Module operators

Specialize differential dataflow operators.

Differential dataflow introduces a small number of specialized operators on collections. These operators have specialized implementations to make them work efficiently, and are in addition to several operations defined directly on the Collection type (e.g. map and filter).

Re-exports

pub use self::negate::Negate;

pub use self::reduce::Reduce;

pub use self::reduce::Threshold;

pub use self::reduce::Count;

pub use self::iterate::Iterate;

pub use self::iterate::ResultsIn;

pub use self::join::Join;

pub use self::join::JoinCore;

pub use self::count::CountTotal;

pub use self::threshold::ThresholdTotal;

Modules

arrange

Types and traits for arranging collections.

consolidate

Aggregates the weights of equal records into at most one record.

count

Count the number of occurrences of each element.

iterate

Iterative application of a differential dataflow fragment.

join

Match pairs of records based on a key.

negate

Negate the diffs of collections and streams.

reduce

Applies a reduction function on records grouped by key.

threshold

Reduce the collection to one occurrence of each distinct element.