abstract types
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@ -1461,9 +1461,9 @@ a database toolkit, new types are defined when the database server is
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compiled. In today's object-relational database systems, new types
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are defined at runtime. Each approach has its advantages. However,
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both types of systems aim to extend a high-level data model with new
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abstract data types, and are quite limited in the range of new
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applications they support, essentially queries over sets of a wider
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range of elements.~\rcs{fix wording}
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abstract data types, and are thus limited in the range of new
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applications they support, which remain essentially queries over sets.
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\subsubsection{Modular databases}
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