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https://issues.apache.org/jira/browse/SPARK-30000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16980087#comment-16980087
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Kent Yao commented on SPARK-30000:
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working on this.
> Trim the string when cast string type to decimals
> -------------------------------------------------
>
> Key: SPARK-30000
> URL: https://issues.apache.org/jira/browse/SPARK-30000
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Kent Yao
> Assignee: Kent Yao
> Priority: Major
> Fix For: 3.0.0
>
>
> https://bugs.openjdk.java.net/browse/JDK-8170259
> https://bugs.openjdk.java.net/browse/JDK-8170563
> When we cast string type to decimal type, we rely on java.math. BigDecimal.
> It can't accept leading and training spaces, as you can see in the above
> links. This behavior is not consistent with other numeric types now. we need
> to fix it and keep consistency.
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