dawidwys commented on pull request #11951:
URL: https://github.com/apache/flink/pull/11951#issuecomment-623366784
Can not tell for sure as this code is quite old (It was ported in 1.9 from
`TableEnvironment.scala`). It worked as you are describing that you could/can
not use the `rowtime` in by position reference mode.
In my opinion it does make sense it is not possible to use it in the by
position mode. Because what does the `a` in `$("a").rowtime().as("rowtime")`
actually means in that case? I also find the syntax with `proctime` a bit
confusing (I mentioned in the ML thread that I don't like a few aspects of the
method). In proctime the original field is also ignored which is weird.
Nevertheless I would not change it now.
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