Struct Count

pub struct Count {
    pub up_to: Option<i64>,
}

Count of entities that match the query. The COUNT(*) aggregation function operates on the entire entity so it does not require a field reference.

This type is not used in any activity, and only used as part of another schema.

Fields

up_to: Option<i64>

Optional. Optional constraint on the maximum number of entities to count. This provides a way to set an upper bound on the number of entities to scan, limiting latency, and cost. Unspecified is interpreted as no bound. If a zero value is provided, a count result of zero should always be expected. High-Level Example: AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k ); Requires: * Must be non-negative when present.

Trait Implementations

impl Clone for Count

fn clone(&self) -> Count

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Count

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

Formats the value using the given formatter.

impl Default for Count

fn default() -> Count

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Count

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Count

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Part for Count