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From "Hu Fuwang (Jira)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-28512) New optional mode: throw runtime exceptions on casting failures
Date Sat, 26 Oct 2019 15:19:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-28512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16960370#comment-16960370
] 

Hu Fuwang commented on SPARK-28512:
-----------------------------------

[~Gengliang.Wang] Is this already solved by [https://github.com/apache/spark/pull/25997] ?

> New optional mode: throw runtime exceptions on casting failures
> ---------------------------------------------------------------
>
>                 Key: SPARK-28512
>                 URL: https://issues.apache.org/jira/browse/SPARK-28512
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Gengliang Wang
>            Priority: Major
>
> In popular DBMS like MySQL/PostgreSQL/Oracle, runtime exceptions are thrown on casting,
e.g. cast('abc' as boolean) 
> While in Spark, the result is converted as null silently. It is by design since we don't
want a long-running job aborted by some casting failure. But there are scenarios that users
want to make sure all the data conversion are correct, like the way they use MySQL/PostgreSQL/Oracle.
> This one has a bigger scope than https://issues.apache.org/jira/browse/SPARK-28741



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