### What changes were proposed in this pull request?
This PR changes the behavior of RangeExec with WholeStageCodegen disabled or falled back to change the number of partitions to zero when a range is empty.
In the current master, if WholeStageCodegen effects, the number of partitions of an empty range will be changed to zero.
```
spark.range(1, 1, 1, 1000).rdd.getNumPartitions
res0: Int = 0
```
But it doesn't if WholeStageCodegen is disabled or falled back.
```
spark.conf.set("spark.sql.codegen.wholeStage", false)
spark.range(1, 1, 1, 1000).rdd.getNumPartitions
res2: Int = 1000
```
### Why are the changes needed?
To archive better performance even though WholeStageCodegen disabled or falled back.
### Does this PR introduce _any_ user-facing change?
Yes. the number of partitions gotten with `getNumPartitions` for an empty range will be changed when WholeStageCodegen is disabled.
### How was this patch tested?
New test.
Closes#29681 from sarutak/zero-size-range.
Authored-by: Kousuke Saruta <sarutak@oss.nttdata.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
5f468cc21e