Making Most Recent Value Queries Hundreds of Times Faster

This article discusses how databases optimize queries, resulting in faster execution times. It focuses on a specific query type that is important to InfluxDB 3.0 and explains the optimization process which can be applied to any database. The optimization involves creating specialized operators and recombining existing ones to form a more efficient query plan. By implementing this approach, large-time-range queries in InfluxDB 3.0 run hundreds of times faster without introducing special indexes or statistics. This improvement not only speeds up the return of results but also reduces resource usage and increases system concurrency levels.