EVALUATION OF DATABASE QUERY PLAN ROBUSTNESS LANDMARKS USING OPERATOR MAPS OR QUERY MAPS
First Claim
Patent Images
1. A computer-implemented system comprising:
- logic that creates a performance map evaluating performance of an implementation of a database engine operator or query plan during execution under actual conditions, the logic measuring and mapping performance for a selected range of runtime conditions comprising data characteristics.
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Abstract
Computer-implemented systems and associated operating methods create and use an operator map to identify and evaluate database query plan robustness landmarks. The computer-implemented system comprises logic that creates a map evaluating performance of an implementation of a database engine operator during execution under actual operating conditions. The logic measures and maps performance for a selected range of runtime conditions including resource availability and data characteristics.
53 Citations
15 Claims
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1. A computer-implemented system comprising:
logic that creates a performance map evaluating performance of an implementation of a database engine operator or query plan during execution under actual conditions, the logic measuring and mapping performance for a selected range of runtime conditions comprising data characteristics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer-implemented system comprising:
logic that accesses at least one performance map created by acquisition during execution of an implementation of a database engine operator under actual conditions, the logic measuring and mapping performance for a selected range of runtime conditions to identify regions under which performance of a selected operator implementation degrades in a manner different from a predetermined proper manner, the logic analyzing the maps to identify landmarks in relation to a selected query plan wherein query performance degrades in a predetermined manner. - View Dependent Claims (11, 12, 13)
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14. A computer-executed method of processing data comprising:
evaluating database query plan robustness landmarks comprising; creating a performance map evaluating performance of an implementation of a database engine operator during execution under actual conditions; and measuring and mapping performance for a selected range of runtime conditions comprising data characteristics. - View Dependent Claims (15)
Specification