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From "Pardeep Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-8385) UNION Operator in Hive
Date Tue, 07 Oct 2014 22:20:33 GMT

     [ https://issues.apache.org/jira/browse/HIVE-8385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pardeep Kumar updated HIVE-8385:
--------------------------------
          Component/s: SQL
    Affects Version/s: 0.14.0

> UNION Operator in Hive
> ----------------------
>
>                 Key: HIVE-8385
>                 URL: https://issues.apache.org/jira/browse/HIVE-8385
>             Project: Hive
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 0.14.0
>            Reporter: Pardeep Kumar
>
> While Hive has UNION ALL feature, it results in duplicate records and customers have
to write another complex query or MapReduce job to Dedup the duplicate records. UNION feature
is must have in Hive as it is in all SQL RDBMS as well as in Apache Impala.
> Not sure how much effort will it take given the fact that UNION ALL is already available.



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