[VL] support percentile/percentile_approx offload
- Dominant language
- Scala
- Stars
- 1.6k
- Forks
- 657
- Avg merge
- 2d 14h
- Merged PRs (30d)
- 80
Description
### Description
One main issue of performance regression compared to Vanilla Spark
Like:
```
ObjectHashAggregate(
keys=[h#216:string,
e#219:string,
p#212:string,
p#190:string,
y#191:string,
r#192:string,
e#193:string],
functions=[count(1), percentile(s#199L, 0.5, 1, 0, 0),
percentile(s#199L, 0.9, 1, 0, 0),
percentile_approx(e#201, 0.5, 10000, 0, 0),
percentile_approx(e#201, 0.9, 10000, 0, 0),
percentile(s#202L, 0.1, 1, 0, 0),
percentile(s#202L, 0.5, 1, 0, 0)])
```
Contributor guide
Assessment
This issue has not been assessed yet.