Major Description
The precision of java.time.Duration is nanosecond, but when it is used as DayTimeIntervalType in Spark, it is microsecond.
At present, the DayTimeIntervalType data generated in the implementation of RandomDataGenerator is accurate to nanosecond, which will cause the DayTimeIntervalType to be converted to long, and then back to DayTimeIntervalType to lose the accuracy, which will cause the test to fail. For example: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/137390/testReport/org.apache.spark.sql.hive.execution/HashAggregationQueryWithControlledFallbackSuite/udaf_with_all_data_types/
