llama-index-vector-stores-mnestic 0.1.0

LlamaIndex vector store for mnestic — embedded graph + vector + full-text store with one-call hybrid retrieval.

llama-index-vector-stores-mnestic

A LlamaIndex vector store backed by mnestic — an embedded graph + vector + full-text database (a maintained fork of CozoDB). Retrieval is hybrid: dense (HNSW) + keyword (full-text) fused with Reciprocal Rank Fusion, in one call.

pip install llama-index-vector-stores-mnestic

from llama_index.core import VectorStoreIndex, StorageContext, Document
from llama_index.vector_stores.mnestic import MnesticVectorStore

vector_store = MnesticVectorStore(dim=1536, engine="sqlite", path="mydocs.db")
storage_context = StorageContext.from_defaults(vector_store=vector_store)

index = VectorStoreIndex.from_documents(
    [Document(text="the cat sat on the mat")],
    storage_context=storage_context,
)
nodes = index.as_retriever(similarity_top_k=4).retrieve("feline")

dim must match your embedding model's dimension. query runs hybrid search when the query carries text (the usual index path), otherwise vector-only.

License

Mozilla Public License 2.0.