ACM Transactions on Database Systems (TODS)
Logic-based approach to semantic query optimization
ACM Transactions on Database Systems (TODS)
Access support in object bases
SIGMOD '90 Proceedings of the 1990 ACM SIGMOD international conference on Management of data
A general framework for the optimization of object-oriented queries
SIGMOD '92 Proceedings of the 1992 ACM SIGMOD international conference on Management of data
Algebraic optimization of object-oriented query languages
ICDT Selected papers of the 4th international conference on Database theory
An optimizing prolog front-end to a relational query system
SIGMOD '84 Proceedings of the 1984 ACM SIGMOD international conference on Management of data
Semantic Query Optimization for Object Databases
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Optimizing Queries with Materialized Views
ICDE '95 Proceedings of the Eleventh International Conference on Data Engineering
Inferring Function Semantics to Optimize Queries
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
Implementation of Two Semantic Query Optimization Techniques in DB2 Universal Database
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
An Algebraic Framework for Physical OODB Design
DBLP-5 Proceedings of the Fifth International Workshop on Database Programming Languages
Physical Data Independence, Constraints, and Optimization with Universal Plans
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
Query Transformation for PSJ-Queries
VLDB '87 Proceedings of the 13th International Conference on Very Large Data Bases
The GMAP: a versatile tool for physical data independence
The VLDB Journal — The International Journal on Very Large Data Bases
Fast decision algorithms based on union and find
SFCS '77 Proceedings of the 18th Annual Symposium on Foundations of Computer Science
Minimization of tree pattern queries
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
A Scalable Algorithm for Answering Queries Using Views
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
A Semantic Query Optimization Approach to Optimize Linear Datalog Programs
ADBIS '02 Proceedings of the 6th East European Conference on Advances in Databases and Information Systems
Query Processing in Embedded Control Programs
DBTel '01 Proceedings of the VLDB 2001 International Workshop on Databases in Telecommunications II
Optimization Properties for Classes of Conjunctive Regular Path Queries
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
On the Expressive Power of Data Integration Systems
ER '02 Proceedings of the 21st International Conference on Conceptual Modeling
Tree pattern query minimization
The VLDB Journal — The International Journal on Very Large Data Bases
MiniCon: A scalable algorithm for answering queries using views
The VLDB Journal — The International Journal on Very Large Data Bases
Answering queries using views: A survey
The VLDB Journal — The International Journal on Very Large Data Bases
A logic-based approach to data integration
Theory and Practice of Logic Programming
Query reformulation with constraints
ACM SIGMOD Record
Semantic errors in SQL queries: A quite complete list
Journal of Systems and Software - Special issue: Quality software
RRXS: redundancy reducing XML storage in relations
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
MARS: a system for publishing XML from mixed and redundant storage
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Answering form-based web queries using the data-mining approach
Journal of Intelligent Information Systems
Constraint acquisition you can chase but you cannot find
APCCM '08 Proceedings of the fifth Asia-Pacific conference on Conceptual Modelling - Volume 79
Exploiting Interactions among Query Rewrite Rules in the Teradata DBMS
DEXA '08 Proceedings of the 19th international conference on Database and Expert Systems Applications
Computing certain answers in the presence of dependencies
Information Systems
PSI'06 Proceedings of the 6th international Andrei Ershov memorial conference on Perspectives of systems informatics
Semantic query optimization in the presence of types
Proceedings of the twenty-ninth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Types and constraints: from relational to XML data
SDKB'10 Proceedings of the 4th international conference on Semantics in data and knowledge bases
A query rewriting system for enhancing the queriability of form-based interface
ICADL'04 Proceedings of the 7th international Conference on Digital Libraries: international collaboration and cross-fertilization
Semantic query optimization in the presence of types
Journal of Computer and System Sciences
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In a previous paper we proposed a novel method for generating alternative query plans that uses chasing (and back-chasing) with logical constraints. The method brings together use of indexes, use of materialized views, semantic optimization and join elimination (minimization). Each of these techniques is known separately to be beneficial to query optimization. The novelty of our approach is in allowing these techniques to interact systematically, eg. non-trivial use of indexes and materialized views may be enabled only by semantic constraints.We have implemented our method for a variety of schemas and queries. We examine how far we can push the method in term of complexity of both schemas and queries. We propose a technique for reducing the size of the search space by “stratifying” the sets of constraints used in the (back)chase. The experimental results demonstrate that our method is practical (i.e., feasible and worthwhile).