Juntao Hu created FLINK-29648:
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Summary: "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
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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