pub struct CollationPlan {
    pub accumulable: Option<AccumulablePlan>,
    pub hierarchical: Option<HierarchicalPlan>,
    pub basic: Option<BasicPlan>,
    pub aggregate_types: Vec<ReductionType>,
}
Expand description

Plan for collating the results of computing multiple aggregation types.

TODO: could we express this as a delta join

Fields

accumulable: Option<AccumulablePlan>

Accumulable aggregation results to collate, if any.

hierarchical: Option<HierarchicalPlan>

Hierarchical aggregation results to collate, if any.

basic: Option<BasicPlan>

Basic aggregation results to collate, if any.

aggregate_types: Vec<ReductionType>

When we get results back from each of the different aggregation types, they will be subsequences of the sequence aggregations in the original reduce expression. We keep a map from output position -> reduction type to easily merge results back into the requested order.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Returns the “default value” for a type. Read more

Deserialize this value from the given Serde deserializer. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

Convert a Self into a Proto value.

Consume and convert a Proto back into a Self value. Read more

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Compare self to key and return true if they are equal.

Returns the argument unchanged.

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

Attaches the current Context to this type, returning a WithContext wrapper. Read more

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Wrap the input message T in a tonic::Request

Upcasts this ProgressEventTimestamp to Any. Read more

Returns the name of the concrete type of this object. Read more

Should always be Self

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more