Conceitos essenciais
Efficiently process and update queries with constant-delay enumeration using optimal algorithms.
Resumo
The content discusses the comparison between insert-only and insert-delete approaches in dynamic query evaluation. It explores the time complexity, optimality, and lower bounds for various types of queries under updates. The study focuses on maintaining query output after each update efficiently.
Structure:
- Introduction to Dynamic Query Evaluation
- Problem Setting: Incremental View Maintenance (IVM)
- Overview of Main Results: Insert-Only Setting
- Preliminaries: Data Model, Queries, Width Measures
- IVM: Insert-Only Setting - Algorithm Overview
Estatísticas
We show that a stream of 푁 insert-only updates to an initially empty database can be executed in total time O(푁w(푄)).
In contrast, a sequence of 푁 inserts and deletes to 푄 can be executed in total time e O(푁w(b 푄)).
Citações
"We study the dynamic query evaluation problem."
"Amortized time per single-tuple insert is constant for acyclic joins."