hadoop-hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Paul Yang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-554) Add GenericUDF to create arrays, maps, and structs
Date Tue, 03 Nov 2009 03:39:59 GMT

     [ https://issues.apache.org/jira/browse/HIVE-554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Paul Yang updated HIVE-554:
---------------------------

    Attachment: HIVE-554.2.patch

Sorry, I had misinterpreted what you mean by display string.

* Changed getDisplayString() methods to show 'array(...)' and 'map(...)'
* Reused return containers for array and map

> Add GenericUDF to create arrays, maps, and structs
> --------------------------------------------------
>
>                 Key: HIVE-554
>                 URL: https://issues.apache.org/jira/browse/HIVE-554
>             Project: Hadoop Hive
>          Issue Type: New Feature
>            Reporter: Zheng Shao
>            Assignee: Paul Yang
>         Attachments: HIVE-554.1.patch, HIVE-554.2.patch
>
>
> Here is an example:
> {code}
> SELECT array(1,2,3)[3], map("a":1,"b":2,"c":3)["a"], struct(user_id:3, revenue: sum(rev))
> FROM table
> GROUP BY user_id;
> {code}
> This is relatively easy to do with the GenericUDF framework, and will greatly increase
the flexibility of the language.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message