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https://issues.apache.org/jira/browse/FLINK-20785?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timo Walther closed FLINK-20785.
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Resolution: Won't Fix
Since the old planner has been removed, I will close this issue now.
> MapRelDataType for legacy planner has wrong digest
> --------------------------------------------------
>
> Key: FLINK-20785
> URL: https://issues.apache.org/jira/browse/FLINK-20785
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Legacy Planner
> Affects Versions: 1.12.0
> Reporter: Danny Chen
> Priority: Minor
> Labels: auto-deprioritized-major
>
> In the legacy planner, we create the {{MapRelDataType}} ignoring the key and
> value nullability. If we implements the digest correctly, it would conflict
> with the logic.
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