The POSTGRES Data Model
Technical rept. 7 Aug 1984-6 Aug 1987
CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
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This paper describes the data model for POSTGRES, a next-generation extensible database management system being developed at the University of California StR86. The data model is a relational model that has been extended with abstract data types, data of type procedure, and attribute and procedure inheritance. These mechanisms can be used to simulate a wide variety of semantic and object-oriented data modeling constructs including aggregation and generalization, complex objects with shared subobjects, and attributes that reference tuples in other relations.
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