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§
- Effort
Builder - A container builder that tracks the length of outputs to estimate the effort of join closures.
Functions§
- join_
traces - An equijoin of two traces, sharing a common key type.
Type Aliases§
- Join
Session - The session passed to join closures.