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From "Hyukjin Kwon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-19515) `flat` property in `ExpressionEncoder` needs documentation
Date Thu, 16 Mar 2017 13:14:41 GMT

     [ https://issues.apache.org/jira/browse/SPARK-19515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hyukjin Kwon updated SPARK-19515:
---------------------------------
    Priority: Trivial  (was: Minor)

> `flat` property in `ExpressionEncoder` needs documentation
> ----------------------------------------------------------
>
>                 Key: SPARK-19515
>                 URL: https://issues.apache.org/jira/browse/SPARK-19515
>             Project: Spark
>          Issue Type: Documentation
>          Components: Documentation
>    Affects Versions: 2.1.0
>            Reporter: Simeon H.K. Fitch
>            Priority: Trivial
>
> It would be helpful to understand the semantics of the `flat` property in `ExpressionEncoder`,
as this is the entry-point into implementing custom `Encoder`s for dataframes.
> [Source code location|https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/encoders/ExpressionEncoder.scala#L221]



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