The Picasso database query optimizer visualizer
نویسندگان
چکیده
منابع مشابه
The Picasso Database Query Optimizer Visualizer
Plan Diagram A visualization of the estimated behavior of a selected plan in the plan diagram, when this specific plan is used throughout the selectivity space. Plan-replacement Diagrams Reduced Plan Diagram Shows the extent to which the original plan diagram may be simplified (by replacing some of the plans with their siblings in the plan diagram) without increasing the cost of any individual ...
متن کاملEfficient Use of the Query Optimizer for Automated Database Design
State-of-the-art database design tools rely on the query optimizer for comparing between physical design alternatives. Although it provides an appropriate cost model for physical design, query optimization is a computationally expensive process. The significant time consumed by optimizer invocations poses serious performance limitations for physical design tools, causing long running times, esp...
متن کاملI Efficiency in the Columbia Database Query Optimizer
Query optimization is an area where database systems can achieve significant performance gains. Modern database applications demand optimizers with high extensibility and efficiency. Although more than one decade's efforts have been contributed to these areas, the state of the art in optimizer research is still not adequate for the demands of business. The goal of our Columbia project is to pro...
متن کاملThe MemSQL Query Optimizer: A modern optimizer for real-time analytics in a distributed database
Real-time analytics on massive datasets has become a very common need in many enterprises. These applications require not only rapid data ingest, but also quick answers to analytical queries operating on the latest data. MemSQL is a distributed SQL database designed to exploit memory-optimized, scale-out architecture to enable real-time transactional and analytical workloads which are fast, hig...
متن کاملDORS: Database Query Optimizer with Rule Based Search Engine
The database query optimizer is a very important and complex module in database management systems. It receives a query optimization request with a query tree as a parameter and return an optimized execution plan. The query optimization problem is NP-Hard; therefore, there are many proposals of heuristics and techniques for optimization strategies. There are also several data models (e.g object...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the VLDB Endowment
سال: 2010
ISSN: 2150-8097
DOI: 10.14778/1920841.1921027