MaxGekk opened a new pull request #26327: [WIP][SPARK-29669][SQL] Refactor IntervalUtils.fromDayTimeString() URL: https://github.com/apache/spark/pull/26327 ### What changes were proposed in this pull request? In the PR, I propose to refactor code related to the `IntervalUtils.fromDayTimeString()` method by: - making it more generic and independent from the requested range of interval units - introducing enumeration for unit names. This should allow to avoid typos in unit names. - extracting unit value properties from `fromDayTimeString()` like min/max values and a function for converting parsed values to microseconds using exact math methods. **This PR includes code from** https://github.com/apache/spark/pull/26313 ### Why are the changes needed? - To improve maintainability of `fromDayTimeString()` and related code in `IntervalUtils` - Avoid adhoc code ### Does this PR introduce any user-facing change? No ### How was this patch tested? By existing test in `IntervalUtilsSuite` and `DDLParserSuite`.
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