Module differential_dataflow::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::reduce::Reduce;
• pub use self::reduce::Threshold;
• pub use self::reduce::Count;
• pub use self::iterate::Iterate;
• 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.
• reduce
  Applies a reduction function on records grouped by key.
• threshold
  Reduce the collection to one occurrence of each distinct element.