公开(公告)号：US11243958B2

公开(公告)日：2022-02-08

申请号：US15058590

申请日：2016-03-02

申请人： Teradata US, Inc.

发明人： Xin Tang ,  James Shau ,  Robert Wehrmeister ,  Daniel T. Yu

IPC分类号： G06F17/00 ,  G06F16/2457 ,  G06F16/2458

摘要： Disclosed are systems and methods for implementing contract-based polymorphic and parallelizable user-defined scalar and aggregate functions. The systems and methods can include receiving a query including a plurality of user-defined functions, parsing the query into a plurality of nodes (e.g., basic operation unit or atomic operator), generating an execution plan that minimizes data transfer between the plurality of nodes, and executing the plan in a distributed environment. Each of the plurality of user-defined functions can correspond to one of a plurality of nodes.