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https://issues.apache.org/jira/browse/SPARK-10495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14804761#comment-14804761
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Apache Spark commented on SPARK-10495:
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User 'yhuai' has created a pull request for this issue:
https://github.com/apache/spark/pull/8806
> For json data source, date values are saved as int strings
> ----------------------------------------------------------
>
> Key: SPARK-10495
> URL: https://issues.apache.org/jira/browse/SPARK-10495
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.5.0
> Reporter: Yin Huai
> Assignee: Yin Huai
> Priority: Blocker
>
> {code}
> val df = Seq((1, java.sql.Date.valueOf("1900-01-01"))).toDF("i", "j")
> df.write.format("json").save("/tmp/testJson")
> sc.textFile("/tmp/testJson").collect.foreach(println)
> {"i":1,"j":"-25567"}
> {code}
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