Metadata

I've looked through previous questions around metadata searching, but can't seem to find a decent source to help me get what I need. I'm currently splitting my searching through a direct chromadb search, and a llamaindex search. If the user only want's the actual chunk source, then I use chromadb directly. If they want an interpretation through an LLM narrator, then I pass it to llamaindex.

I can constrain which specific source files are searched with chromadb using the following

print(f"****************** Only searching throgh documents {resourceArray}") results = collection.query( query_texts=[queryText], where = { "file_name": { "$in": resourceArray } }, include=["metadatas", "documents", "distances"], n_results=3, )

In this case, resourceArray simply holds the original file names for the content that was ingested.

I can't work out how to do this with llamaindex. I've see this source example, but can't work out how to use a list filter along the same lines as chromadb.

query_engine = index.as_query_engine( service_context=service_context, similarity_top_k=3, vector_store_query_mode="default", filters=MetadataFilters( filters=[ ExactMatchFilter(key="name", value="paul graham"), ] ), alpha=None, doc_ids=None, )

Have I missed something?