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Posted to issues@flink.apache.org by "Dian Fu (Jira)" <ji...@apache.org> on 2020/12/09 09:32:00 UTC

[jira] [Closed] (FLINK-20482) Support General Python UDF for Map Operation in Python Table API

     [ https://issues.apache.org/jira/browse/FLINK-20482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dian Fu closed FLINK-20482.
---------------------------
    Resolution: Fixed

Merged to master via 2d0e7387176b00ad7f0ef70b0de985cea7911317

> Support General Python UDF for Map Operation in Python Table API
> ----------------------------------------------------------------
>
>                 Key: FLINK-20482
>                 URL: https://issues.apache.org/jira/browse/FLINK-20482
>             Project: Flink
>          Issue Type: Sub-task
>          Components: API / Python
>            Reporter: Huang Xingbo
>            Assignee: Huang Xingbo
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.13.0
>
>
> Support General Python UDF for Map Operation in Python Table API
> The usage:
> {code:java}
> t = ...  # type: Table, table schema: [a: String, b: Int, c: Int]
> # map General Python UDF
> map_func = udf(lambda x: Row(x + 1, x * x), 
>           result_type=DataTypes.ROW([DataTypes.FIELD("a", DataTypes.INT()),
>                                      DataTypes.FIELD("b", DataTypes.INT())]))
> t.map(map_func(t.b)).alias("a", "b")
> {code}



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