Aurora Limitless: AWS Introduces New PostgreSQL Database with Automated Horizontal Scaling
Briefly

The new capability enables developers to scale relational database workloads beyond the limits of a single Aurora PostgreSQL writer instance, eliminating the need to create custom application logic or manage multiple databases.
You can convert standard tables to sharded or reference tables to distribute or replicate existing standard tables or create new sharded and reference tables.
Once you have created the DB shard group and your sharded and reference tables, you can load massive amounts of data into Aurora PostgreSQL Limitless Database and query data in those tables using standard PostgreSQL queries.
To achieve a high degree of parallel processing, Aurora PostgreSQL Limitless Database utilizes two querying methods: single-shard queries and distributed queries.
Read at InfoQ
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