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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2018/10/19 23:33:00 UTC
[jira] [Assigned] (HIVE-20783) Factor reduction in cost by DPP when
costing SJ reduction
[ https://issues.apache.org/jira/browse/HIVE-20783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jesus Camacho Rodriguez reassigned HIVE-20783:
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> Factor reduction in cost by DPP when costing SJ reduction
> ---------------------------------------------------------
>
> Key: HIVE-20783
> URL: https://issues.apache.org/jira/browse/HIVE-20783
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
>
> Currently, while costing the SJ in a plan, the stats of the a TS that is reduced by a SJ are not adjusted after we have decided to keep a SJ in the tree. Ideally, we could adjust the stats to take into account decisions that have already been made.
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