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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2020/06/28 04:36:00 UTC
[jira] [Assigned] (SPARK-32115) Incorrect results for SUBSTRING
when overflow
[ https://issues.apache.org/jira/browse/SPARK-32115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-32115:
------------------------------------
Assignee: (was: Apache Spark)
> Incorrect results for SUBSTRING when overflow
> ---------------------------------------------
>
> Key: SPARK-32115
> URL: https://issues.apache.org/jira/browse/SPARK-32115
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Yuanjian Li
> Priority: Major
>
> SQL query SELECT SUBSTRING("abc", -1207959552, -1207959552) incorrectly returns "abc" against expected output of "".
> This is a result of integer overflow in addition [https://github.com/apache/spark/blob/8c44d744631516a5cdaf63406e69a9dd11e5b878/common/unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java#L345]
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