Streaming Data into Postgres with Estuary

Posted on 2025-04-29 by Estuary Flow
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Estuary now provides native support for real-time data streaming into PostgreSQL via its PostgreSQL materialization connector. With this, users can configure Flow collections to automatically write into PostgreSQL tables β€” in seconds, at scale, and with exactly-once semantics.

Whether you’re using a self-hosted Postgres instance or a managed database like Amazon RDS, Google Cloud SQL, or Azure Database for PostgreSQL, Estuary ensures secure and reliable connectivity β€” including support for SSL and SSH tunneling.

Key Features:

  • Automatically creates target tables for each collection
  • Supports standard and delta updates
  • Handles schema evolution and reserved Postgres keywords
  • Preserves column capitalization and converts data types (e.g., ipv4, macaddr, duration)
  • Open-source compatible with Docker image:
    ghcr.io/estuary/materialize-postgres:dev

This connector is part of Estuary Flow β€” a real-time data platform that bridges Postgres with upstream systems like Kafka, MongoDB, APIs, and more.

πŸ“˜ Documentation: Streaming into PostgreSQL with Estuary
πŸš€ Get started with Estuary Flow
πŸ”§ Contact the team