refactor(vortex-spatial): execute distance with RowFn

[HarukiMoriarty]

Summary

Move spatial distance execution onto the generic null-aware RowFn path and keep row-operation fallibility independent from input-decoder fallibility.

Changes

• add a GeometryRow input element that decodes native geometry columns into geo-types geometries
• preserve null-row safety by filtering invalid rows before geometry decoding and scattering placeholders back into the row-aligned column
• implement SpatialDistance through RowFn dispatch and mark its distance operation infallible
• keep GeometryRow decoding fallible and remove the RowFn contract check that incorrectly coupled the two flags
• document the distinction between RowFn::INFALLIBLE and InputElement::DECODE_INFALLIBLE
• cover nullable MultiPolygon distance execution with a regression test

Testing

• cargo +nightly fmt --all
• cargo nextest run -p vortex-array scalar_fn::unstable::row (33 passed)
• cargo nextest run -p vortex-spatial (248 passed)
• cargo clippy -p vortex-array -p vortex-spatial --all-targets --all-features
• cargo test --doc -p vortex-array (94 passed)

[codspeed-hq]

Merging this PR will degrade performance by 19.15%

⚠️ 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.

⚠️ 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

⚡ 1 improved benchmark
❌ 2 regressed benchmarks
✅ 2094 untouched benchmarks
⏩ 106 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	WallTime	arrow_checked_add_u32_neon[16384]	12.4 µs	20.4 µs	-38.93%
❌	Simulation	nullable_point_column_x_constant_point	619 µs	793.4 µs	-21.99%
⚡	Simulation	compress_fsst[(500, 64, 4)]	490 µs	441.8 µs	+10.92%

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 nemo/row-fn-spatial-distance (4193db3) with develop (00abf60)}

Footnotes

1. 106 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. ↩

[connortsui20]

This infallible flag is for if the dispatch / fn operation can fail, not if it is decode safe, that is what the const DECODE_INFALLIBLE: bool = false; in vortex-spatial/src/scalar_fn/row.rs is for

[connortsui20]

whoops there is something wrong here

[connortsui20]

#9618 will fix the docs