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feat(vector): add full-text and hybrid search support for Chroma backend

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- Implement full-text search via Chroma's $contains filter
  - Implement hybrid search with RRF (Reciprocal Rank Fusion) combining
    vector and full-text results, with min-max normalized distances
  - Fix add_embeddings to use col.upsert instead of col.add for idempotency
  - Bump chromadb dependency to >=1.0.0,<2.0.0
  - Re-lock uv.lock with official PyPI source
This commit is contained in:
youhuanghe
2026-03-11 03:59:14 +00:00
parent 0541b05966
commit fe5ce68436
3 changed files with 417 additions and 265 deletions
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pyproject.toml
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@@ -61,7 +61,7 @@ dependencies = [
"html2text>=2024.2.26",
"langchain>=0.2.0",
"langchain-text-splitters>=0.0.1",
"chromadb>=0.4.24",
"chromadb>=1.0.0,<2.0.0",
"qdrant-client (>=1.15.1,<2.0.0)",
"pyseekdb==1.1.0.post3",
"langbot-plugin==0.3.0",