Background Back in the early 1990s when I first started working on database language architecture, DB2 for Linux, Unix, and Windows was a new DB2 database manager (I believe we called it DB2 for common servers back then) and making a big jump in the SQL that it supported along with implementing the Starburst compiler with the research team from the Almaden Research Center. During that time, we started to make SQL more user-extensible with user-defined objects for procedures, functions and data types. The first kind of user-defined data type was...
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