Parallelizing SQL user defined transformation functions
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United States of America Patent
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Jan 5, 2021
Grant Date -
Nov 24, 2016
app pub date -
Mar 10, 2014
filing date -
Mar 10, 2014
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Abstract
Example embodiments relate to parallelizing structured query language (SQL) user defined transformation functions. In example embodiments, a subquery of a query is received from a query engine, where each of the subqueries is associated with a distinct magic number in a magic table. A user defined transformation function that includes local, role-based functionality may then be executed, where the magic number triggers parallel execution of the user defined transformation function. At this stage, the results of the user defined transformation function are sent to the query engine, where the query engine unions the results with other results that are obtained from the other database nodes.
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