Generic multiset programming for language-integrated querying

  • Authors:
  • Fritz Henglein;Ken Friis Larsen

  • Affiliations:
  • University of Copenhagen, Copenhagen, Denmark;University of Copenhagen, Copenhagen, Denmark

  • Venue:
  • Proceedings of the 6th ACM SIGPLAN workshop on Generic programming
  • Year:
  • 2010

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Abstract

This paper demonstrates how relational algebraic programming based on efficient symbolic representations of multisets and operations on them can be applied to the query sublanguage of SQL in a type-safe fashion. In essence, it provides a library for naïve programming with multisets in a generalized SQL-style fashion, but avoids many cases of asymptotically inefficient nested iteration through cross-products.