from Hacker News

How to Pick a Vector Database – Quantitative Analysis

by crazy_marksman on 9/28/23, 7:59 PM with 6 comments

• by andre-z on 9/28/23, 8:27 PM

  >> Qdrant stores both the vectors and the metadata in a sqlite database. LOL Guys, before developing a DB, learn to write and read code. Qdrant is not using any third party db solutions under the hood (besides Rocks DB for metadata) but written from scratch in Rust. What you benchmarking is the local mode, a client side implementation for quickly trying out stuff without starting a docker. EvoDB, another "Database" written in PURE Python.

• by crazy_marksman on 9/28/23, 7:59 PM

  Key Insights:

  1. Many database back up their data in a sqlite database. Some even push vectors into sqlite, but others store vectors in their own format.

  2. Qdrant has higher client connection and index initialization time that can shadow its benefit on fast and accurate vector search.