2026-09-25 · America/Los_Angeles · 社区动态 · #8

At what point did vector search alone stop being enough for you?

Vector search is mostly fine if you're asking for documents about database architecture. If you ask it for a specific customer record with ID 48291 it won't get anything, because similarity search was never meant to do exact lookups. It's kinda obvious when you think about it. But a lot of RAG setups start out vector-only and then run into this. What I see people suggest is doing vector, keyword and metadata filtering in one query rather than keeping a vector store and a relational store side by side and merging results yourself. The argument being that two stores means two calls, two things…

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