hive-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14768) Add a new UDTF ExplodeByNumber
Date Thu, 29 Sep 2016 15:39:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15533115#comment-15533115
] 

Ashutosh Chauhan commented on HIVE-14768:
-----------------------------------------

Another thought: What if we extend UDTF explode such that it accepts long argument and then
calls forward as many time as its value. Then that in conjunction with Lateral view will give
us this desired functionality.
Reason I am suggesting this is because this udtf gives the impression that it can accept any
number of expressions as argument and will output them after evaluating, while in implementation
it just forwards without even looking at arguments. Lateral view explode more matches the
semantics since there explode will only accept one argument and still able to match row schema
via Lateral view join.

> Add a new UDTF ExplodeByNumber
> ------------------------------
>
>                 Key: HIVE-14768
>                 URL: https://issues.apache.org/jira/browse/HIVE-14768
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-14768.01.patch, HIVE-14768.02.patch
>
>
> For intersect all and except all implementation purpose.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message