f64>)

Minimum of a numeric field across rows in the group. None when the group has no numeric rows.

Max(Option<f64>)

Maximum of a numeric field across rows in the group. None when the group has no numeric rows.

DistinctCount(u64)

Exact distinct count over a row-intrinsic / JSON field. Counts distinct string projections of the leaf value (since f64 doesn’t have Eq, we project numerics to their canonical string form). Rows whose field is missing are skipped.

Percentile(Option<f64>)

Nearest-rank exact percentile over a numeric field. None when the group has no numeric rows.

Trait Implementations

impl Clone for AggregateValue

fn clone(&self) -> AggregateValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggregateValue

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AggregateValue

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for AggregateValue

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for AggregateValue

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 AggregateValue