Query optimization - Open Access .click

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Optimizing Navigational Graph Queries [PDF]

arXiv
We study the optimization of navigational graph queries, i.e., queries which combine recursive and pattern-matching fragments. Current approaches to their evaluation are not effective in practice. Towards addressing this, we present a number of novel powerful optimization techniques which aim to constrain the intermediate results during query ...
arxiv

A robust, optimization-based approach for approximate answering of aggregate queries [PDF]

, 2001
Surajit Chaudhuri, Gautam Das, Vivek Narasayya +2 more
openalex +1 more source

First Past the Post: Evaluating Query Optimization in MongoDB [PDF]

arXiv
Query optimization is crucial for every database management system (DBMS) to enable fast execution of declarative queries. Most DBMS designs include cost-based query optimization. However, MongoDB implements a different approach to choose an execution plan that we call "first past the post" (FPTP) query optimization.
arxiv

Semantic query optimization for methods in object-oriented database systems [PDF]

, 2002
Karl Aberer, Gisela Fischer
openalex +1 more source

Optimizing Queries with Many-to-Many Joins [PDF]

arXiv
As database query processing techniques are being used to handle diverse workloads, a key emerging challenge is how to efficiently handle multi-way join queries containing multiple many-to-many joins. While uncommon in traditional enterprise settings that have been the focus of much of the query optimization work to date, such queries are seen ...
arxiv

Exploiting upper and lower bounds in top-down query optimization [PDF]