Show HN: Vectorwrap: one line vector search for Postgres, MySQL, SQLite, DuckDB

Over the past few months I kept switching between pgvector in production and SQLite-VSS / DuckDB in notebooks. Every swap meant spending time in the syntax land.

Vectorwrap hides those differences behind one tiny Python adaptor: create a collection, upsert, query — then change only the connection string when you switch databases.

Here, I have tried to solve my direct pain point, so curious if this has application beyond my usecase.

What’s inside

Backends: Postgres 16 + pgvector, MySQL 8.2 (Vector Store), SQLite VSS, DuckDB VSS

Same filter dict syntax on every engine (SQLite uses adaptive oversampling internally)

Repo https://github.com/mihirahuja1/vectorwrap

I’d love some feedback on API design, missing edge cases, or reasons you wouldn’t adopt something like this. Thanks for taking a look!