Dandandan opened a new pull request #9068:
URL: https://github.com/apache/arrow/pull/9068
Uses lexical_core to speed up num to string casts.
```
cast i64 to string 512 time: [22.209 us 22.462 us 22.885 us]
change: [-38.438% -37.979% -37.154%] (p = 0.00 <
0.05)
Performance has improved.
Found 14 outliers among 100 measurements (14.00%)
11 (11.00%) low mild
3 (3.00%) high severe
Benchmarking cast f32 to string 512: Collecting 100 samples in estimated
5.0698
cast f32 to string 512 time: [25.587 us 25.692 us 25.786 us]
change: [-62.364% -62.215% -62.076%] (p = 0.00 <
0.05)
Performance has improved.
Found 7 outliers among 100 measurements (7.00%)
1 (1.00%) low severe
1 (1.00%) low mild
4 (4.00%) high mild
1 (1.00%) high severe
```
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