Github user httfighter commented on the issue:
https://github.com/apache/spark/pull/19380
I understand everyone's worries.But i hava few thoughts.
Firstly, the native unix_timestamp itself supports the "yyyy-MM-dd
HH:mm:ss.SSS" form of the date, but the result is lost in milliseconds when i
use it. Obviously, it's a bug. It will give users the wrong results
I think this should be fixed.
Secondly, unix_timestamp, from_unixtime and to_unix_timestamp all have the
similar bug, but related methods only these three. I think the data type of
unix time of the three methods should be defined as DoubleTypeï¼not for
LongType. Or in milliseconds which will bring more problems.
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