Is your feature request related to a problem or challenge?
Apache Spark supports 2 ANSI interval types: DayTimeIntervalType and YearMonthIntervalType and many Spark functions (e.g. abs) take ANSI interval types.
It would be great to support them in SLT tests.
Describe the solution you'd like
Able to test SELECT abs(INTERVAL -'1-1' YEAR TO MONTH); in SLT.
Describe alternatives you've considered
No response
Additional context
No response