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https://issues.apache.org/jira/browse/SPARK-5097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14279078#comment-14279078
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Reynold Xin commented on SPARK-5097:
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[~hkothari] that is correct. It will be trivially doable to select columns at
runtime.
For the 2nd one, not yet. That's a very good point. You can always do an extra
projection. We will try to add it, if not in the 1st iteration, then in the 2nd
iteration.
> Adding data frame APIs to SchemaRDD
> -----------------------------------
>
> Key: SPARK-5097
> URL: https://issues.apache.org/jira/browse/SPARK-5097
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Reynold Xin
> Priority: Critical
> Attachments: DesignDocAddingDataFrameAPIstoSchemaRDD.pdf
>
>
> SchemaRDD, through its DSL, already provides common data frame
> functionalities. However, the DSL was originally created for constructing
> test cases without much end-user usability and API stability consideration.
> This design doc proposes a set of API changes for Scala and Python to make
> the SchemaRDD DSL API more usable and stable.
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