0a03839366
### What changes were proposed in this pull request? Move method add/subtract/negate from CalendarInterval to IntervalUtils ### Why are the changes needed? https://github.com/apache/spark/pull/26410#discussion_r343125468 suggested here ### Does this PR introduce any user-facing change? no ### How was this patch tested? add uts and move some Closes #26423 from yaooqinn/SPARK-29787. Authored-by: Kent Yao <yaooqinn@hotmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com> |
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