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AssigneeInternational Business Machines Corporation
InventorsPawel Cichosz, Mieczyslaw Klopotek, Krzysztof Skowronski
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An exemplary computer implemented method for processing data in a database management system implemented on a network of two or more nodes is disclosed. The method includes receiving a query referencing first and second user-defined table functions and a table distributed across the two or more nodes. The first user-defined table function is executed on each of the two or more nodes by processing records of the table residing on the respective nodes. A data sample is generated per node as a result of executing the first user-defined table function on each of the two or more nodes. The generated data samples are stored in a selected set of nodes. The second user-defined table function is executed on each of the selected set of nodes by processing records of the data samples residing on the respective nodes of the selected set of nodes to compute a user-defined aggregate.
A computer implemented method for processing data in a database management system implemented on a network of two or more nodes, each of the two or more nodes comprising a processor, a storage device, and a memory, the method comprising:
A system for processing data in a database management system implemented on a network of two or more nodes, each of the two or more nodes comprising a processor, a storage device, and a memory, wherein the two or more processors of the two or more nodes are configured to:
A computer program product configured to operate in a database management system implemented on a network of multiple nodes, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform a method comprising:
Dependencies are inferred from the claim text.