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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
h6b19b674d5201419
Venue
VLDB
Year
1997
Pagerank
0.00026736308
Overall Rank
174 | 98.84%
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 0.00040739114
92 CrowdDB: Answering Queries with Crowdsourcing 2011 SIGMOD 0.00034613457
271 Reconciling Schemas of Disparate Data Sources: A Machine-Learning Approach 2001 SIGMOD 0.00022566676
336 An Adaptive Query Execution System for Data Integration* 1999 SIGMOD 0.00020619345
469 Don’t Scrap It, Wrap It! A Wrapper Architecture for Legacy Data Sources 1997 VLDB 0.00017702382
600 Extracting Structured Data from Web Pages 2003 SIGMOD 0.00015700403
826 Data Integration: The Teenage Years 2006 VLDB 0.00013599086
872 Query Optimization in the Presence of Limited Access Patterns 1999 SIGMOD 0.00013307412
1,135 WSQ/DSQ: A Practical Approach for Combined Querying of Databases and the Web* 2000 SIGMOD 0.0001185973
1,339 Catching the Boat with Strudel: Experiences with a Web-Site Management System 1998 SIGMOD 0.0001096441
1,570 Crossing the Structure Chasm 2003 CIDR 0.00010176166
1,692 Garlic: A New Flavor of Federated Query Processing for DB2 2002 SIGMOD 9.8382183e-05
1,793 System RX: One Part Relational, One Part XML 2005 SIGMOD 9.6149082e-05
2,097 Open Data Integration 2018 VLDB 9.0397587e-05
2,140 Query Rewriting for Semistructured Data 1999 SIGMOD 8.9688891e-05
2,175 E-Services: A Look Behind the Curtain 2003 PODS 8.9035887e-05
2,340 Partial Results for Online Query Processing 2002 SIGMOD 8.598874e-05
2,626 Cost-Based Optimization of Decision Support Queries using Transient-Views 1998 SIGMOD 8.1919956e-05
2,961 Mind Your Vocabulary: Query Mapping Across Heterogeneous Information Sources 1999 SIGMOD 7.7957135e-05
3,001 Adapting to Source Properties in Processing Data Integration Queries 2004 SIGMOD 7.7492907e-05
3,095 On Parallel Processing of Aggregate and Scalar Functions in Object-Relational DBMS 1998 SIGMOD 7.6369261e-05
3,103 Query Containment for Data Integration Systems 2000 PODS 7.6298414e-05
3,400 On Wrapping Query Languages and Efficient XML Integration 2000 SIGMOD 7.324283e-05
3,630 Describing and Using Query Capabilities of Heterogeneous Sources 1997 VLDB 7.1283222e-05
3,754 Enterprise Information Integration: Successes, Challenges and Controversies 2005 SIGMOD 7.0295581e-05
4,645 Capability Based Mediation in TSIMMIS 1998 SIGMOD 6.4729024e-05
4,798 Cost Models DO Matter: Providing Cost Information for Diverse Data Sources in a Federated System 1999 VLDB 6.3970893e-05
4,906 Loading a Cache with Query Results 1999 VLDB 6.34751e-05
5,112 Towards Scalable Hybrid Stores: Constraint-Based Rewriting to the Rescue 2019 SIGMOD 6.2578491e-05
5,219 Mapping Maintenance for Data Integration Systems 2005 VLDB 6.2121251e-05
5,516 Answering Queries Using Views with Arithmetic Comparisons 2002 PODS 6.0859896e-05
5,810 Network-Aware Query Processing for Stream-based Applications 2004 VLDB 5.9703192e-05
6,009 Heterogeneous Database Query Optimization in DB2 Universal DataJoiner 1998 VLDB 5.8977772e-05
6,077 Capturing both Types and Constraints in Data Integration 2003 SIGMOD 5.8769112e-05
6,376 Integrating Heterogeneous Overlapping Databases Through Object-Oriented Transformations 1999 VLDB 5.78729e-05
6,681 Generating Efficient Plans for Queries Using Views 2001 SIGMOD 5.6945953e-05
6,684 Query Optimization over Crowdsourced Data 2013 VLDB 5.6940605e-05
6,989 Efficient Evaluation of Queries in a Mediator for WebSources 2002 SIGMOD 5.6106442e-05
7,183 Just-in-time Data Integration in Action 2010 VLDB 5.5757293e-05
7,514 SmartCIS: Integrating Digital and Physical Environments 2009 SIGMOD 5.4900077e-05
8,136 The Nimble Integration Engine 2001 SIGMOD 5.3739121e-05
8,462 Shasta: Interactive Reporting At Scale 2016 SIGMOD 5.3148581e-05
8,497 FORWARD: Data-Centric UIs using Declarative Templates that Efficiently Wrap Third-Party JavaScript Components 2014 VLDB 5.3142291e-05
9,143 Check Out the Big Brain on BRAD: Simplifying Cloud Data Processing with Learned Automated Data Meshes 2023 VLDB 5.2074327e-05
9,437 MOCHA: A Self-Extensible Database Middleware System for Distributed Data Sources 2000 SIGMOD 5.1639026e-05
9,620 Materializing Views with Minimal Size To Answer Queries 2003 PODS 5.1376962e-05
10,322 Request Window: an Approach to Improve Throughput of RDBMS-based Data Integration System by Utilizing Data Sharing Across Concurrent Distributed Queries 2007 VLDB 5.0255524e-05
12,954 The Data Ring: Community Content Sharing 2007 CIDR 4.9605343e-05
13,205 HyperQueries: Dynamic Distributed Query Processing on the Internet 2001 VLDB 4.9605343e-05
13,225 Approximate Query Translation Across Heterogeneous Information Sources 2000 VLDB 4.9605343e-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 0.0023948467
117 Querying Heterogeneous Information Sources Using Source Descriptions 1996 VLDB 0.00031526277
118 The EXODUS Optimizer Generator 1987 SIGMOD 0.00031320165
197 Grammar-like Functional Rules for Representing Query Optimization Alternatives 1988 SIGMOD 0.00025558952
275 Extensible Query Processing in Starburst 1989 SIGMOD 0.000224395
469 Don’t Scrap It, Wrap It! A Wrapper Architecture for Legacy Data Sources 1997 VLDB 0.00017702382
691 Query Optimization in the Presence of Foreign Functions 1993 VLDB 0.00014701803
1,057 Answering Queries Using Limited External Query Processors 1996 PODS 0.00012235875
1,623 Intelligent Integration of Information 1993 SIGMOD 0.00010036768
1,630 Query Optimization in Heterogeneous DBMS 1992 VLDB 0.00010013052
2,397 Performance Tradeoffs for Client-Server Query Processing 1996 SIGMOD 8.5108976e-05
2,631 Processing Queries Over Generalization Hierarchies in a Multidatabase System 1983 VLDB 8.1810097e-05
3,218 Implementing an Interpreter for Functional Rules in a Query Optimizer 1988 VLDB 7.5096666e-05
3,857 EROC: A Toolkit for Building NEATO Query Optimizers 1996 VLDB 6.9553827e-05
4,818 Calibrating the Query Optimizer Cost Model of IRO-DB, an Object-Oriented Federated Database System 1996 VLDB 6.3886935e-05
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Semantically Similar Papers

# Overall Rank Paper Year Venue
1 3,178 The Garlic Project 1996 SIGMOD
2 3,345 On the Complexity of Query Result Diversification 2013 VLDB
3 2,997 Querying with Access Patterns and Integrity Constraints 2015 VLDB
4 6,376 Integrating Heterogeneous Overlapping Databases Through Object-Oriented Transformations 1999 VLDB
5 9,370 Enabling Rich Queries Over Heterogeneous Data From Diverse Sources In HealthCare 2020 CIDR
6 3,413 Quality-driven Integration of Heterogeneous Information Systems 1999 VLDB
7 1,692 Garlic: A New Flavor of Federated Query Processing for DB2 2002 SIGMOD
8 170 Combining Fuzzy Information from Multiple Systems 1996 PODS
9 4,906 Loading a Cache with Query Results 1999 VLDB
10 469 Don’t Scrap It, Wrap It! A Wrapper Architecture for Legacy Data Sources 1997 VLDB