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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-14945) Add support for multiple WHEN MATCHED clauses
Date Tue, 01 Nov 2016 01:02:38 GMT

     [ https://issues.apache.org/jira/browse/HIVE-14945?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eugene Koifman updated HIVE-14945:
----------------------------------
    Attachment: HIVE-14943.6.patch

patch 6 - support for update and delete in the same merge stmt

> Add support for multiple WHEN MATCHED clauses
> ---------------------------------------------
>
>                 Key: HIVE-14945
>                 URL: https://issues.apache.org/jira/browse/HIVE-14945
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>         Attachments: HIVE-14943.6.patch
>
>
> Different vendors have different rules.
> HIVE-14943 only allows 1 WHEN MATCHED clause
> IBM Allows > 1 WHEN MATCHED clause https://www.ibm.com/support/knowledgecenter/SSEPGG_9.5.0/com.ibm.db2.luw.sql.ref.doc/doc/r0010873.html
> So does SQL Server https://msdn.microsoft.com/en-us/library/bb510625.aspx
> everyone seems to support update/delete/insert - in that order



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