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This document describes the definition and use of polymorphic table functions in SQL.

The Report discusses the following features of the SQL Language:

— The processing model of polymorphic table functions in the context of SQL.

— The creation and maintenance of polymorphic table functions.

— Issues related to methods of implementing polymorphic table functions.

— How polymorphic table functions are invoked by application programs.

— Issues concerning compilation, optimization, and execution of polymorphic table functions.