John Roesler created KAFKA-9500:
-----------------------------------
Summary: Foreign-Key Join creates an invalid topology
Key: KAFKA-9500
URL: https://issues.apache.org/jira/browse/KAFKA-9500
Project: Kafka
Issue Type: Bug
Affects Versions: 2.4.0, 2.5.0, 2.4.1
Reporter: John Roesler
Assignee: John Roesler
Foreign-Key Join results are not required to be materialized by default, but
they might be needed if downstream operators need to perform lookups on the
result (such as when the join result participates in an equi-join).
Currently, if the result is explicitly materialized (via Materialized), this
works correctly, but if the result is _not_ materialized explicitly, but _is_
needed, the topology builder throws an exception that the result store isn't
added to the topology. This was an oversight in testing and review and needs to
be fixed ASAP.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
