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Posted to issues@hive.apache.org by "Nandakumar (JIRA)" <ji...@apache.org> on 2017/02/02 13:59:51 UTC
[jira] [Commented] (HIVE-15792) Hive should raise SemanticException
when LPAD/RPAD pad character's length is 0
[ https://issues.apache.org/jira/browse/HIVE-15792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15849934#comment-15849934 ]
Nandakumar commented on HIVE-15792:
-----------------------------------
[~thejas], Is it ok to throw SemanticException in this case or can we return the value unmodified, since there is nothing to pad?
> Hive should raise SemanticException when LPAD/RPAD pad character's length is 0
> ------------------------------------------------------------------------------
>
> Key: HIVE-15792
> URL: https://issues.apache.org/jira/browse/HIVE-15792
> Project: Hive
> Issue Type: Improvement
> Reporter: Zoltan Chovan
> Assignee: Nandakumar
> Priority: Minor
>
> For example SELECT LPAD('A', 2, ''); will cause an infinite loop and the running query will hang without any error.
> It would be great if this could be prevented by checking the pad character's length and if it's 0 then throw a SemanticException.
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