You are viewing a plain text version of this content. The canonical link for it is here.

Posted to jira@kafka.apache.org by "John Roesler (Jira)" <ji...@apache.org> on 2019/10/17 03:59:00 UTC

[jira] [Created] (KAFKA-9058) Foreign Key Join should not require a queriable store

John Roesler created KAFKA-9058:
-----------------------------------

             Summary: Foreign Key Join should not require a queriable store
                 Key: KAFKA-9058
                 URL: https://issues.apache.org/jira/browse/KAFKA-9058
             Project: Kafka
          Issue Type: Improvement
    Affects Versions: 2.4.0
            Reporter: John Roesler
            Assignee: John Roesler


While resolving KAFKA-9000, I uncovered a significant flaw in the implementation of foreign key joins. The join only works if supplied with a queriable store. I think this was simply an oversight during implementation and review.

It would be better to fix this now before the release, since the restriction it places on users could represent a significant burden. If they don't otherwise need the store to be queriable, then they shouldn't be forced to allocate enough storage for a full copy of the join result, or add the changelog topic for it either.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)