Support for external VectorDB

[chrbrnracn]

In advance: I'm in no means expert for open-webui, so take my quotes with a grain of salt.

Currently open-webui's internal RAG system uses an internal ChromaDB (according to Dockerfile and backend/requirements.txt).

Supporting an external vector database would bring several benefits:

• Ability to use an external process (eg. LlamaIndex) to populate the database.
• Scalability options (ie. running the DB on a different host)
• Could be used my multiple open-webui instances
• Flexibility to add more database products later (eg. pgvector)

[flefevre]

I totaly agréé with your proposal. It Could be very usefull if user Could set up an ui property to configuré links to multiple chromadb ensuring sécurity accès and multiple rag options.

Is there àny hint on how to move to thèse tumype of solution ?
Where the code should be modify ?

[svaeyens]

+1 for pgvector

[mulkproject]

+100 for pgvector

[RayGicEFL]

+100000000 for pgvector @tjbck 😄