Comment by xfalcox

> Nobody’s actually run this in production

We do at Discourse, in thousands of databases, and it's leveraged in most of the billions of page views we serve.

> Pre- vs. Post-Filtering (or: why you need to become a query planner expert)

This was fixed in version 0.8.0 via Iterative Scans (https://github.com/pgvector/pgvector?tab=readme-ov-file#iter...)

> Just use a real vector database

If you are running a single service that may be an easier sell, but it's not a silver bullet.