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From "Xiao Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-23304) Spark SQL coalesce() against hive not working
Date Thu, 01 Feb 2018 18:54:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-23304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Li updated SPARK-23304:
----------------------------
    Target Version/s: 2.3.0

> Spark SQL coalesce() against hive not working
> ---------------------------------------------
>
>                 Key: SPARK-23304
>                 URL: https://issues.apache.org/jira/browse/SPARK-23304
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Thomas Graves
>            Priority: Blocker
>
> Testing with spark 2.3 and I see a difference in the sql coalesce talking to hive vs
spark 2.2. It seems spark 2.3 ignores the coalesce.
>  
> Query:
> spark.sql("SELECT COUNT(DISTINCT(something)) FROM sometable WHERE dt >= '20170301'
AND dt <= '20170331' AND something IS NOT NULL").coalesce(160000).show()
>  
> in spark 2.2 the coalesce works here, but in spark 2.3, it doesn't.



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