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GreptimeDB v1.1 introduces online repartitioning for existing tables via a single ALTER TABLE statement, eliminating the need for data migration, dual-writes, or application changes. It leverages shared object storage and logical shards to update manifests and routing without moving data between nodes.
This paper introduces Collaborative Routing Constructors (CoRC), a framework that enables independently solved subproblems to exchange customers and vehicles during optimization, improving feasibility and scalability for large-scale Capacitated Vehicle Routing Problems.
This article discusses common pitfalls in database partitioning, particularly the mistake of partitioning by a date column that forces queries to include a date filter. It proposes partitioning by the primary key instead and using a background service to manage partition boundaries, thus avoiding the need to modify application code.
PostgreSQL 19 beta introduces key features like REPACK CONCURRENTLY, partition splitting and merging, and enhanced logical replication, offering practical improvements for production database management.
GreptimeDB v1.1 introduces online repartitioning for existing tables, incremental Flow reads, a semantic layer for LLMs, and stability improvements.