Module join

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

JoinSession

The session passed to join closures.