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Amazon Aurora PostgreSQL Limitless Database is now generally available


Today, we are announcing the general availability of Amazon Aurora PostgreSQL Limitless Database, a new serverless horizontal scaling (sharding) capability of Amazon Aurora. With Aurora PostgreSQL Limitless Database, you can scale beyond the existing Aurora limits for write throughput and storage by distributing a database workload over multiple Aurora writer instances while maintaining the ability to use it as a single database.

When we previewed Aurora PostgreSQL Limitless Database at AWS re:Invent 2023, I explained that it uses a two-layer architecture consisting of multiple database nodes in a DB shard group – either routers or shards to scale based on the workload.

  • Routers – Nodes that accept SQL connections from clients, send SQL commands to shards, maintain system-wide consistency, and return results to clients.
  • Shards – Nodes that store a subset of tables and full copies of data, which accept queries from routers.

There will be three types of tables that contain ...


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