LlamaIndex Retrievers Integration: DuckDBRetriever

pip install llama-index-retrievers-duckdb-retriever.

What is this?

This is a BM25 Retriever for DuckDB that can be used with LlamaIndex to enable full-text search.

How to use

This was created with reference to DuckDB Full-Text Search Extension, so it's mostly the same.

Please refer to that.

However, while DuckDBVectorStore is an VectorStore, DuckDBRetriever is a Retriever.

DuckDBRetriever Example:

from llama_index.retrievers.duckdb_retriever import DuckDBRetriever

retriever = DuckDBRetriever(database_name="vector.db", persist_dir="duckdb")
nodes = retriever.retrieve("retrieve_query")