[jira] Assigned: (HIVE-164) Support CASE and IF statement

["Zheng Shao (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zheng Shao reassigned HIVE-164:
-------------------------------

    Assignee: Zheng Shao  (was: David Phillips)

> Support CASE and IF statement
> -----------------------------
>
>                 Key: HIVE-164
>                 URL: https://issues.apache.org/jira/browse/HIVE-164
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>         Attachments: HIVE-164.1.patch, HIVE-164.2.patch
>
>
> See http://dev.mysql.com/doc/refman/5.0/en/control-flow-functions.html for details.
> Syntax:
> {code}
> CASE value WHEN [compare_value] THEN result [WHEN [compare_value] THEN result ...] [<ELSE result] END
> CASE WHEN [condition] THEN result [WHEN [condition] THEN result ...] [ELSE result] END 
> IF(expr1,expr2,expr3)
> {code}

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