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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-9110) Performance of SELECT COUNT(*) FROM store_sales WHERE ss_item_sk IS NOT NULL [Spark Branch]
Date Wed, 07 Jan 2015 15:24:34 GMT

     [ https://issues.apache.org/jira/browse/HIVE-9110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xuefu Zhang updated HIVE-9110:
------------------------------
    Assignee: Rui Li  (was: Chao)

> Performance of SELECT COUNT(*) FROM store_sales WHERE ss_item_sk IS NOT NULL [Spark Branch]
> -------------------------------------------------------------------------------------------
>
>                 Key: HIVE-9110
>                 URL: https://issues.apache.org/jira/browse/HIVE-9110
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>    Affects Versions: spark-branch
>            Reporter: Brock Noland
>            Assignee: Rui Li
>
> The query 
> {noformat}
> SELECT COUNT(*) FROM store_sales WHERE ss_item_sk IS NOT NULL
> {noformat}
> could benefit from performance enhancements.



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