pgvector-haskell

Category: SDKs & Libraries
Brand: pgvector
License: MIT
Language: Haskell

Haskell bindings for the pgvector PostgreSQL extension, allowing Haskell applications to use PostgreSQL as a vector database. Designed to work with the postgresql-simple library.

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Features

• Haskell bindings for pgvector

  • Provides types and functions to work with pgvector columns from Haskell code.
  • Enables storage and retrieval of vector data in PostgreSQL using the pgvector extension.

• Integration with postgresql-simple

  • Explicit support for the postgresql-simple Haskell database library.
  • Library can be imported via:

    import Pgvector
    

• Database extension support

  • Intended to be used with the PostgreSQL pgvector extension (e.g., enabling via CREATE EXTENSION in SQL).
  • Bridges Haskell types to the underlying vector column type provided by pgvector.

• Hackage-style dependency management

  • Distributed as a Haskell package named pgvector.
  • Can be added to a .cabal file with version bounds, e.g.:

    build-depends: pgvector >= 0.1 && < 0.2
    

• Versioned and changelogged

  • Includes a CHANGELOG.md for tracking changes across releases.

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Installation & Setup

• Add to your .cabal file under build-depends:

  pgvector >= 0.1 && < 0.2
  

• Ensure the PostgreSQL pgvector extension is installed and enabled in your database (e.g., via CREATE EXTENSION pgvector;).
• Use with the postgresql-simple library in your Haskell application.

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Pricing

• Open source, available under the MIT license (no usage fee).