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https://issues.apache.org/jira/browse/SPARK-2179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14081903#comment-14081903
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Apache Spark commented on SPARK-2179:
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User 'yhuai' has created a pull request for this issue:
https://github.com/apache/spark/pull/1712
> Public API for DataTypes and Schema
> -----------------------------------
>
> Key: SPARK-2179
> URL: https://issues.apache.org/jira/browse/SPARK-2179
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Michael Armbrust
> Assignee: Yin Huai
> Priority: Critical
> Fix For: 1.1.0
>
>
> We want something like the following:
> * Expose DataType in the SQL package and lock down all the internal details
> (TypeTags, etc)
> * Programatic API for viewing the schema of an RDD as a StructType
> * Method that creates a schema RDD given (RDD[A], StructType, A => Row)
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