Github user HyukjinKwon commented on the pull request:
https://github.com/apache/spark/pull/8718#issuecomment-140368436
I think in that cast it does not create any condition as `double -> int ->
double` means, the field type is int and the given value type is double. Losing
precision during this convert means the given value cannot be converted to the
field type. (I might misunderstood your comment). I just tested and added some
more test codes. Could you give me the case you think?
I tested and added some more test codes for other type conversions. Could
you give me a specific case?
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