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

Posted to issues@flink.apache.org by "Dawid Wysakowicz (Jira)" <ji...@apache.org> on 2025/03/14 16:32:00 UTC

[jira] [Created] (FLINK-37477) Drop ChangelogNormalize for a StreamJoin

Dawid Wysakowicz created FLINK-37477:
----------------------------------------

             Summary: Drop ChangelogNormalize for a StreamJoin
                 Key: FLINK-37477
                 URL: https://issues.apache.org/jira/browse/FLINK-37477
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / Planner
            Reporter: Dawid Wysakowicz
            Assignee: Dawid Wysakowicz
             Fix For: 2.1.0


StreamExecJoin can consume deletes on key if the join conditions is on primary keys. The state lookups happen using the key. However for deletes it uses the currently incoming record, which in case of DELETE may be a DELETE on key. Given that we have the information about previous value, we can emit the full delete instead. This will make JOIN operator work similarly like ChangelogNormalize.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)