Add combine_chunks option to Python Arrow export

[robert3005]

Pyarrow export can combine chunks on rust side instead of exporting them as pa.chunked_array

[codspeed]

Merging this PR will regress 10 benchmarks

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚡ 14 improved benchmarks
❌ 10 regressed benchmarks
✅ 2081 untouched benchmarks
⏩ 503 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	filter_powerlaw_by_random[250000]	131.8 µs	169.2 µs	-22.11%
❌	Simulation	take_filter_primitive_nullable_slice_mask_random_indices[4096, 1000]	96.8 µs	123.3 µs	-21.47%
❌	Simulation	take_filter_primitive_nullable_slice_mask_random_indices[16384, 1000]	115.4 µs	145.6 µs	-20.74%
❌	Simulation	take_filter_list_slice_mask_sequential_indices[768, 50]	128.5 µs	150.8 µs	-14.81%
❌	Simulation	take_filter_list_slice_mask_sequential_indices[256, 50]	129.9 µs	151 µs	-13.95%
❌	Simulation	filter_powerlaw_by_mostly_false[10000]	29.3 µs	33 µs	-11.21%
❌	Simulation	filter_powerlaw_by_random[10000]	30.2 µs	33.9 µs	-11.11%
❌	Simulation	filter_random_by_mostly_false[10000]	29.4 µs	33 µs	-10.9%
❌	Simulation	filter_random_by_random[10000]	30.3 µs	33.9 µs	-10.48%
❌	Simulation	take_filter_primitive_slice_mask_sequential_indices[16384, 1000]	53.1 µs	59 µs	-10%
⚡	Simulation	density_sweep_single_slice[0.9999]	85 µs	24 µs	×3.5
⚡	Simulation	density_sweep_single_slice[0.999]	84.7 µs	24 µs	×3.5
⚡	Simulation	density_sweep_single_slice[0.95]	82.8 µs	24 µs	×3.4
⚡	Simulation	density_sweep_single_slice[0.99]	82.6 µs	24 µs	×3.4
⚡	Simulation	density_sweep_single_slice[0.5]	64.6 µs	24.1 µs	×2.7
⚡	Simulation	density_sweep_single_slice[0.9]	49.4 µs	24.1 µs	×2
⚡	Simulation	density_sweep_single_slice[0.1]	48.5 µs	24.1 µs	×2
⚡	Simulation	density_sweep_single_slice[0.05]	46.7 µs	24.1 µs	+93.91%
⚡	Simulation	density_sweep_single_slice[0.01]	41.5 µs	24.1 µs	+72.4%
⚡	Simulation	density_sweep_random[0.02]	89.3 µs	64.7 µs	+38.01%
...	...	...	...	...	...

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Tip

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_{Comparing claude/loving-wozniak-kwa7dw (00b1342) with develop (8ff4b4a)²}

Footnotes

1. 503 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. ↩

2. No successful run was found on develop (23a59e3) during the generation of this report, so 8ff4b4a was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩