March 2026 monthly summary for the tursodatabase/turso repository focused on delivering a performance-focused feature: Database Query Performance Optimization via Ordering with Composite Index. The key change optimizes query plans so unnecessary sorts are eliminated when a composite index satisfies the ORDER BY clause. This targeted improvement covers common patterns such as WHERE status = 'published' and ORDER BY published_at DESC, leveraging an index like (status, published_at DESC) to satisfy both filtering and ordering. The optimizer now recognizes equality-constrained prefixes and uses remaining index columns to provide correct ordering, bypassing redundant sorting. Co-authored by Claude Opus 4.6, this work enhances query latency and reduces CPU overhead for high-frequency read paths without changing the public API. The change is isolated to the query planner and index usage logic, with clear, maintainable code changes.