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Optimizing Queries across Diverse Data Sources

Summary: Garlic’s optimizer extends rule-based optimization to heterogeneous data integration, combining generic middleware rules with wrapper-supplied source capabilities. This modular design supports extensibility, incremental rule implementation, and effective cross-source plan generation. (summarized by gpt-5.6-luna on Jul 24 2026)

Paper ID
8619
Venue
VLDB
Year
1997
Pagerank
0.00027363924
Overall Rank
171 | 98.83%
DOI
-

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@article{haas_vldb97,
        title = {{Optimizing Queries across Diverse Data Sources}},
        author = {Haas, Laura M. and Kossmann, Donald and Wimmers, Edward L. and Yang, Jun},
        journal = {PVLDB},
        series = {{VLDB} '97},
        year = {1997}
}

Incoming Citations (Sorted by Pagerank)

Showing 50 of 53 citing papers.

Rank Citing Paper Year Venue Pagerank
53 Eddies: Continuously Adaptive Query Processing 2000 SIGMOD 0.00041071971
90 CrowdDB: Answering Queries with Crowdsourcing 2011 SIGMOD 0.00034951786
263 Reconciling Schemas of Disparate Data Sources: A Machine-Learning Approach 2001 SIGMOD 0.0002305693
328 An Adaptive Query Execution System for Data Integration* 1999 SIGMOD 0.00021081317
457 Don’t Scrap It, Wrap It! A Wrapper Architecture for Legacy Data Sources 1997 VLDB 0.00018120468
588 Extracting Structured Data from Web Pages 2003 SIGMOD 0.00016092668
851 Query Optimization in the Presence of Limited Access Patterns 1999 SIGMOD 0.00013611183
917 Data Integration: The Teenage Years 2006 VLDB 0.00013224381
1,106 WSQ/DSQ: A Practical Approach for Combined Querying of Databases and the Web* 2000 SIGMOD 0.00012151041
1,302 Catching the Boat with Strudel: Experiences with a Web-Site Management System 1998 SIGMOD 0.00011238375
1,540 Crossing the Structure Chasm 2003 CIDR 0.00010430413
1,675 Garlic: A New Flavor of Federated Query Processing for DB2 2002 SIGMOD 0.00010035333
1,744 System RX: One Part Relational, One Part XML 2005 SIGMOD 9.868841e-05
2,114 Query Rewriting for Semistructured Data 1999 SIGMOD 9.1481121e-05
2,122 E-Services: A Look Behind the Curtain 2003 PODS 9.1402274e-05
2,216 Open Data Integration 2018 VLDB 8.9374127e-05
2,280 Partial Results for Online Query Processing 2002 SIGMOD 8.8129961e-05
2,593 Cost-Based Optimization of Decision Support Queries using Transient-Views 1998 SIGMOD 8.3649196e-05
2,884 Mind Your Vocabulary: Query Mapping Across Heterogeneous Information Sources 1999 SIGMOD 7.9976626e-05
2,997 Adapting to Source Properties in Processing Data Integration Queries 2004 SIGMOD 7.8745158e-05
3,036 On Parallel Processing of Aggregate and Scalar Functions in Object-Relational DBMS 1998 SIGMOD 7.8287552e-05
3,039 Query Containment for Data Integration Systems 2000 PODS 7.8265533e-05
3,325 On Wrapping Query Languages and Efficient XML Integration 2000 SIGMOD 7.5196252e-05
3,563 Describing and Using Query Capabilities of Heterogeneous Sources 1997 VLDB 7.3076984e-05
3,664 Enterprise Information Integration: Successes, Challenges and Controversies 2005 SIGMOD 7.2148176e-05
4,542 Capability Based Mediation in TSIMMIS 1998 SIGMOD 6.6395511e-05
4,700 Cost Models DO Matter: Providing Cost Information for Diverse Data Sources in a Federated System 1999 VLDB 6.5557492e-05
4,771 Loading a Cache with Query Results 1999 VLDB 6.5158709e-05
4,968 Towards Scalable Hybrid Stores: Constraint-Based Rewriting to the Rescue 2019 SIGMOD 6.4206525e-05
5,064 Mapping Maintenance for Data Integration Systems 2005 VLDB 6.3783698e-05
5,361 Answering Queries Using Views with Arithmetic Comparisons 2002 PODS 6.2484907e-05
5,662 Network-Aware Query Processing for Stream-based Applications 2004 VLDB 6.129927e-05
5,882 Heterogeneous Database Query Optimization in DB2 Universal DataJoiner 1998 VLDB 6.0518777e-05
5,939 Capturing both Types and Constraints in Data Integration 2003 SIGMOD 6.0339259e-05
6,233 Integrating Heterogeneous Overlapping Databases Through Object-Oriented Transformations 1999 VLDB 5.9425753e-05
6,540 Generating Efficient Plans for Queries Using Views 2001 SIGMOD 5.8471897e-05
6,548 Query Optimization over Crowdsourced Data 2013 VLDB 5.8443704e-05
6,833 Efficient Evaluation of Queries in a Mediator for WebSources 2002 SIGMOD 5.7596307e-05
7,019 Just-in-time Data Integration in Action 2010 VLDB 5.7247411e-05
7,349 SmartCIS: Integrating Digital and Physical Environments 2009 SIGMOD 5.6367214e-05
7,943 The Nimble Integration Engine 2001 SIGMOD 5.5181056e-05
8,272 Shasta: Interactive Reporting At Scale 2016 SIGMOD 5.4574671e-05
8,307 FORWARD: Data-Centric UIs using Declarative Templates that Efficiently Wrap Third-Party JavaScript Components 2014 VLDB 5.4562544e-05
9,270 MOCHA: A Self-Extensible Database Middleware System for Distributed Data Sources 2000 SIGMOD 5.2946605e-05
9,403 Materializing Views with Minimal Size To Answer Queries 2003 PODS 5.2755515e-05
10,066 Check Out the Big Brain on BRAD: Simplifying Cloud Data Processing with Learned Automated Data Meshes 2023 VLDB 5.1643809e-05
10,078 Request Window: an Approach to Improve Throughput of RDBMS-based Data Integration System by Utilizing Data Sharing Across Concurrent Distributed Queries 2007 VLDB 5.1603976e-05
12,616 The Data Ring: Community Content Sharing 2007 CIDR 5.093636e-05
12,868 HyperQueries: Dynamic Distributed Query Processing on the Internet 2001 VLDB 5.093636e-05
12,888 Approximate Query Translation Across Heterogeneous Information Sources 2000 VLDB 5.093636e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 15 of 15 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
1 Access Path Selection in a Relational Database Management System 1979 SIGMOD 0.0024089429
117 Querying Heterogeneous Information Sources Using Source Descriptions 1996 VLDB 0.00032192665
119 The EXODUS Optimizer Generator 1987 SIGMOD 0.0003183602
192 Grammar-like Functional Rules for Representing Query Optimization Alternatives 1988 SIGMOD 0.00026028406
268 Extensible Query Processing in Starburst 1989 SIGMOD 0.00022788687
457 Don’t Scrap It, Wrap It! A Wrapper Architecture for Legacy Data Sources 1997 VLDB 0.00018120468
677 Query Optimization in the Presence of Foreign Functions 1993 VLDB 0.00015065909
1,031 Answering Queries Using Limited External Query Processors 1996 PODS 0.0001253927
1,581 Intelligent Integration of Information 1993 SIGMOD 0.00010295824
1,595 Query Optimization in Heterogeneous DBMS 1992 VLDB 0.00010249433
2,336 Performance Tradeoffs for Client-Server Query Processing 1996 SIGMOD 8.7302865e-05
2,577 Processing Queries Over Generalization Hierarchies in a Multidatabase System 1983 VLDB 8.3947293e-05
3,153 Implementing an Interpreter for Functional Rules in a Query Optimizer 1988 VLDB 7.6976958e-05
3,779 EROC: A Toolkit for Building NEATO Query Optimizers 1996 VLDB 7.1326925e-05
4,706 Calibrating the Query Optimizer Cost Model of IRO-DB, an Object-Oriented Federated Database System 1996 VLDB 6.5525364e-05
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Semantically Similar Papers

# Overall Rank Paper Year Venue
1 3,112 The Garlic Project 1996 SIGMOD
2 3,596 On the Complexity of Query Result Diversification 2013 VLDB
3 2,947 Querying with Access Patterns and Integrity Constraints 2015 VLDB
4 6,233 Integrating Heterogeneous Overlapping Databases Through Object-Oriented Transformations 1999 VLDB
5 9,222 Enabling Rich Queries Over Heterogeneous Data From Diverse Sources In HealthCare 2020 CIDR
6 3,349 Quality-driven Integration of Heterogeneous Information Systems 1999 VLDB
7 1,675 Garlic: A New Flavor of Federated Query Processing for DB2 2002 SIGMOD
8 170 Combining Fuzzy Information from Multiple Systems 1996 PODS
9 4,771 Loading a Cache with Query Results 1999 VLDB
10 457 Don’t Scrap It, Wrap It! A Wrapper Architecture for Legacy Data Sources 1997 VLDB