[BWARE] Handle hash columns in transform decoders and tighten decode metadata#2479

Merged

Baunsgaard merged 11 commits into

apache:mainfrom

Baunsgaard:split/decoderHash

Jun 23, 2026

Commits on Jun 23, 2026

Handle hash columns in transform decoders and tighten decode metadata flow
Baunsgaard
committed
Fix sparse dummycode decode and restore decoder no-arg constructors
Baunsgaard
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Add component tests for transform decoder hash and metadata handling
Baunsgaard
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Speed up boolean-token fallback in StringArray.getAsDouble
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Fix DecoderBin serialization and remove dead _numBins field
Baunsgaard
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Recover hash domain size from meta cell instead of numDistinct
Baunsgaard
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Clean up decode loops and stale hash-metadata comments
Baunsgaard
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Replace decode dispatch TODOs with rationale comments
Baunsgaard
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Add decoder coverage tests and drop unused DecoderBin constructor
Baunsgaard
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Harden decoder error handling and deduplicate source-column mapping
Baunsgaard
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Cover parallel-decode interruption and base sub-range contract
Baunsgaard
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