alamb commented on PR #14299:
URL: https://github.com/apache/datafusion/pull/14299#issuecomment-2614600265
I ran the newly added `array_agg` benchmark and got some pretty serious
performance improvements:
```
group
improve-performance-for-array-agg-merge-batch main
-----
--------------------------------------------- ----
array_agg i64 merge_batch all nulls, 100% of nulls point to a zero length
array 1.00 87.3±0.09ns ? ?/sec 225.81 19.7±0.02µs
? ?/sec
array_agg i64 merge_batch all nulls, 90% of nulls point to a zero length
array 1.00 86.3±0.07ns ? ?/sec 228.62
19.7±0.10µs ? ?/sec
```
I am not sure why all the runs aren't listed. I am looking into that
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