{"id":"rds-free-tier-engines-t3-t4g-micro","text":"RDS Free Tier eligible engines are MariaDB, MySQL, PostgreSQL, and SQL Server Express Edition on db.t3.micro or db.t4g.micro (t4g.micro not available for SQL Server Express).","truth_value":"IN","source":"entries/2026/03/08/rds-overview.md","source_url":"","source_hash":"15a8e410d0f47de7","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"rds-free-tier-engines-t3-t4g-micro","truth_value":"IN","reason":"premise"}]}}