[ https://issues.apache.org/jira/browse/KAFKA-7497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias J. Sax resolved KAFKA-7497. ------------------------------------ Resolution: Fixed > Kafka Streams should support self-join on streams > ------------------------------------------------- > > Key: KAFKA-7497 > URL: https://issues.apache.org/jira/browse/KAFKA-7497 > Project: Kafka > Issue Type: New Feature > Components: streams > Reporter: Robin Moffatt > Priority: Major > Labels: needs-kip > > There are valid reasons to want to join a stream to itself, but Kafka Streams > does not currently support this ({{Invalid topology: Topic foo has already > been registered by another source.}}). To perform the join requires creating > a second stream as a clone of the first, and then doing a join between the > two. This is a clunky workaround and results in unnecessary duplication of > data. -- This message was sent by Atlassian Jira (v8.20.10#820010)