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Posted to issues@spark.apache.org by "Gengliang Wang (JIRA)" <ji...@apache.org> on 2019/07/24 16:33:00 UTC
[jira] [Commented] (SPARK-28503) Return null result on cast an
out-of-range value to a numeric type
[ https://issues.apache.org/jira/browse/SPARK-28503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16891982#comment-16891982 ]
Gengliang Wang commented on SPARK-28503:
----------------------------------------
I am working on this.
> Return null result on cast an out-of-range value to a numeric type
> ------------------------------------------------------------------
>
> Key: SPARK-28503
> URL: https://issues.apache.org/jira/browse/SPARK-28503
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Gengliang Wang
> Priority: Major
>
> Currently, when we convert an out-of-range value to a numeric type, the value is unexpected
> scala> spark.sql("select cast(327689 as short)").show()
> +------------------------+
> |CAST(327689 AS SMALLINT)|
> +------------------------+
> | 9|
> +------------------------+
> The result is actually 327689.toShort (327689 & 0xffff).
> For such cases, I think we should return null.
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