feat(core): Add bucket function implementation#218
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lxy-9602 merged 17 commits intoalibaba:mainfrom Apr 15, 2026
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- Add BucketFunction interface and BucketFunctionType enum - Implement ModBucketFunction for hash-based bucket assignment - Implement DefaultBucketFunction for default bucket behavior - Add bucket_num option to CoreOptions - Extend BucketIdCalculator to support bucket function - Add unit tests for bucket functions and related components
- Add HiveHasher utility with Hive-compatible hash functions for int, long, bytes, and decimal types - Implement HiveBucketFunction aligned with Java HiveBucketFunction, supporting BOOLEAN, TINYINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, STRING, BINARY, DECIMAL, and DATE field types - Handle special cases: -0.0f/0.0 normalization, decimal trailing zero stripping, and null field hashing - Add comprehensive unit tests covering mixed types, nulls, negative zero, and edge cases
ChaomingZhangCN
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ChaomingZhangCN
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lxy-9602
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Apr 11, 2026
lxy-9602
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Apr 13, 2026
lszskye
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Apr 15, 2026
lszskye
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Apr 15, 2026
lszskye
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Apr 15, 2026
lszskye
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Apr 15, 2026
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Purpose
Linked issue: close #173
Tests
API and Format
Documentation
Generative AI tooling
Generated-by: Claude Code