Capabilities-Based Query Rewriting in Mediator Systems

@article{Papakonstantinou1998CapabilitiesBasedQR,
  title={Capabilities-Based Query Rewriting in Mediator Systems},
  author={Yannis Papakonstantinou and Ashish Gupta and Laura M. Haas},
  journal={Distributed and Parallel Databases},
  year={1998},
  volume={6},
  pages={73-110}
}
Users today are struggling to integrate a broad range of information sources providing different levels of query capabilities. Currently, data sources with different and limited capabilities are accessed either by writing rich functional wrappers for the more primitive sources, or by dealing with all sources at a “lowest common denominator”. This paper explores a third approach, in which a mediator ensures that sources receive queries they can handle, while still taking advantage of all of the… CONTINUE READING

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