Weighted Hypertree Decompositions and Optimal Query Plans
Summary: Weighted hypertree decompositions: hypertree decompositions annotated with cost functions to combine structural and quantitative information (cardinalities/selectivities); minimal-weight decompositions are generally intractable but become polynomial-time (and sometimes parallel) under mild cost/target-tree restrictions. Use a query-cost function to derive optimal logical query plans and show experiments where this hybrid optimizer outperforms a commercial DBMS on large multi-join queries. (summarized by gpt-5-mini on Feb 09 2026)
Incoming Non-self Citations Over Time
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Incoming Citations (Sorted by Pagerank)
Showing 4 of 4 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 626 | Generalized Hypertree Decompositions: NP-Hardness and Tractable Variants | 2007 | PODS | 0.00018973823 |
| 2,063 | Counting Solutions to Conjunctive Queries: Structural and Hybrid Tractability | 2014 | PODS | 9.6447857e-05 |
| 2,829 | Computing Cores for Data Exchange: New Algorithms and Practical Solutions | 2005 | PODS | 8.0546963e-05 |
| 5,828 | Topology Dependent Bounds For FAQs | 2019 | PODS | 5.3113542e-05 |
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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 |
|---|---|---|---|---|
| 297 | Complexity of Answering Queries Using Materialized Views | 1998 | PODS | 0.00028596715 |
| 325 | The History of Histograms (abridged) | 2003 | VLDB | 0.00027378328 |
| 407 | Conjunctive-Query Containment and Constraint Satisfaction | 1998 | PODS | 0.00024004562 |
| 431 | On the Complexity of Database Queries (Extended Abstract) | 1997 | PODS | 0.00023370207 |
| 4,977 | Constraint Satisfaction and Database Theory: a Tutorial | 2000 | PODS | 5.7881576e-05 |
| 5,553 | On the Complexity of Join Predicates | 2001 | PODS | 5.439162e-05 |
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