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Systems and methods of optimizing database queries for efficient delivery of query data subsets
Systems and methods of optimizing database queries for efficient delivery of query data subsets
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机译：优化数据库查询以有效传递查询数据子集的系统和方法
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摘要
Queries are optimized according to a first optimization mode by generating execution plans and selecting the lowest cost plan. Inputs optimized according to the first optimization mode, to database operations with input parameters that are inconsistent with the first optimization mode, are replaced with equivalent inputs optimized according to a second optimization mode, the second optimization mode being consistent with the input parameter. Blocking operations are eliminated from queries using a cost-based approach.
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