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Posted to github@arrow.apache.org by "tustvold (via GitHub)" <gi...@apache.org> on 2023/04/01 15:57:42 UTC

[GitHub] [arrow-rs] tustvold commented on issue #3998: Support casting to/from Interval and Duration

tustvold commented on issue #3998:
URL: https://github.com/apache/arrow-rs/issues/3998#issuecomment-1493016667

   > as they are lossless
   
   TBC, the duration should be converted into the nanoseconds portion of `MonthDayNano`, returning an error or null (depending on CastOptions::safe) in the event of overflow. 
   
   As a result of daylight savings time, it would be incorrect to assume a day has 24 hours.
   
   > I am not sure what other, if any, casts should be supported
   
   Truncating casts to `MonthDayTime` might also be worthwhile
   


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