[jira] [Updated] (HIVE-17077) Hive should raise StringIndexOutOfBoundsException when LPAD/RPAD len character's value is negative number

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-17077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated HIVE-17077:
----------------------------------
    Labels: pull-request-available  (was: )

> Hive should raise StringIndexOutOfBoundsException when LPAD/RPAD len character's value is negative number
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-17077
>                 URL: https://issues.apache.org/jira/browse/HIVE-17077
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Lingang Deng
>            Assignee: Lingang Deng
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> lpad(rpad) throw a exception when the second argument a negative number, as follows,
> {code:java}
> hive> select lpad("hello", -1 ,"h");
> FAILED: StringIndexOutOfBoundsException String index out of range: -1
> hive> select rpad("hello", -1 ,"h");
> FAILED: StringIndexOutOfBoundsException String index out of range: -1
> {code}
> Maybe we should return friendly result such as mysql.
> {code:java}
> mysql> select lpad("hello", -1 ,"h");
> +----------------------+
> | lpad("hello", -1 ,"h") |
> +----------------------+
> | NULL                 |
> +----------------------+
> 1 row in set (0.00 sec)
> mysql> select rpad("hello", -1 ,"h");
> +----------------------+
> | rpad("hello", -1 ,"h") |
> +----------------------+
> | NULL                 |
> +----------------------+
> 1 row in set (0.00 sec)
> {code}



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