Exploiting Constraint-Like Data Characterizations in Query Optimization
Summary: Soft constraints in DB2: constraint-like data characterizations mined from data used by the optimizer. Absolute soft constraints enable rewrite and cost estimation; statistical soft constraints affect only cost estimation, capturing evolving, non-enforceable patterns. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Parke Godfrey
- 2. Jarek Gryz
- 3. Calisto Zuzarte
Incoming Citations (Sorted by Pagerank)
Showing 5 of 5 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 492 | Query by Output | 2009 | SIGMOD | 0.00021974699 |
| 2,837 | Correlation Maps: A Compressed Access Method for Exploiting Soft Functional Dependencies | 2009 | VLDB | 8.0414149e-05 |
| 2,865 | Designing Succinct Secondary Indexing Mechanism by Exploiting Column Correlations | 2019 | SIGMOD | 7.9862595e-05 |
| 6,137 | Detecting Metadata-Related Logic Bugs in Database Systems via Raw Database Construction | 2024 | VLDB | 5.1916986e-05 |
| 10,603 | Detecting Schema-Related Logic Bugs in Relational DBMSs via Equivalent Database Construction | 2025 | VLDB | 4.1945683e-05 |
Previous
Page 1 / 1
Next
Outgoing Citations (Sorted by Pagerank)
Showing 0 of 0 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|
Previous
Page 1 / 1
Next
Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 4,793 | Toward Practical Constraint Databases | 1993 | VLDB | 5.9164359e-05 |
| 8,010 | Compiling Query Constraints | 1994 | PODS | 4.6065603e-05 |
| 1,578 | Constraint Checking with Partial Information | 1994 | PODS | 0.00011284233 |
| 9,181 | Using Integrity Constraints to Provide Intensional Answers to Relational Queries | 1989 | VLDB | 4.3813771e-05 |
| 684 | Towards a Robust Query Optimizer: A Principled and Practical Approach | 2005 | SIGMOD | 0.00018179769 |
| 4,919 | Optimization of Constrained Frequent Set Queries with 2-variable Constraints | 1999 | SIGMOD | 5.8256934e-05 |
| 4,408 | Implementation of Two Semantic Query Optimization Techniques in DB2 Universal Database | 1999 | VLDB | 6.2109612e-05 |
| 790 | Exploiting Statistics on Query Expressions for Optimization | 2002 | SIGMOD | 0.0001663283 |
| 12,800 | Enhancing Database Correctness: A Statistical Approach | 1995 | SIGMOD | 4.1945683e-05 |
| 2,936 | Querying with Access Patterns and Integrity Constraints | 2015 | VLDB | 7.8554347e-05 |