MaxGekk commented on issue #24755: [SPARK-27898][SQL] Support 4 date operators(date + integer, integer + date, date - integer and date - date) URL: https://github.com/apache/spark/pull/24755#issuecomment-497737947 According to SQL standard, `date '2001-10-01' - date '2001-09-28'` must return the `Interval` type instead of `IntegerType` as `DateDiff` does.
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