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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/04/03 19:34:00 UTC
[GitHub] [spark] MaxGekk opened a new pull request #24287:
[WIP][SPARK-27357][SQL] Cast timestamps to/from dates independently from
time zones
MaxGekk opened a new pull request #24287: [WIP][SPARK-27357][SQL] Cast timestamps to/from dates independently from time zones
URL: https://github.com/apache/spark/pull/24287
## What changes were proposed in this pull request?
In the PR, I propose to make casting of `TIMESTAMP` to/from `DATE` independent from session local time zone (and system default time zone) because both types internally contains intervals since epoch (in `UTC`). In this way, they must be converted directly without any shifts.
## How was this patch tested?
By existing test suites like `CastSuite` and `DateTimeUtilsSuite`.
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