[jira] [Updated] (FLINK-29648) "LocalDateTime not supported" error when retrieving Java TypeInformation from PyFlink

["Juntao Hu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-29648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Juntao Hu updated FLINK-29648:
------------------------------
    Priority: Critical  (was: Blocker)

> "LocalDateTime not supported" error when retrieving Java TypeInformation from PyFlink
> -------------------------------------------------------------------------------------
>
>                 Key: FLINK-29648
>                 URL: https://issues.apache.org/jira/browse/FLINK-29648
>             Project: Flink
>          Issue Type: Bug
>          Components: API / Python
>    Affects Versions: 1.16.0
>            Reporter: Juntao Hu
>            Priority: Critical
>             Fix For: 1.16.0
>
>
> The following code raises "TypeError: The java type info: LocalDateTime is not supported in PyFlink currently.":
> {code:java}
> t_env.to_data_stream(t).key_by(...){code}
> However, this works:
> {code:java}
> t_env.to_data_stream(t).map(lambda r: r).key_by(...){code}
> Although we add Python coders for LocalTimeTypeInfo in 1.16, there's no corresponding typeinfo at Python side. So it works when a user immediately does processing after to_data_stream since date/time data has already been converted to Python object, but when key_by tries to retrieve typeinfo from Java TypeInformation, it fails.



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