Enum AggregateSelection 

#[non_exhaustive]
pub enum AggregateSelection {
    Count {
        alias: String,
    },
    CountDistinct {
        field: String,
        alias: String,
    },
    MeasureAggregate {
        measure: String,
        function: AggregateFunction,
        alias: String,
    },
    BoolAggregate {
        field: String,
        function: BoolAggregateFunction,
        alias: String,
    },
}

Aggregate selection (what to compute)

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

COUNT(*)

Fields

alias: String

Alias for result

CountDistinct

COUNT(DISTINCT field)

Fields

field: String

Field to count

alias: String

Alias for result

MeasureAggregate

Aggregate function on a measure

Fields

measure: String

Measure column name

function: AggregateFunction

Aggregate function

alias: String

Alias for result

BoolAggregate

Boolean aggregate

Fields

field: String

Field to aggregate

function: BoolAggregateFunction

Boolean aggregate function

alias: String

Alias for result

Implementations

impl AggregateSelection

pub fn alias(&self) -> &str

Get the result alias for this selection

Trait Implementations

impl Clone for AggregateSelection

fn clone(&self) -> AggregateSelection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggregateSelection

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AggregateSelection

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for AggregateSelection

fn eq(&self, other: &AggregateSelection) -> 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 AggregateSelection

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for AggregateSelection

impl StructuralPartialEq for AggregateSelection