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pgvector RAG · ingest · ontology-aware search · entity binding (phases 261/267/268)

pgvector · NIM embeddings · HNSW cosine

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embed via NIM · INSERT with entity_refs · cosine HNSW

document_id source_url access_tier entity_refs (csv ent_*)

chunks (one per line, blank-line-separated)

query → NIM embed → optional graph hop → cosine ANN top-K

query k seed entity ids (csv, optional → onto-aware) hops allowed tiers

sim	doc/chunk	access tier	text	entity refs
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