מושגי ליבה
Hydro utilizes adaptive query processing to efficiently process ML queries by dynamically adjusting the query plan during execution.
תקציר
Abstract: Discusses challenges in query optimization for ML-centric DBMSs and introduces Hydro, an ML-centric DBMS utilizing adaptive query processing.
Introduction: Explores the shift of performance bottlenecks to user-defined functions in ML queries and the need for adaptive query plans.
Data Extraction:
"Delivering up to 11.52× speedup over a baseline system."
Background: Compares static query execution pipelines with adaptive query processing mechanisms.
AQP in Hydro: Details the design of Hydro's AQP executor and its components.
Use Cases:
UC1: Demonstrates cost-driven routing benefits in optimizing predicate order based on cost and selectivity.
UC2: Examines reuse-aware routing for adapting predicate order during execution based on cache hit rates.
UC3: Showcases Laminar operator features for optimal hardware utilization and scalability.
סטטיסטיקה
Delivering up to 11.52× speedup over a baseline system.