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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17109) Remove calls to RelMetadataQuery.instance() after Calcite 1.13 upgrade
Date Wed, 19 Jul 2017 04:35:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16092556#comment-16092556
] 

Lefty Leverenz commented on HIVE-17109:
---------------------------------------

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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