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https://issues.apache.org/jira/browse/SPARK-24876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16550763#comment-16550763
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Apache Spark commented on SPARK-24876:
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User 'gengliangwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/21829
> Simplify schema serialization
> -----------------------------
>
> Key: SPARK-24876
> URL: https://issues.apache.org/jira/browse/SPARK-24876
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Gengliang Wang
> Priority: Major
>
> Previously in the refactoring of Avro Serializer and Deserializer, a new
> class SerializableSchema is created for serializing the avro schema.
> [https://github.com/apache/spark/commit/96030876383822645a5b35698ee407a8d4eb76af#diff-7ca6378b3afe21467a274983522ec48eR18]
>
> On second thought, we can use `toString` method for serialization. After
> that, parse the JSON format schema on executor. This makes the code much
> simpler.
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