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Posted to issues@beam.apache.org by "Yueyang Qiu (JIRA)" <ji...@apache.org> on 2019/05/16 16:26:00 UTC

[jira] [Assigned] (BEAM-7333) Select need the ability to rename fields

     [ https://issues.apache.org/jira/browse/BEAM-7333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yueyang Qiu reassigned BEAM-7333:
---------------------------------

    Assignee: Yueyang Qiu

> Select need the ability to rename fields
> ----------------------------------------
>
>                 Key: BEAM-7333
>                 URL: https://issues.apache.org/jira/browse/BEAM-7333
>             Project: Beam
>          Issue Type: Sub-task
>          Components: sdk-java-core
>            Reporter: Reuven Lax
>            Assignee: Yueyang Qiu
>            Priority: Major
>
> There needs to be a way to rename fields in Select - i.e. Select("field1").as("field2").
> While in many cases the RenameFields transform could be used, that doesn't help when a Select would return conflicting names - i.e. Select("a.c", "b.c"). In this case the Select transform would fail, because the output schema would have two fields of the same name. 



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