Dynamic query scheduling in data integration systems

• Published in: Proceedings of 16th International Conference on Data Engineering (Cat. No.00CB37073) pp. 425 - 434
• Main Authors: Bouganim, L., Fabret, F., Mohan, C., Valduriez, P.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2000
• Subjects: Costs; Decision support systems; Delay effects; Dynamic scheduling; Engines; Fiber reinforced plastics; Query processing; Relational databases; Runtime

Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the memory available at run-time may be insufficient, or data delivery rate can be unpredictable. We address the problem of unpr...