Invention Grant
- Patent Title: Calculation engine optimizations for join operations utilizing automatic detection of forced constraints
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Application No.: US15150371Application Date: 2016-05-09
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Publication No.: US10713244B2Publication Date: 2020-07-14
- Inventor: Julian Schwing , Johannes Merx , Christoph Weyerhaeuser
- Applicant: SAP SE
- Applicant Address: DE Walldorf
- Assignee: SAP SE
- Current Assignee: SAP SE
- Current Assignee Address: DE Walldorf
- Agency: Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
- Main IPC: G06F16/2453
- IPC: G06F16/2453

Abstract:
A calculation engine of a database management system is described. In some implementations, the calculation engine receives a calculation scenario including a plurality of join operations defining an intersection between at least two nodes. The calculation engine optimizes a first join which is of a certain cardinality, and for which no attributes are requested, other than a join attribute. The optimization includes determining whether a static filter is present for a first node or a second node of the first join, and pruning the first node and/or the second node from the hierarchical join when the attribute is not requested from the first node or the second node and/or when the static filter is not present for the first node or the second node. Related systems, methods, and articles of manufacture are also described.
Public/Granted literature
- US20170322952A1 Calculation Engine Optimizations for Join Operations Utilizing Automatic Detection of Forced Constraints Public/Granted day:2017-11-09
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