AWS Database Blog
Category: Intermediate (200)
MCP tools for Amazon Aurora DSQL: Query execution and schema management
Learn how to set up the Amazon Aurora DSQL MCP server and use it from your AI coding assistant to run queries, evolve schemas, and check Aurora DSQL compatibility without leaving your IDE. This post walks through installation, the available MCP tools, practical integration patterns, and the security model.
Advanced data modeling: Using user-defined types and Protocol Buffers for Amazon Keyspaces
Amazon Keyspaces supports two approaches for modeling complex data: user-defined types (UDTs) and Protocol Buffers. This post shows how to create and manage UDTs, implement Protobuf serialization, and choose between the two based on your application needs.
Scale smart, not just big: a practical guide to multi-node Amazon Timestream for InfluxDB 3 Enterprise
With the release of multi-node scaling for Amazon Timestream for InfluxDB 3 Enterprise, clusters can now support up to 15 nodes with distinct roles. You can separate ingestion, querying, and compaction to match your workload’s demands. In this post, we cover when to scale vertically versus horizontally, and how to make the right choice for both stability and cost.
Building a multi-Region API with Prisma ORM and Amazon Aurora DSQL
In this post, we show how you can build a multi-Region active-active API using Prisma ORM and Amazon Aurora DSQL.
Migrating mission-critical payments at Nubank to Amazon Aurora PostgreSQL
Managing payment infrastructure at scale presents unique challenges that impact both performance and operational efficiency. In this post, we share the technical and operational challenges Nubank faced with self-managed PostgreSQL, the evaluation criteria they established for selecting database solutions, and the results from their successful migration to Amazon Aurora PostgreSQL-Compatible Edition. Nubank achieved up to 1,900x query performance improvements in specific cases.
Connection pooling strategies in Amazon Aurora DSQL
In this post, you’ll learn four concrete strategies that help you reduce Aurora DSQL connection overhead, stay within the 100-connections-per-second rate limit, and avoid thundering-herd reconnection storms. By the end, you’ll have a production-ready checklist for configuring connection pools that support reliable performance at scale.
Build a semantic ontology to power AI assistants on AWS – Part 1
In this post, we show you how to build a semantic ontology that helps your AI assistants navigate enterprise data efficiently. You’ll learn how to structure a property graph store for data relationships, set up vector indexing for semantic search, and implement an automated fact-learning layer that improves use. This bottom-up approach grounds your ontology in the data that exists, building abstractions from observed patterns rather than theoretical models.
Logical replication improvements in Amazon RDS for PostgreSQL 18
In this post, we demonstrate how to use the PostgreSQL 18 logical replication improvements on RDS for PostgreSQL: replicating STORED generated columns with the publish_generated_columns parameter, monitoring conflicts through the new counters in pg_stat_subscription_stats, verifying that parallel streaming is enabled by default, toggling two-phase commit on a running subscription, and configuring idle_replication_slot_timeout for automatic slot cleanup. These features are available on RDS for PostgreSQL 18.0 and later and Aurora PostgreSQL.
How CRED uses Amazon RDS Blue/Green Deployments at scale
In this post, you will learn how CRED built an automated orchestration framework around Amazon RDS blue/green deployments. The framework performs engine upgrades, instance scaling, storage optimization, and Change Data Capture (CDC) pipeline migration across their entire fleet. This approach achieved zero data loss incidents and zero production incidents.
User authentication and session management with Amazon Aurora DSQL
In this post, you learn how to design and implement a user authentication service with session management on Amazon Aurora DSQL. You see the full request flow from client to database and back, explore the design considerations specific to Amazon Aurora DSQL, and discover practical lessons from building and testing against a live cluster.









