HNSW Index: Unify heuristic policies - #46
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Centralize the ExtendCandidates/KeepPrunedConnections policies in GraphOperations as named constants used by a new consume_heuristic() wrapper, instead of repeating the same literals at each layer's consume_heuristic() call site. Also mark the query node visited up front in seed_impl() so it cannot reappear as its own candidate.
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August 18, 2026 15:54
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Centralize the ExtendCandidates/KeepPrunedConnections policies in GraphOperations as named constants used by a new consume_heuristic() wrapper, instead of repeating the same literals at each layer's consume_heuristic() call site.
Also mark the query node visited up front in seed_impl() so it cannot reappear as its own candidate.