Omega359 opened a new issue, #15213:
URL: https://github.com/apache/datafusion/issues/15213
### Describe the bug
```
Benchmarking custom-measurement-time/distinct_group_by_u64_narrow_limit_10:
Warming up for 3.0000 s
Warning: Unable to complete 100 samples in 40.0s. You may wish to increase
target time to 43.4s, enable flat sampling, or reduce sample count to 60.
custom-measurement-time/distinct_group_by_u64_narrow_limit_10
time: [8.4231 ms 8.4443 ms 8.4657 ms]
change: [-20.783% -17.184% -13.756%] (p = 0.00 <
0.05)
Performance has improved.
Found 4 outliers among 100 measurements (4.00%)
1 (1.00%) low mild
3 (3.00%) high mild
custom-measurement-time/distinct_group_by_u64_narrow_limit_100
time: [39.834 ms 40.002 ms 40.178 ms]
change: [-40.712% -35.158% -29.146%] (p = 0.00 <
0.05)
Performance has improved.
Found 3 outliers among 100 measurements (3.00%)
3 (3.00%) high mild
custom-measurement-time/distinct_group_by_u64_narrow_limit_1000
time: [40.009 ms 40.269 ms 40.549 ms]
change: [-32.039% -28.795% -25.608%] (p = 0.00 <
0.05)
Performance has improved.
Found 9 outliers among 100 measurements (9.00%)
8 (8.00%) high mild
1 (1.00%) high severe
custom-measurement-time/distinct_group_by_u64_narrow_limit_10000
time: [39.870 ms 40.048 ms 40.237 ms]
change: [-17.900% -13.292% -8.8751%] (p = 0.00 <
0.05)
Performance has improved.
Found 3 outliers among 100 measurements (3.00%)
3 (3.00%) high mild
custom-measurement-time/group_by_multiple_columns_limit_10
time: [37.690 ms 37.762 ms 37.837 ms]
change: [-1.5462% -1.1394% -0.7797%] (p = 0.00 <
0.05)
Change within noise threshold.
Found 5 outliers among 100 measurements (5.00%)
5 (5.00%) high mild
Benchmarking distinct query with 100 partitions and 100000 samples per
partition with limit 10: Warming up for 3.0000 s
thread 'tokio-runtime-worker' panicked at
datafusion/physical-plan/src/repartition/mod.rs:618:22:
partition not used yet
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```
### To Reproduce
checkout main, run ` cargo bench -p datafusion --bench distinct_query_sql`
### Expected behavior
benchmark runs to completion
### Additional context
_No response_
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