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    1. Home
    2. Vector Database
    3. PostgreSQL (with pgvector)

    PostgreSQL (with pgvector)

    Powerful open-source object-relational database system that, with the pgvector extension, serves as a capable vector database for AI applications. Widely used from small projects to large-scale enterprise systems, and offered as managed services by major cloud providers.

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    Information

    Websitewww.postgresql.org
    PublishedApr 4, 2026

    Categories

    1 Item
    Vector Database

    Tags

    3 Items
    #open-source#relational#pgvector

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    PostgreSQL

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    Overview

    PostgreSQL is a powerful, open-source object-relational database system known for its reliability, feature robustness, and performance. With the pgvector extension, PostgreSQL gains vector search capabilities, enabling its use as a vector database for AI and machine learning applications.

    Vector Search with pgvector

    • pgvector enables vector similarity search within PostgreSQL
    • Supported by major cloud providers as managed services:
      • Google Cloud: AlloyDB
      • AWS: Aurora Postgres
      • Azure: Azure SQL Hyperscale
    • Combines traditional relational queries with vector search in a single system

    Features

    • Robust, feature-rich object-relational database system
    • Wide range of supported data types, including structured SQL and JSON
    • Open source with extensive community support and resources
    • Deployable on-premises or in the cloud
    • ACID compliance and strong data integrity guarantees

    Cons

    • Can be resource intensive for large-scale deployments
    • Does not efficiently handle both transactional and analytics use cases simultaneously
    • Feature complexity can lead to a steeper learning curve for new users
    • Requires the pgvector extension specifically for vector search capabilities