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VarBinViewBuilder: support decoding Dict and Sparse arrays directly into the builder - #9236

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robert3005 merged 5 commits into
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rk/varbinview-gather-scatter
Aug 7, 2026
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VarBinViewBuilder: support decoding Dict and Sparse arrays directly into the builder#9236
robert3005 merged 5 commits into
developfrom
rk/varbinview-gather-scatter

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f442d48
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CodSpeed HQ / CodSpeed Performance Analysis failed Aug 7, 2026 in 0s

3 benchmarks regressed

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 21 improved benchmarks
❌ 3 regressed benchmarks
✅ 1910 untouched benchmarks
⏩ 51 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation fsst_decompress_string 7.2 ms 8.3 ms -12.88%
Simulation decompress_fsst[(10000, 4, 4)] 793.9 µs 899.8 µs -11.76%
Simulation decompress_fsst[(10000, 4, 8)] 815.4 µs 920.9 µs -11.46%
Simulation decompress[u64, (1000, 16)] 134.7 µs 73.9 µs +82.1%
Simulation chunked_varbin_to_varbinview_builder[(10, 100)] 516.5 µs 331.5 µs +55.8%
Simulation chunked_varbin_to_varbinview_builder[(500, 2)] 167.6 µs 116.8 µs +43.53%
Simulation chunked_varbin_into_canonical[(10, 100)] 696.3 µs 489.5 µs +42.25%
Simulation chunked_varbin_opt_to_varbinview_builder[(10, 100)] 790.9 µs 568.7 µs +39.07%
Simulation chunked_varbin_into_canonical[(500, 2)] 178.4 µs 128.6 µs +38.71%
Simulation compact_sliced[(16384, 10)] 2 ms 1.4 ms +37.15%
Simulation chunked_varbin_opt_to_varbinview_builder[(500, 2)] 166.2 µs 121.4 µs +36.83%
Simulation compact_sliced[(4096, 10)] 517.9 µs 385.7 µs +34.29%
Simulation chunked_canonicalize_into[(1000, 50, 8, 4)] 15.4 ms 12.8 ms +20.33%
Simulation chunked_canonicalize_into[(1000, 50, 8, 16)] 16.5 ms 13.9 ms +18.51%
Simulation chunked_into_canonical[(1000, 50, 8, 4)] 17.7 ms 15.1 ms +16.86%
Simulation chunked_into_canonical[(1000, 50, 8, 16)] 18.8 ms 16.2 ms +16.18%
Simulation chunked_into_canonical[(1000, 50, 8, 64)] 20.4 ms 17.7 ms +15.15%
Simulation chunked_canonicalize_into[(1000, 50, 8, 64)] 17.8 ms 15.5 ms +14.73%
Simulation take[small_m/shuffled/primitive/nonnull/chunks=16384/indices=16] 1.3 ms 1.1 ms +13%
Simulation take[small_m/shuffled/primitive/nonnull/chunks=16384/indices=256] 3.7 ms 3.4 ms +11.54%
... ... ... ... ... ...

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

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Comparing rk/varbinview-gather-scatter (f442d48) with develop (ad5de22)2

Open in CodSpeed

Footnotes

  1. 51 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 (39fde8c) during the generation of this report, so ad5de22 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.