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https://issues.apache.org/jira/browse/FLINK-38086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Nuyanzin resolved FLINK-38086.
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Fix Version/s: 2.2.0
Resolution: Fixed
> Make ChangelogNormalize reusable if possible
> --------------------------------------------
>
> Key: FLINK-38086
> URL: https://issues.apache.org/jira/browse/FLINK-38086
> Project: Flink
> Issue Type: Technical Debt
> Components: Table SQL / Planner
> Reporter: Sergey Nuyanzin
> Assignee: Sergey Nuyanzin
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.2.0
>
>
> Sometimes there might be several ChangelogNormalize nodes like
> {code:sql}
> SELECT * FROM T WHERE f1 > 0
> UNION
> SELECT * FROM T WHERE f1 < 10
> {code}
> Currently filters are pushdown and changelog normalize can not be reused
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