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Posted to issues@hive.apache.org by "Zoltan Haindrich (JIRA)" <ji...@apache.org> on 2018/10/06 09:55:00 UTC

[jira] [Commented] (HIVE-20702) Account for overhead from datastructure aware estimations during mapjoin selection

    [ https://issues.apache.org/jira/browse/HIVE-20702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16640654#comment-16640654 ] 

Zoltan Haindrich commented on HIVE-20702:
-----------------------------------------

I didn't thinked about string overhead...seems like the right thing to do - since this data is striped in the hashmap bytearray storage
+1 pending tests

> Account for overhead from datastructure aware estimations during mapjoin selection
> ----------------------------------------------------------------------------------
>
>                 Key: HIVE-20702
>                 URL: https://issues.apache.org/jira/browse/HIVE-20702
>             Project: Hive
>          Issue Type: Bug
>          Components: Statistics
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>         Attachments: HIVE-20702.patch
>
>




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