You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hive.apache.org by "Paul Yang (JIRA)" <ji...@apache.org> on 2009/11/03 04:39:59 UTC
[jira] Updated: (HIVE-554) Add GenericUDF to create arrays, maps,
and structs
[ 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.