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### What changes were proposed in this pull request? Handle `YearMonthIntervalType` and `DayTimeIntervalType` in the `sql()` and `toString()` method of `Literal`, and format the ANSI interval in the ANSI style. ### Why are the changes needed? To improve readability and UX with Spark SQL. For example, a test output before the changes: ``` -- !query select timestamp'2011-11-11 11:11:11' - interval '2' day -- !query schema struct<TIMESTAMP '2011-11-11 11:11:11' - 172800000000:timestamp> -- !query output 2011-11-09 11:11:11 ``` ### Does this PR introduce _any_ user-facing change? Should not since the new intervals haven't been released yet. ### How was this patch tested? By running new tests: ``` $ ./build/sbt "test:testOnly *LiteralExpressionSuite" ``` Closes #32196 from MaxGekk/literal-ansi-interval-sql. Authored-by: Max Gekk <max.gekk@gmail.com> Signed-off-by: Max Gekk <max.gekk@gmail.com> |
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