fixed https://issues.apache.org/jira/browse/HIVE-10178
https://reviews.apache.org/r/32715/diff/# On Tue, Mar 31, 2015 at 11:27 PM, Alexander Pivovarov <apivova...@gmail.com> wrote: > correction for the first example > select cast(cast('1966-01-01 00:00:01' as timestamp) as date); > 1966-01-02 > > > On Tue, Mar 31, 2015 at 11:26 PM, Alexander Pivovarov < > apivova...@gmail.com> wrote: > >> 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 >> >> >> >> >> >> >
