I agree that putting the vectors in a separate DB often does not makes. Just use Hana https://news.sap.com/2024/04/sap-hana-cloud-vector-engine-ai... ;-) IMHO putting the calculation of the embedding vectors into the db (even if it is just a remote call) is not a got idea. How do you react to failures of the remote call, security issues because of code running within your DB ..?