gengliangwang opened a new pull request #32843:
URL: https://github.com/apache/spark/pull/32843
### What changes were proposed in this pull request?
Add `TimestampWithoutTZType` to `DataTypeTestUtils.ordered`/`atomicTypes`,
and implement values generation of those types in
`LiteralGenerator`/`RandomDataGenerator`. In this way, the types will be tested
automatically in:
1. ArithmeticExpressionSuite:
- "function least"
- "function greatest"
2. PredicateSuite
- "BinaryComparison consistency check"
- "AND, OR, EqualTo, EqualNullSafe consistency check"
3. ConditionalExpressionSuite
- "if"
4. RandomDataGeneratorSuite
- "Basic types"
5. CastSuite
- "null cast"
- "up-cast"
- "SPARK-27671: cast from nested null type in struct"
6. OrderingSuite
- "GenerateOrdering with TimestampWithoutTZType"
7. PredicateSuite
- "IN with different types"
8. UnsafeRowSuite
- "calling get(ordinal, datatype) on null columns"
9. SortSuite
- "sorting on TimestampWithoutTZType ..."
### Why are the changes needed?
To improve test coverage.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
By running the affected test suites.
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