[GitHub] flink issue #4102: [FLINK-6886][table]Fix Timestamp field can not be selecte...

[wuchong <gi...@git.apache.org>]

Github user wuchong commented on the issue:

    https://github.com/apache/flink/pull/4102
  
    I think the root cause is that TUMBLE_START inherits the wrong type (`TimeIndicatorRelDataType`) from rowtime column.  So maybe a better solution is to re-create a `RelDataType` from `optimizedPlan`'s  rowType and `orignalPlan`'s rowType and pass into the `getConversionMapper` method. I create a simple commit for this: https://github.com/wuchong/flink/commit/82c17ab45699f5f9beb925b156e760ebdeff79fb   What do you think? @sunjincheng121  @fhueske 
    
    BTW, do we really need so many IT cases for this ? 


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