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https://issues.apache.org/jira/browse/FLINK-11973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17333976#comment-17333976
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Flink Jira Bot commented on FLINK-11973:
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This issue was marked "stale-assigned" and has not received an update in 7
days. It is now automatically unassigned. If you are still working on it, you
can assign it to yourself again. Please also give an update about the status of
the work.
> computeSelfCost method should not return null to avoid NPE
> ----------------------------------------------------------
>
> Key: FLINK-11973
> URL: https://issues.apache.org/jira/browse/FLINK-11973
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / Planner
> Reporter: godfrey he
> Assignee: godfrey he
> Priority: Major
> Labels: stale-assigned
>
> Currently, many `computeSelfCost` methods return null if some kind of
> metadata is unavailable. That will throw NPE in Calcite.
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