Re: Flink SQL does not support rename after cast type

Hi Hequn, Thanks a lot for your anwswer! The question is clear now. Best Henry > 在 2018年8月14日，下午1:24，Hequn Cheng > 写道： > > Hi Henry, > > Flink does support rename column after casting. > > The exception is not caused by cast. It is caused by mixing of

Re: Flink SQL does not support rename after cast type

Hi Henry, Flink does support rename column after casting. The exception is not caused by cast. It is caused by mixing of types, for example, the query > "CASE 1 WHEN 1 THEN *true* WHEN 2 THEN *'string'* ELSE NULL END" will throw the same exception since type of true and 'string' are not same.

Flink SQL does not support rename after cast type

Hi All, I am working on a project based on Flink SQL, but found that I can`t rename column after casting, the code is as below: cast(json_type as INTEGER) as xxx And the following exception is reported: org.apache.calcite.runtime.CalciteContextException: