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From "Rui Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-17193) HoS: don't combine map works that are targets of different DPPs
Date Fri, 20 Oct 2017 07:35:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rui Li updated HIVE-17193:
--------------------------
    Description: 
Suppose {{srcpart}} is partitioned by {{ds}}. The following query can trigger the issue:
{code}
explain
select * from
  (select srcpart.ds,srcpart.key from srcpart join src on srcpart.ds=src.key) a
join
  (select srcpart.ds,srcpart.key from srcpart join src on srcpart.ds=src.value) b
on a.key=b.key;
{code}

> HoS: don't combine map works that are targets of different DPPs
> ---------------------------------------------------------------
>
>                 Key: HIVE-17193
>                 URL: https://issues.apache.org/jira/browse/HIVE-17193
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Rui Li
>            Assignee: Rui Li
>
> Suppose {{srcpart}} is partitioned by {{ds}}. The following query can trigger the issue:
> {code}
> explain
> select * from
>   (select srcpart.ds,srcpart.key from srcpart join src on srcpart.ds=src.key) a
> join
>   (select srcpart.ds,srcpart.key from srcpart join src on srcpart.ds=src.value) b
> on a.key=b.key;
> {code}



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