Why Aurora PostgreSQL loves B-tree indexes on OLTP but DynamoDB feels like an LSM—and how cost-based optimization surprises you when statistics go stale on RDS.
Serializable sounds safest until your checkout times out under row locks. This guide maps READ COMMITTED, REPEATABLE READ, and SERIALIZABLE to RDS/Aurora defaults—and when DynamoDB conditional writes are the BASE alternative.
Autovacuum cannot keep up after Black Friday bulk deletes—and your BRIN index is not helping point lookups. Vacuum strategy on Aurora, plus Aurora Limitless and DynamoDB hot key mitigation.
A production-focused guide to Amazon RDS performance: EBS gp3 IOPS and throughput, Performance Insights, read replicas, RDS Proxy, and aggressive application caching with ElastiCache—without outdated patterns like MySQL query cache.
RDS, Aurora, and self-managed Postgres each have a cost breakeven point. This guide covers total cost of ownership, connection pooling with PgBouncer, indexing strategies, and the edge cases that turn Postgres into a billing surprise.
