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» Polymorphic Type Inference for the Relational Algebra
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LICS
2010
IEEE
13 years 4 months ago
A Generic Operational Metatheory for Algebraic Effects
—We provide a syntactic analysis of contextual preorder and equivalence for a polymorphic programming language with effects. Our approach applies uniformly across a range of alge...
Patricia Johann, Alex Simpson, Janis Voigtlän...
ICDT
2010
ACM
149views Database» more  ICDT 2010»
13 years 10 months ago
Mapping Polymorphism
We examine schema mappings from a type-theoretic perspective and aim to facilitate and formalize the reuse of mappings. Starting with the mapping language of Clio, we present a ty...
Ryan Wisnesky, Mauricio Hernandez, Lucian Popa
JACM
2007
84views more  JACM 2007»
13 years 5 months ago
Polymorphic higher-order recursive path orderings
This paper extends the termination proof techniques based on reduction orderings to a higher-order setting, by defining a family of recursive path orderings for terms of a typed ...
Jean-Pierre Jouannaud, Albert Rubio
SIGMOD
1993
ACM
140views Database» more  SIGMOD 1993»
13 years 9 months ago
Second-Order Signature: A Tool for Specifying Data Models, Query Processing, and Optimization
Abstract: We propose a framework for the specification of extensible database systems. A particular goal is to implement a software component for parsing and rule-based optimizatio...
Ralf Hartmut Güting
TLDI
2010
ACM
218views Formal Methods» more  TLDI 2010»
14 years 2 months ago
Pointwise generalized algebraic data types
In the GADT (Generalized Algebraic Data Types) type system, a pattern-matching branch can draw type information from both the scrutinee type and the data constructor type. Even th...
Chuan-kai Lin, Tim Sheard