Library / SDK
Retrieval & Memory
pgvector
1Vector 2similarity 3search 4inside 5Postgres 6itself.
the six Ws · specification
W1
Who
Open-source PostgreSQL extension.
W2
What
Adds vector types and similarity search to Postgres.
W3
Where
Runs inside any PostgreSQL database.
W4
When
When you already run Postgres and want vectors.
W5
Why
Keeps embeddings beside your relational data.
W6
With
A PostgreSQL database.
alternatives
works with