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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2015/05/13 07:03:59 UTC

[jira] [Reopened] (SPARK-7321) Add Column expression for conditional statements (if, case)

     [ https://issues.apache.org/jira/browse/SPARK-7321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Reynold Xin reopened SPARK-7321:
--------------------------------

> Add Column expression for conditional statements (if, case)
> -----------------------------------------------------------
>
>                 Key: SPARK-7321
>                 URL: https://issues.apache.org/jira/browse/SPARK-7321
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Reynold Xin
>            Assignee: Chen Song
>            Priority: Critical
>             Fix For: 1.4.0
>
>
> A good reference implementation is http://www.jooq.org/doc/3.6/manual-single-page/#case-expressions
> As an example in Python:
> {code}
> when(df.age == 1, "one").when(df.age == 2, "two").otherwise("unknown")
> {code}



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