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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2020/01/10 06:35:00 UTC
[jira] [Closed] (SPARK-29776) rpad and lpad should return NULL when
padstring parameter is empty
[ https://issues.apache.org/jira/browse/SPARK-29776?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun closed SPARK-29776.
---------------------------------
> rpad and lpad should return NULL when padstring parameter is empty
> ------------------------------------------------------------------
>
> Key: SPARK-29776
> URL: https://issues.apache.org/jira/browse/SPARK-29776
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: ABHISHEK KUMAR GUPTA
> Priority: Major
>
> As per rpad definition
> rpad
> rpad(str, len, pad) - Returns str, right-padded with pad to a length of len
> If str is longer than len, the return value is shortened to len characters.
> *In case of empty pad string, the return value is null.*
> Below is Example
> In Spark:
> {code}
> 0: jdbc:hive2://10.18.19.208:23040/default> SELECT rpad('hi', 5, '');
> +----------------+
> | rpad(hi, 5, ) |
> +----------------+
> | hi |
> +----------------+
> {code}
> It should return NULL as per definition.
>
> Hive behavior is correct as per definition it returns NULL when pad is empty String
> INFO : Concurrency mode is disabled, not creating a lock manager
> {code}
> +-------+
> | _c0 |
> +-------+
> | NULL |
> +-------+
> {code}
>
>
>
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