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Support out of order grouped aggregate accumulation - #8379

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ngates/grouped-aggregate
Draft

Support out of order grouped aggregate accumulation#8379
gatesn wants to merge 12 commits into
developfrom
ngates/grouped-aggregate

Merge remote-tracking branch 'origin/develop' into ngates/grouped-agg…

b27ec6a
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CodSpeed HQ / CodSpeed Performance Analysis failed Aug 8, 2026 in 0s

Performance Regression: -57.86%

⚡ 3 improved benchmarks
❌ 12 regressed benchmarks
✅ 1925 untouched benchmarks
🆕 12 new benchmarks
⏩ 89 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation fsl_sum_medium 1.2 ms 12.5 ms -90.68%
Simulation fsl_sum_large 96.5 ms 963 ms -89.98%
Simulation listview_sum_medium 1.6 ms 13.1 ms -87.83%
Simulation list_sum_medium 2 ms 13.5 ms -85.41%
Simulation listview_sum_large 150.5 ms 1,022.1 ms -85.27%
Simulation list_sum_large 185.3 ms 1,056.4 ms -82.46%
Simulation list_sum_nullable_elements_large 464.4 ms 1,340.6 ms -65.36%
Simulation list_sum_nullable_elements_medium 4.7 ms 12.4 ms -61.91%
Simulation fsl_sum_small 211.4 µs 320.4 µs -34.01%
Simulation listview_sum_small 222.6 µs 334.4 µs -33.43%
Simulation list_sum_small 314.1 µs 420.9 µs -25.37%
Simulation sum_i32_nullable_all_valid 183.7 µs 204.9 µs -10.35%
Simulation count_varbinview 176.3 µs 40.5 µs ×4.3
Simulation varbinview_large 1,283.4 µs 557.2 µs ×2.3
Simulation count_i32_clustered_nulls 103.3 µs 73.4 µs +40.7%
🆕 Simulation count_i32_cardinality[(128, Clustered)] N/A 541.8 µs N/A
🆕 Simulation count_i32_cardinality[(128, Shuffled)] N/A 606.1 µs N/A
🆕 Simulation count_i32_cardinality[(4096, Clustered)] N/A 673.9 µs N/A
🆕 Simulation count_i32_cardinality[(4096, Shuffled)] N/A 886.2 µs N/A
🆕 Simulation count_i32_cardinality[(65536, Clustered)] N/A 2.3 ms N/A
... ... ... ... ... ...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

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Comparing ngates/grouped-aggregate (b27ec6a) with develop (5794e7d)

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Footnotes

  1. 89 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports.