[
https://issues.apache.org/jira/browse/KAFKA-18196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17927042#comment-17927042
]
Matthias J. Sax commented on KAFKA-18196:
-----------------------------------------
Not 100% sure – guess we would need to look into the code in more detail,
and/or write a small test program to compare the diff between "not enabled" and
"enabled". – If enabling would be possible by default, I would assume we would
just have done it, instead of add the optimization flag, so I assume the KIP
would contain some information? Did you check it (I did not – no time right
now).
> Reuse window store for stream-stream self-join
> ----------------------------------------------
>
> Key: KAFKA-18196
> URL: https://issues.apache.org/jira/browse/KAFKA-18196
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: A. Sophie Blee-Goldman
> Assignee: Kuan Po Tseng
> Priority: Major
>
> We can optimize the stream-stream self-join by using only a single copy of
> the state store. Right now this operator gets compiled down into two separate
> window stores for each side, even though both sides are identical.
> See https://github.com/apache/kafka/pull/18111#discussion_r1876844961
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
