Signed-off-by: Gang Wu <[email protected]>

…get evaluated correctly

### What changes were proposed in this pull request?

When all values in column `col_0` are `NULL`s within a row group, and we attempt to apply the predicate pushdown `col_0 <=> 'xxx'`, the `evaluatePredicateProto` function returns `TruthValue.NULL`. In this case, we can directly determine the result based on the literal value: if the literal is `NULL`, return `TruthValue.YES`, otherwise, return `TruthValue.NO`.

### Why are the changes needed?

See [SPARK-52032](https://issues.apache.org/jira/projects/SPARK/issues/SPARK-52032).
When we pushdown the NULL_SAFE_EQUALS predicate, all values of the column are `NULL`. The `evaluatePredicateProto` returns `TruthValue.NULL`, whose `isNeeded` returns false so that the whole row group is skipped by `SargApplier.pickRowGroups`, which actually is incorrect.

### How was this patch tested?

There already exists unit test -- `TestOrcTimezonePPD.testTimestampAllNulls`

### Was this patch authored or co-authored using generative AI tooling?

Co-authored using generative AI tooling.

Closes #2223 from jayhan94/fix_null_safe_equals_pred_push.

Authored-by: Jay Han <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>
(cherry picked from commit 467a293)
Signed-off-by: Dongjoon Hyun <[email protected]>

### What changes were proposed in this pull request?

This PR aims to remove unused test resource `log4j.properties` files.

### Why are the changes needed?

Aapche ORC 1.7.5 switched the deprecated `slf4j-log4j12` to `slf4j-simple` via ORC-1182. So, these test resources are unused in ORC 1.7.6+.

```
$ find . -name log4j.properties
./java/bench/core/src/resources/log4j.properties
./java/tools/src/test/resources/log4j.properties
./java/core/src/test/resources/log4j.properties
./java/shims/src/test/resources/log4j.properties
./java/mapreduce/src/test/resources/log4j.properties
```

### How was this patch tested?

Pass the CIs and manual review because this doesn't affect ORC code.

### Was this patch authored or co-authored using generative AI tooling?

No.

Closes #2253 from dongjoon-hyun/ORC-1909.

Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>
(cherry picked from commit 4431151)
Signed-off-by: Dongjoon Hyun <[email protected]>

This PR aims to remove `Windows 2019` GitHub Action job.

Note that ORC-1924 is created in order to recover Windows test coverage later.
- #2273

`Windows 2019` is deprecated already and will be removed soon.
- actions/runner-images#12045

Manual review because this is a removal of CI.

No.

Closes #2274 from dongjoon-hyun/ORC-1923.

Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>
(cherry picked from commit 7e452b9)
Signed-off-by: Dongjoon Hyun <[email protected]>

Signed-off-by: Dongjoon Hyun <[email protected]>