Struct AggregateSpec 

pub struct AggregateSpec {
    pub group_by: usize,
    pub aggregates: Vec<(AggregateFunction, usize)>,
}

A grouped aggregation over one Int64 key.

Fields

group_by: usize

Index of the Int64 group-by column.

aggregates: Vec<(AggregateFunction, usize)>

(function, input column index) pairs, in output order.

Trait Implementations

impl Clone for AggregateSpec

fn clone(&self) -> AggregateSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggregateSpec

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AggregateSpec

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for AggregateSpec

impl PartialEq for AggregateSpec

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for AggregateSpec

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 AggregateSpec