[jira] [Commented] (SPARK-35005) Improve error msg if UTF8String concatWs length overflow

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-35005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17317855#comment-17317855 ] 

Apache Spark commented on SPARK-35005:
--------------------------------------

User 'ulysses-you' has created a pull request for this issue:
https://github.com/apache/spark/pull/32106

> Improve error msg if UTF8String concatWs length overflow
> --------------------------------------------------------
>
>                 Key: SPARK-35005
>                 URL: https://issues.apache.org/jira/browse/SPARK-35005
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.2.0
>            Reporter: ulysses you
>            Priority: Minor
>
> We encounter a very extreme case with expression `concat_ws`, and the error msg is
> {code:java}
> Caused by: java.lang.NegativeArraySizeException
> 	at org.apache.spark.unsafe.types.UTF8String.concatWs
> {code}
> Seems the `UTF8String.concat` has already done the length check, so it's better to add in `concatWs`.



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