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https://issues.apache.org/jira/browse/SPARK-3713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-3713.
-------------------------------------
Resolution: Fixed
Fix Version/s: 1.2.0
Issue resolved by pull request 2563
[https://github.com/apache/spark/pull/2563]
> Use JSON to serialize DataType
> ------------------------------
>
> Key: SPARK-3713
> URL: https://issues.apache.org/jira/browse/SPARK-3713
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.1.0
> Reporter: Cheng Lian
> Assignee: Cheng Lian
> Fix For: 1.2.0
>
>
> Currently we are using compiler generated {{toString}} method for case
> classes to serialize {{DataType}} objects, which is dangerous and already
> introduced some bugs (e.g. SPARK-3421). Moreover, we also serialize schema in
> this format and write into generated Parquet metadata. Using JSON can fix all
> these known and potential issues.
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