Dian Fu created FLINK-21223:
-------------------------------
Summary: Support to specify the input/output types of Python UDFs
via string
Key: FLINK-21223
URL: https://issues.apache.org/jira/browse/FLINK-21223
Project: Flink
Issue Type: Improvement
Components: API / Python
Reporter: Dian Fu
Currently, users need to specify the input/output types as following:
{code}
{{@udf(result_type=DataTypes.BIGINT())
def add(i, j):
return i + j
}}{code}
[FLIP-65|https://cwiki.apache.org/confluence/display/FLINK/FLIP-65%3A+New+type+inference+for+Table+API+UDFs]
makes it possible to support syntaxes as following:
{code}
{{@udf(result_type="BIGINT")
def add(i, j):
return i + j
}}{code}
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