Alchemy: A Query Optimization Framework for Oblivious SQL
Summary: Alchemy is a query-optimization framework for oblivious SQL that reduces circuit complexity for secure multiparty computation by exploiting schema metadata and query structure. It combines rewrites, cardinality bounds, bushy plans and a fine-grained cost model (with sort reuse) to yield up to 100× TPC-H speedups and generalizes to other secure computation settings. (summarized by gpt-5-mini on Feb 09 2026)
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Authors
- 1. Donghyun Sohn
- 2. Kelly Jiang
- 3. Nicolas Hammer
- 4. Jennie Rogers
Incoming Citations (Sorted by Pagerank)
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Outgoing Citations (Sorted by Pagerank)
Showing 10 of 10 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 83 | Privacy Integrated Queries: An Extensible Platform for Privacy-Preserving Data Analysis | 2009 | SIGMOD | 0.00053910987 |
| 89 | Common Expression Analysis in Database Applications | 1982 | SIGMOD | 0.00052299473 |
| 1,291 | SMCQL: Secure Querying for Federated Databases | 2017 | VLDB | 0.00012771034 |
| 1,740 | PrivateSQL: A Differentially Private SQL Query Engine | 2019 | VLDB | 0.00010696383 |
| 2,549 | Efficient Oblivious Database Joins | 2020 | VLDB | 8.5572389e-05 |
| 2,914 | Quantifying TPC-H Choke Points and Their Optimizations | 2020 | VLDB | 7.9197583e-05 |
| 3,022 | Secure Yannakakis: Join-Aggregate Queries over Private Data | 2021 | SIGMOD | 7.6942462e-05 |
| 3,150 | The MemSQL Query Optimizer: A modern optimizer for real-time analytics in a distributed database | 2016 | VLDB | 7.4765759e-05 |
| 6,256 | ZKSQL: Verifiable and Efficient Query Evaluation with Zero-Knowledge Proofs | 2023 | VLDB | 5.1317554e-05 |
| 11,298 | RESCU-SQL: Oblivious Querying for the Zero Trust Cloud | 2023 | VLDB | 4.1905499e-05 |
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| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 6,256 | ZKSQL: Verifiable and Efficient Query Evaluation with Zero-Knowledge Proofs | 2023 | VLDB | 5.1317554e-05 |
| 9,018 | OBSCURE: Information-Theoretic Oblivious and Verifiable Aggregation Queries | 2019 | VLDB | 4.4052614e-05 |
| 1,740 | PrivateSQL: A Differentially Private SQL Query Engine | 2019 | VLDB | 0.00010696383 |
| 10,973 | Relational Algorithms for Top-k Query Evaluation | 2024 | SIGMOD | 4.1905499e-05 |
| 12,272 | Building Disclosure Risk Aware Query Optimizers for Relational Databases | 2010 | VLDB | 4.1905499e-05 |
| 1,291 | SMCQL: Secure Querying for Federated Databases | 2017 | VLDB | 0.00012771034 |
| 6,969 | Architecting a Differentially Private SQL Engine | 2019 | CIDR | 4.8749348e-05 |
| 6,902 | SecretFlow-SCQL: A Secure Collaborative Query pLatform | 2024 | VLDB | 4.8878659e-05 |
| 2,651 | Shrinkwrap: Efficient SQL Query Processing in Differentially Private Data Federations | 2019 | VLDB | 8.3680222e-05 |
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