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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-16996) Add HLL as an alternative to FM sketch to compute stats
Date Wed, 05 Jul 2017 17:42:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-16996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16075128#comment-16075128
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Pengcheng Xiong commented on HIVE-16996:
----------------------------------------

[~ashutoshc] and [~hagleitn], it seems that if we shift from FM to HLL, we will already have
lots of plan changes. Let alone the aggregation of partition stats. Do you want to try it
in a single step (i.e., replace FM with HLL and do the aggr) or split into 2 steps? Thanks.

> Add HLL as an alternative to FM sketch to compute stats
> -------------------------------------------------------
>
>                 Key: HIVE-16996
>                 URL: https://issues.apache.org/jira/browse/HIVE-16996
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-16966.01.patch
>
>




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