Module differential_dataflow::operators::join

source ·
Expand description

Match pairs of records based on a key.

The various join implementations require that the units of each collection can be multiplied, and that the multiplication distributes over addition. That is, we will repeatedly evaluate (a + b) * c as (a * c)

  • (b * c), and if this is not equal to the former term, little is known about the actual output.

Structs§

  • EffortBuilder
    A container builder that tracks the length of outputs to estimate the effort of join closures.

Traits§

  • Join
    Join implementations for (key,val) data.
  • JoinCore
    Matches the elements of two arranged traces.

Functions§

  • join_traces
    An equijoin of two traces, sharing a common key type.

Type Aliases§