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Posted to issues@flink.apache.org by "Dian Fu (Jira)" <ji...@apache.org> on 2020/12/10 05:25:00 UTC
[jira] [Closed] (FLINK-20483) Support Pandas UDF for Map Operation
in Python Table API
[ https://issues.apache.org/jira/browse/FLINK-20483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dian Fu closed FLINK-20483.
---------------------------
Resolution: Fixed
Merged to master via a67a20d51b73ecfa917a581a8b3c096d8908964a
> Support Pandas UDF for Map Operation in Python Table API
> --------------------------------------------------------
>
> Key: FLINK-20483
> URL: https://issues.apache.org/jira/browse/FLINK-20483
> 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 Pandas UDF for Map Operation in Python Table API
> The usage:
> {code:java}
> t = ... # type: Table, table schema: [a: String, b: Int, c: Int]
> # map Pandas UDF
> import pandas
> pandas_map_func = udf(lambda x, y: pd.concat([x, y], axis=1),
> result_type=DataTypes.ROW([DataTypes.FIELD("a",DataTypes.INT()),
> DataTypes.FIELD("b", DataTypes.INT())]))
> t.map(pandas_map_func(b, c))
> {code}
>
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