Unverified50% confidenceSolutionExact time
对每个chunk文本计算SHA-256哈希进行变更检测，内容未变的chunk跳过，只对新增或变更的chunk重新向量化，可将向量化成本降到最低并杜绝重复向量
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50%
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Long-term
Relevance
8/26/2026
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