Joining Sources

In rekuiper, JOIN operations correlate data from multiple sources.

rekuiper supports two join combinations:

• Stream-to-Stream Join: Joins multiple unbounded streams. Stream-to-stream joins require an explicit window definition.
• Stream-to-Table Join: Joins a stream to a table. Arriving stream events trigger join calculations against current table records.

Supported join types include INNER, LEFT, RIGHT, FULL, and CROSS.