Dandandan opened a new pull request, #9294:
URL: https://github.com/apache/arrow-rs/pull/9294
# Which issue does this PR close?
- Closes #NNN.
# Rationale for this change
Speeds up `from_iter`.
This speeds up creation for statistics if all values are present (common
case):
```
Extract row group statistics for Int64/extract_statistics/Int64
time: [542.02 ns 543.41 ns 544.95 ns]
change: [−23.003% −22.574% −22.209%] (p = 0.00 <
0.05)
Performance has improved.
Found 7 outliers among 100 measurements (7.00%)
7 (7.00%) high mild
Extract data page statistics for Int64/extract_statistics/Int64
time: [8.9806 µs 8.9958 µs 9.0144 µs]
change: [−22.738% −21.961% −21.445%] (p = 0.00 <
0.05)
Performance has improved.
Found 9 outliers among 100 measurements (9.00%)
6 (6.00%) high mild
3 (3.00%) high severe
Extract row group statistics for UInt64/extract_statistics/UInt64
time: [523.80 ns 524.80 ns 526.02 ns]
change: [−25.064% −23.607% −22.464%] (p = 0.00 <
0.05)
Performance has improved.
Found 4 outliers among 100 measurements (4.00%)
2 (2.00%) high mild
2 (2.00%) high severe
```
# What changes are included in this PR?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
