LayoutEncodingAdapter::build doesn't need to panic, it can error

[robert3005]

Those panics look like an omission

[github-actions]

Polar Signals Profiling Results

Latest Run

Status	Commit	Job	Attempt	Link
🟢 Done	ca696bd		1	Explore Profiling Data

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[github-actions]

Benchmarks: Vortex queries

Verdict: Likely regression (high confidence)
Attributed Vortex impact: +14.7%
Engines: DataFusion Likely regression (+14.1%, high confidence) · DuckDB Likely regression (+15.2%, high confidence)
Vortex (geomean): 1.177x ❌
Parquet (geomean): 1.099x ➖
Shifts: Parquet (control) +9.9% · Median polish +17.9%

How to read Verdict and Engines

• Verdict: Overall PR-level signal after subtracting baseline drift estimated from Parquet control rows. It can be Likely improvement, Likely regression, or No clear signal.
• Engines: Per-engine attribution. DataFusion is compared against DataFusion/Parquet controls; DuckDB is compared against DuckDB/Parquet controls. This answers whether each engine improved or regressed independently.
• Confidence: Based on directional consistency, share of rows above the noise floor, and control-run noise.

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datafusion / vortex-file-compressed (1.264x ❌, 0↑ 2↓)

name	PR ca696bd (ns)	base 10b8173 (ns)	ratio (PR/base)
vortex_q00/datafusion:vortex-file-compressed 🚨	11980697	9517908	1.26
vortex_q01/datafusion:vortex-file-compressed 🚨	7582449	5978341	1.27

datafusion / parquet (1.107x ❌, 0↑ 1↓)

name	PR ca696bd (ns)	base 10b8173 (ns)	ratio (PR/base)
vortex_q00/datafusion:parquet	22519524	20503552	1.10
vortex_q01/datafusion:parquet 🚨	5218480	4674824	1.12

duckdb / vortex-file-compressed (1.256x ❌, 0↑ 2↓)

name	PR ca696bd (ns)	base 10b8173 (ns)	ratio (PR/base)
vortex_q00/duckdb:vortex-file-compressed 🚨	12287265	9942582	1.24
vortex_q01/duckdb:vortex-file-compressed 🚨	7487620	5865264	1.28

duckdb / parquet (1.090x ➖, 0↑ 1↓)

name	PR ca696bd (ns)	base 10b8173 (ns)	ratio (PR/base)
vortex_q00/duckdb:parquet 🚨	25824564	23082716	1.12
vortex_q01/duckdb:parquet	9941066	9356142	1.06

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