Struct AggregateResult 

pub struct AggregateResult {
    pub entity: String,
    pub values: Vec<AggregateValue>,
}

Result of an aggregate query.

Fields

entity: String

Entity type that was aggregated.

values: Vec<AggregateValue>

Results for each aggregation.

Implementations

impl AggregateResult

pub fn new(entity: impl Into<String>, values: Vec<AggregateValue>) -> Self

Create a new aggregate result.

pub fn empty(entity: impl Into<String>) -> Self

Create an empty aggregate result.

pub fn first_value(&self) -> Option<&Value>

Get the first value (for single-aggregation queries).

pub fn count(&self) -> Option<i64>

Get the count value if present.

Trait Implementations

impl Archive for AggregateResult

where String: Archive, Vec<AggregateValue>: Archive,

const COPY_OPTIMIZATION: CopyOptimization<Self>

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

type Archived = ArchivedAggregateResult

The archived representation of this type.

type Resolver = AggregateResultResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve(&self, resolver: Self::Resolver, out: Place<Self::Archived>)

Creates the archived version of this value at the given position and writes it to the given output.

impl Clone for AggregateResult

fn clone(&self) -> AggregateResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggregateResult

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AggregateResult

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<__D: Fallible + ?Sized> Deserialize<AggregateResult, __D> for Archived<AggregateResult>

where String: Archive, <String as Archive>::Archived: Deserialize<String, __D>, Vec<AggregateValue>: Archive, <Vec<AggregateValue> as Archive>::Archived: Deserialize<Vec<AggregateValue>, __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<AggregateResult, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl PartialEq for AggregateResult

fn eq(&self, other: &AggregateResult) -> 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<__S: Fallible + ?Sized> Serialize<__S> for AggregateResult

where String: Serialize<__S>, Vec<AggregateValue>: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.

impl Serialize for AggregateResult

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 AggregateResult