### Abstract

Pipelined filter ordering is a central problem in database query optimization, and has received renewed attention recently in the context of environments such as the web, continuous high-speed data streams and sensor networks. We present algorithms for two natural extensions of the classical pipelined filter ordering problem: (1) a distributional type problem where the filters run in parallel and the goal is to maximize throughput, and (2) an adversarial type problem where the goal is to minimize the expected value of multiplicative regret. We show that both problems can be solved using similar flow algorithms, which find an optimal ordering scheme in time O(n^{2}), where n is the number of filters. Our algorithm for (1) improves on an earlier O(n^{3} log n) algorithm of Kodialam.

Original language | English (US) |
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Title of host publication | Proceedings of the Twenty-Fifth ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2006 |

Pages | 193-202 |

Number of pages | 10 |

DOIs | |

State | Published - 2006 |

Event | 25th ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2006 - Chicago, IL, United States Duration: Jun 26 2006 → Jun 28 2006 |

### Other

Other | 25th ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2006 |
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Country | United States |

City | Chicago, IL |

Period | 6/26/06 → 6/28/06 |

### Fingerprint

### Keywords

- Flow algorithms
- Pipelined filter ordering
- Query optimization
- Selection ordering

### ASJC Scopus subject areas

- Software

### Cite this

*Proceedings of the Twenty-Fifth ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2006*(pp. 193-202) https://doi.org/10.1145/1142351.1142379

**Flow algorithms for two pipelined filter ordering problems.** / Condon, Anne; Deshpande, Amol; Hellerstein, Lisa; Wu, Ning.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Proceedings of the Twenty-Fifth ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2006.*pp. 193-202, 25th ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2006, Chicago, IL, United States, 6/26/06. https://doi.org/10.1145/1142351.1142379

}

TY - GEN

T1 - Flow algorithms for two pipelined filter ordering problems

AU - Condon, Anne

AU - Deshpande, Amol

AU - Hellerstein, Lisa

AU - Wu, Ning

PY - 2006

Y1 - 2006

N2 - Pipelined filter ordering is a central problem in database query optimization, and has received renewed attention recently in the context of environments such as the web, continuous high-speed data streams and sensor networks. We present algorithms for two natural extensions of the classical pipelined filter ordering problem: (1) a distributional type problem where the filters run in parallel and the goal is to maximize throughput, and (2) an adversarial type problem where the goal is to minimize the expected value of multiplicative regret. We show that both problems can be solved using similar flow algorithms, which find an optimal ordering scheme in time O(n2), where n is the number of filters. Our algorithm for (1) improves on an earlier O(n3 log n) algorithm of Kodialam.

AB - Pipelined filter ordering is a central problem in database query optimization, and has received renewed attention recently in the context of environments such as the web, continuous high-speed data streams and sensor networks. We present algorithms for two natural extensions of the classical pipelined filter ordering problem: (1) a distributional type problem where the filters run in parallel and the goal is to maximize throughput, and (2) an adversarial type problem where the goal is to minimize the expected value of multiplicative regret. We show that both problems can be solved using similar flow algorithms, which find an optimal ordering scheme in time O(n2), where n is the number of filters. Our algorithm for (1) improves on an earlier O(n3 log n) algorithm of Kodialam.

KW - Flow algorithms

KW - Pipelined filter ordering

KW - Query optimization

KW - Selection ordering

UR - http://www.scopus.com/inward/record.url?scp=34250677320&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250677320&partnerID=8YFLogxK

U2 - 10.1145/1142351.1142379

DO - 10.1145/1142351.1142379

M3 - Conference contribution

AN - SCOPUS:34250677320

SN - 1595933182

SN - 9781595933188

SP - 193

EP - 202

BT - Proceedings of the Twenty-Fifth ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 2006

ER -