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https://issues.apache.org/jira/browse/FLINK-19881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Metzger updated FLINK-19881:
-----------------------------------
Component/s: Table SQL / Runtime
> Optimize temporal join with upsert-Source(upsert-kafka)
> -------------------------------------------------------
>
> Key: FLINK-19881
> URL: https://issues.apache.org/jira/browse/FLINK-19881
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Runtime
> Reporter: Leonard Xu
> Priority: Major
>
> Currently upsert-kafka will do normalize in a physical node named
> `ChangelogNormalize`, the normalization will do a deduplicate using state and
> produce `UPDATE_AFTER`, `DELETE` changelog. We do same thing In the state of
> temporal join operator, we can merge them to one as an optimization if the
> query contains temporal join an upsert-kafka.
>
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