MaxGekk opened a new pull request #26177: [SPARK-29520][SS] Fix checks of negative intervals URL: https://github.com/apache/spark/pull/26177 ### What changes were proposed in this pull request? - Added `getDuration()` to calculate interval duration in specified time units assuming provided days per months - Added `isNegative()` which return `true` is the interval duration is less than 0 - Fix checking negative intervals by using `isNegative()` in structured streaming classes - Fix checking of `year-months` intervals ### Why are the changes needed? This fixes incorrect checking of negative intervals. An interval is negative when its duration is negative but not if interval's months **or** microseconds is negative. Also this fixes checking of `year-month` interval support because the `month` field could be negative. ### Does this PR introduce any user-facing change? Should not ### How was this patch tested? - Added tests for the `getDuration()` and `isNegative()` methods to `CalendarIntervalSuite` - By existing SS tests
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