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https://issues.apache.org/jira/browse/HIVE-17109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16092556#comment-16092556
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Lefty Leverenz commented on HIVE-17109:
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Looks good, thanks.
> Remove calls to RelMetadataQuery.instance() after Calcite 1.13 upgrade
> ----------------------------------------------------------------------
>
> Key: HIVE-17109
> URL: https://issues.apache.org/jira/browse/HIVE-17109
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 3.0.0
> Reporter: Remus Rusanu
> Assignee: Remus Rusanu
> Fix For: 3.0.0
>
> Attachments: HIVE-17019.01.patch
>
>
> After CALCITE-1812 the code should retrieve the RelMetadataQuery from the
> planner, if needed. Calling {{RelMetadatQuery.instance()}} invalidates the
> Calcite RelNode properties memoization cache.
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