[connortsui20]

Summary

• Tracking Issue: Epic: Extension Types #7683.

Extension comparisons could compare raw storage on the array path while scalar execution rejected the same operands. Applies one dtype requirement across comparison paths.

Changes

Checks logical dtypes at binding and before comparison fast paths or encoding kernels run. Regression tests cover batch, row, and constant execution, encoded timestamps, and DuckDB filters. DataFusion literal conversion is handled separately in #11067.

Formatting passes with CI's pinned nightly-2026-09-10 for vortex-datetime-parts and vortex-duckdb. Tests, Clippy, and benchmarks were not rerun locally after cleanup.

API Changes

Comparison operands must have matching logical dtypes, ignoring nullability. Comparisons between an extension and its storage dtype, or between different extension dtypes, now return an error. This includes timestamps with different units or time zones.

[codspeed]

Merging this PR will regress 6 benchmarks

1 warning

⚠️ Walltime results may be unreliable

Some benchmarks used the Walltime instrument outside CodSpeed Macro Runners, which can make the results inconsistent.

Learn more about Macro Runners

See affected benchmarks

⚡ 3 improved benchmarks
❌ 6 regressed benchmarks
✅ 2309 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	CPU Simulation	bench_compare_varbin[(50000, 2)]	132.1 µs	162.2 µs	-18.57%
❌	CPU Simulation	bench_compare_varbin[(50000, 64)]	133.9 µs	164.1 µs	-18.39%
❌	CPU Simulation	bench_compare_sliced_dict_varbinview[(1000, 10000)]	76.9 µs	89.7 µs	-14.25%
❌	CPU Simulation	bench_compare_sliced_dict_varbinview[(7500, 10000)]	198.6 µs	228.3 µs	-12.99%
❌	CPU Simulation	bench_compare_sliced_dict_varbinview[(10000, 10000)]	204.8 µs	234.6 µs	-12.7%
❌	Walltime	starts_with_avx2[8, VarBinView]	68.5 µs	76.3 µs	-10.23%
⚡	CPU Simulation	filter_powerlaw_by_random[10000]	684 ns	314.1 ns	×2.2
⚡	CPU Simulation	take_filter_primitive_small_uncached_random_mask_random_indices[4096, 10]	24 µs	20.6 µs	+16.46%
⚡	Walltime	starts_with_avx2[64, VarBin]	61 µs	53.5 µs	+14.15%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing ct/ext-types/comparison-consistency (db0b297) with develop (96fc43d)}