pgvector-swift

Category: SDKs & Libraries
Brand: pgvector
Source: https://github.com/pgvector/pgvector-swift

Swift bindings and examples for using the pgvector PostgreSQL extension from Swift and server-side Swift applications.

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Features

• pgvector integration for Swift

  • Provides Swift support for the pgvector extension in PostgreSQL.
  • Enables use of PostgreSQL as a vector database from Swift and server-side Swift apps.

• Database driver support

  • Works with PostgresNIO (Vapor ecosystem).
  • Works with PostgresClientKit.

• Swift Package Manager compatible

  • Distributed as a Swift Package.
  • Can be added to Package.swift for both PostgresNIO and PostgresClientKit projects.

• Type registration and extensions

  • Provides extensions for the supported database clients so they can handle pgvector types.
  • Includes steps to enable the extension and register vector types when configuring the database.

• Schema and operations support

  • Examples for creating tables that store vector columns.
  • Sample code to insert vectors into PostgreSQL.
  • Sample queries to retrieve nearest neighbors using pgvector.

• Indexing and search configuration

  • Demonstrates how to add an approximate index for vector similarity search.
  • Shows how to use pgvector operator classes:
    • vector_ip_ops for inner product similarity.
    • vector_cosine_ops for cosine distance similarity.

• Reference examples and tests

  • Example code provided under Examples/.
  • Full usage examples for:
    • PostgresNIO: Tests/PgvectorTests/PostgresNIOTests.swift
    • PostgresClientKit: tests/examples under Tests/PgvectorTests.

• Open source

  • Source code and changelog available in the repository.
  • Licensed under the terms in LICENSE.txt (see repo for exact license).

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Pricing

• Free and open source
  • No pricing tiers are listed; usage is governed by the open-source license in LICENSE.txt.

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Links

• Repository: https://github.com/pgvector/pgvector-swift
• pgvector project: https://github.com/pgvector/pgvector
• Supported clients:
  • PostgresNIO: https://github.com/vapor/postgres-nio
  • PostgresClientKit: https://github.com/codewinsdotcom/PostgresClientKit