Garlic: A New Flavor of Federated Query Processing for DB2

Summary: Garlic is a federated query processor for DB2 enabling access to non-relational sources beside relational data. It uses DB2 catalogs as an extensible metadata store, coordinates source-specific planning with a federated server, and extends the engine to execute remote queries. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 3439
Venue: SIGMOD
Year: 2002
Pagerank: 0.00010035333
Overall Rank: 1,675 | 88.51%
DOI: 10.1145/564691.564751

Incoming Non-self Citations Over Time

Authors

1. Vanja Josifovski (IBM)
2. Peter Schwarz (IBM)
3. Laura Haas (IBM)
4. Eileen Lin (IBM)

BibTeX Citation

@inproceedings{josifovski_sigmod02,
        title = {{Garlic: A New Flavor of Federated Query Processing for DB2}},
        author = {Josifovski, Vanja and Schwarz, Peter and Haas, Laura and Lin, Eileen},
        series = {{SIGMOD} '02},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/564691.564751},
        url = {https://dl.acm.org/doi/10.1145/564691.564751},
        year = {2002}
}

Incoming Citations (Sorted by Pagerank)

Showing 21 of 21 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
879	Constraint-Based XML Query Rewriting for Data Integration	2004	SIGMOD	0.00013456577
2,651	Magpie: Python at Speed and Scale using Cloud Backends	2021	CIDR	8.2918086e-05
3,913	An Approach to Optimize Data Processing in Business Processes	2007	VLDB	7.0230514e-05
4,346	Estimating Compilation Time of a Query Optimizer	2003	SIGMOD	6.7510183e-05
4,785	Data-Sharing Markets: Model, Protocol, and Algorithms to Incentivize the Formation of Data-Sharing Consortia	2023	SIGMOD	6.5084717e-05
7,160	DAPHNE: An Open and Extensible System Infrastructure for Integrated Data Analysis Pipelines	2022	CIDR	5.6855887e-05
7,258	Compliant Geo-distributed Query Processing	2021	SIGMOD	5.6614636e-05
7,687	ExDRa: Exploratory Data Science on Federated Raw Data	2021	SIGMOD	5.5671645e-05
7,755	Blueprinting the Cloud: Unifying and Automatically Optimizing Cloud Data Infrastructures with BRAD	2024	VLDB	5.5519655e-05
7,840	From a Stream of Relational Queries to Distributed Stream Processing	2010	VLDB	5.5339505e-05
8,448	Towards Query Optimizer as a Service (QOaaS) in a Unified LakeHouse Ecosystem: Can One QO Rule Them All?	2025	CIDR	5.4235725e-05
8,494	POLAR: Adaptive and Non-invasive Join Order Selection via Plans of Least Resistance	2024	VLDB	5.4142129e-05
8,841	Parallel Querying with Non-Dedicated Computers	2005	VLDB	5.358974e-05
9,419	Language-Agnostic Integrated Queries in a Managed Polyglot Runtime	2021	VLDB	5.273161e-05
10,000	Saving Money for Analytical Workloads in the Cloud	2024	VLDB	5.1814573e-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
12,671	Randomized Algorithms for Data Reconciliation in Wide Area Aggregate Query Processing	2007	VLDB	5.093636e-05
12,731	Modeling and Querying Multidimensional Data Sources in Siebel Analytics: A Federated Relational System	2005	SIGMOD	5.093636e-05
12,754	QoS-based Data Access and Placement for Federated Systems	2005	VLDB	5.093636e-05

Outgoing Citations (Sorted by Pagerank)

Showing 6 of 6 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
110	Extensible/Rule Based Query Rewrite Optimization in Starburst	1992	SIGMOD	0.0003309592
171	Optimizing Queries across Diverse Data Sources	1997	VLDB	0.00027363924
180	Schema Mapping as Query Discovery	2000	VLDB	0.00026772368
457	Don’t Scrap It, Wrap It! A Wrapper Architecture for Legacy Data Sources	1997	VLDB	0.00018120468
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

Semantically Similar Papers

#	Overall Rank	Paper	Year	Venue
1	14,292	DB2 Common Server: Technology, Progress, & Directions	1995	VLDB
2	5,882	Heterogeneous Database Query Optimization in DB2 Universal DataJoiner	1998	VLDB
3	4,771	Loading a Cache with Query Results	1999	VLDB
4	182	Federated Database Systems for Managing Distributed, Heterogeneous, and Autonomous Databases	1991	VLDB
5	3,112	The Garlic Project	1996	SIGMOD
6	170	Combining Fuzzy Information from Multiple Systems	1996	PODS
7	12,754	QoS-based Data Access and Placement for Federated Systems	2005	VLDB
8	402	Fuzzy Queries in Multimedia Database Systems	1998	PODS
9	5,659	POP/FED: Progressive Query Optimization for Federated Queries in DB2	2006	VLDB
10	171	Optimizing Queries across Diverse Data Sources	1997	VLDB