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QPipe: A Simultaneously Pipelined Relational Query Engine

Summary: On-demand simultaneous pipelining (OSP) enables proactive sharing of operator work across concurrent queries. QPipe, an operator-centric engine with per-operator micro-engines, uses OSP for cross-query data sharing, yielding ~2x speedup on TPC-H. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
3713
Venue
SIGMOD
Year
2005
Pagerank
0.00019520728
Overall Rank
383 | 97.38%
DOI
10.1145/1066157.1066201

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{harizopoulos_sigmod05,
        title = {{QPipe: A Simultaneously Pipelined Relational Query Engine}},
        author = {Harizopoulos, Stavros and Shkapenyuk, Vladislav and Ailamaki, Anastassia},
        series = {{SIGMOD} '05},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/1066157.1066201},
        url = {https://dl.acm.org/doi/10.1145/1066157.1066201},
        year = {2005}
}

Incoming Citations (Sorted by Pagerank)

Showing 50 of 59 citing papers.

Rank Citing Paper Year Venue Pagerank
241 Morsel-Driven Parallelism: A NUMA-Aware Query Evaluation Framework for the Many-Core Age 2014 SIGMOD 0.00023654664
256 Data-Oriented Transaction Execution 2010 VLDB 0.00023172982
259 Database Cracking 2007 CIDR 0.00023119313
345 Column-Stores vs. Row-Stores: How Different Are They Really? 2008 SIGMOD 0.00020656723
630 Performance Tradeoffs in Read-Optimized Databases 2006 VLDB 0.00015591796
670 SharedDB: Killing One Thousand Queries With One Stone 2012 VLDB 0.00015157572
696 Main-Memory Scan Sharing For Multi-Core CPUs 2008 VLDB 0.00014891322
721 Database Architecture Evolution: Mammals Flourished long before Dinosaurs became Extinct 2009 VLDB 0.00014631814
761 Cooperative Scans: Dynamic Bandwidth Sharing in a DBMS 2007 VLDB 0.00014254351
803 MRShare: Sharing Across Multiple Queries in MapReduce 2010 VLDB 0.00013899943
922 Data Processing on FPGAs 2009 VLDB 0.00013207382
1,022 A Scalable, Predictable Join Operator for Highly Concurrent Data Warehouses 2009 VLDB 0.00012602841
1,024 The DataPath System: A Data-Centric Analytic Processing Engine for Large Data Warehouses 2010 SIGMOD 0.0001258839
1,431 Towards Scalable Dataframe Systems 2020 VLDB 0.00010807221
1,879 Predictable Performance for Unpredictable Workloads 2009 VLDB 9.5613416e-05
2,276 Shared Workload Optimization 2014 VLDB 8.8196376e-05
2,679 Database Servers on Chip Multiprocessors: Limitations and Opportunities 2007 CIDR 8.2675008e-05
2,706 Major Technical Advancements in Apache Hive 2014 SIGMOD 8.2287564e-05
2,713 Robust Query Processing in Co-Processor-accelerated Databases 2016 SIGMOD 8.2122726e-05
2,848 GPL: A GPU-based Pipelined Query Processing Engine 2016 SIGMOD 8.0538815e-05
3,270 Scheduling Shared Scans of Large Data Files 2008 VLDB 7.5796338e-05
3,598 Access Path Selection in Main-Memory Optimized Data Systems: Should I Scan or Should I Probe? 2017 SIGMOD 7.2718988e-05
4,085 Deployment of Query Plans on Multicores 2015 VLDB 6.9149518e-05
4,137 Optimizing I/O for Big Array Analytics 2012 VLDB 6.8783832e-05
4,190 QuickFOIL: Scalable Inductive Logic Programming 2015 VLDB 6.8431849e-05
4,330 Sharing Data and Work Across Concurrent Analytical Queries 2013 VLDB 6.7563122e-05
4,508 To Share or Not to Share? 2007 VLDB 6.6561159e-05
4,639 MQJoin: Efficient Shared Execution of Main-Memory Joins 2016 VLDB 6.5918791e-05
4,816 A Top-Down Approach to Achieving Performance Predictability in Database Systems 2017 SIGMOD 6.4949878e-05
5,039 Holistic Indexing in Main-memory Column-stores 2015 SIGMOD 6.3909067e-05
5,612 Cache-Efficient Fork-Processing Patterns on Large Graphs 2021 SIGMOD 6.1501992e-05
5,686 OLTPShare: The Case for Sharing in OLTP Workloads 2018 VLDB 6.1220514e-05
5,701 Lemo: A Cache-Enhanced Learned Optimizer for Concurrent Queries 2023 SIGMOD 6.1167049e-05
5,947 Revisiting Reuse in Main Memory Database Systems 2017 SIGMOD 6.0323707e-05
6,482 AStream: Ad-hoc Shared Stream Processing 2019 SIGMOD 5.8668582e-05
6,572 A Morsel-Driven Query Execution Engine for Heterogeneous Multi-Cores 2019 VLDB 5.8373744e-05
6,663 Cheap Data Analytics using Cold Storage Devices 2016 VLDB 5.8091195e-05
6,684 CrocodileDB: Efficient Database Execution through Intelligent Deferment 2020 CIDR 5.8036476e-05
6,692 From Cooperative Scans to Predictive Buffer Management 2012 VLDB 5.8005501e-05
6,835 GPU-accelerated data management under the test of time 2020 CIDR 5.7584924e-05
6,891 Increasing Buffer-Locality for Multiple Index Based Scans through Intelligent Placement and Index Scan Speed Control 2007 VLDB 5.7447663e-05
7,213 Scalable Multi-Query Execution using Reinforcement Learning 2021 SIGMOD 5.670422e-05
7,579 Resource-efficient Shared Query Execution via Exploiting Time Slackness 2021 SIGMOD 5.592546e-05
8,072 Operational Analytics Data Management Systems 2016 VLDB 5.4933919e-05
8,315 ADDICT: Advanced Instruction Chasing for Transactions 2014 VLDB 5.4553606e-05
8,580 Accelerating Pathology Image Data Cross-Comparison on CPU-GPU Hybrid Systems 2012 VLDB 5.4082911e-05
8,905 TensorSocket: Shared Data Loading for Deep Learning Training 2026 SIGMOD 5.3483178e-05
9,288 How to Stop Under-Utilization and Love Multicores 2014 SIGMOD 5.2912652e-05
9,299 Optimizing Complex Queries with Multiple Relation Instances 2008 SIGMOD 5.2895587e-05
9,598 Online Optimization and Fair Costing for Dynamic Data Sharing in a Cloud Data Market 2014 SIGMOD 5.2494989e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 20 of 20 cited papers.

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

Rank Cited Paper Year Venue Pagerank
25 NiagaraCQ: A Scalable Continuous Query System for Internet Databases 2000 SIGMOD 0.00054667018
39 Efficiently Updating Materialized Views 1986 SIGMOD 0.00047309646
87 Automated Selection of Materialized Views and Indexes for SQL Databases 2000 VLDB 0.00035281619
128 Efficient and Extensible Algorithms for Multi Query Optimization 2000 SIGMOD 0.0003072825
135 An Evaluation of Buffer Management Strategies for Relational Database Systems 1985 VLDB 0.00030209257
151 Efficient Mid-Query Re-Optimization of Sub-Optimal Query Execution Plans 1998 SIGMOD 0.00029161879
153 Common Expression Analysis in Database Applications 1982 SIGMOD 0.00029032276
193 Continuously Adaptive Continuous Queries over Streams 2002 SIGMOD 0.00025964286
231 The LRU-K Page Replacement Algorithm For Database Disk Buffering 1993 SIGMOD 0.00023846898
299 Shoring Up Persistent Applications 1994 SIGMOD 0.00022084669
409 Semantic Data Caching and Replacement 1996 VLDB 0.00018985783
637 2Q: A Low Overhead High Performance Buffer Management Replacement Algorithm 1994 VLDB 0.0001547341
822 Pipelining in Multi-Query Optimization 2001 PODS 0.00013807229
832 Streaming Queries over Streaming Data 2002 VLDB 0.00013736125
932 Buffering Database Operations for Enhanced Instruction Cache Performance 2004 SIGMOD 0.00013119305
1,933 Red Brick Warehouse: A Read-Mostly RDBMS for Open SMP Platforms 1994 SIGMOD 9.4642118e-05
2,394 A Case for Staged Database Systems 2003 CIDR 8.6362653e-05
2,528 The Case for Enhanced Abstract Data Types 1997 VLDB 8.4620669e-05
6,350 Green Query Optimization: Taming Query Optimization Overheads through Plan Recycling 2004 VLDB 5.9048959e-05
7,724 The Next Database Revolution 2004 SIGMOD 5.5584152e-05
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