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feat(hnsw): support building the graph from original vectors via provider - #657

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richyreachy wants to merge 9 commits into
alibaba:mainfrom
richyreachy:feat/build_from_original
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feat(hnsw): support building the graph from original vectors via provider#657
richyreachy wants to merge 9 commits into
alibaba:mainfrom
richyreachy:feat/build_from_original

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Add the ability to build the HNSW graph from original (raw) vectors supplied by an index provider, instead of the (possibly quantized/transformed) vectors stored in the index entity. This improves graph quality when the stored vectors are lossy, while search still runs against the vectors stored in the index.

@richyreachy
richyreachy requested a review from iaojnh August 5, 2026 07:43
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