pgvector-ocaml

Category: SDKs & Libraries
Tags: sdk, pgvector, vector-store

Overview

pgvector-ocaml provides OCaml examples for using the pgvector PostgreSQL extension, demonstrating how to perform vector indexing and nearest-neighbor search from OCaml code. It is designed to work with the PostgreSQL-OCaml database library.

• Language: OCaml
• Works with: pgvector, PostgreSQL-OCaml
• Source: https://github.com/pgvector/pgvector-ocaml

Features

• Example OCaml code for integrating pgvector with PostgreSQL.
• Demonstrates how to enable the pgvector extension in PostgreSQL from OCaml flows.
• Shows how to create tables that store vector data.
• Examples for inserting vector values into PostgreSQL using OCaml.
• Query patterns for retrieving nearest neighbors using pgvector.
• Demonstrates adding an approximate index for faster similarity search.
• Usage of specific pgvector operator classes:
  • vector_ip_ops for inner product similarity.
  • vector_cosine_ops for cosine distance similarity.
• Includes a full working example in example.ml.
• Configured with Dune (dune, dune-project) for building OCaml code.
• GitHub Actions workflow for automated builds (build status badge provided).

Technical Details

• Ecosystem: PostgreSQL, pgvector extension, OCaml
• Primary use case: Vector similarity search and indexing from OCaml applications using PostgreSQL.

Licensing

• License file: LICENSE.txt (see repository for exact terms).

Pricing

• Not applicable. This is an open-source library/example repository; no pricing information is provided.