Hi Everyone
I noticed interesting behaviour for timestamp to date hive type conversion
for negative unix time.
For example:
select cast(cast('1966-01-01 00:00:01' as timestamp) as date);
1966-02-02
Should it work this way?
Another example
select last_day(cast('1966-01-31 00:00:01' as timestamp));
OK
1966-02-28
more details:
Date: 1966-01-01 00:00:01
unix time UTC: -126230399
daysSinceEpoch=−126230399000 / 86400000 = -1460.999988
int daysSinceEpoch = -1460
DateWritable having daysSinceEpoch=-1460 is 1966-01-02
