WeiZhong94 commented on issue #9865: [FLINK-14212][python] Support no-argument Python UDFs. URL: https://github.com/apache/flink/pull/9865#issuecomment-540423623 @JingsongLi I noticed that the "getScalarFunction" method in "ScalarSqlFunction" of blink planner was replaced by "makeFunction" method. I think using "getScalarFunction" to get the initial ScalarFunction object and check its language type makes more sense here so I re-add the method. Please take a look at this PR to make sure it does not cause any side effects to blink planner :).
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