QUERY OPTIMIZER FOR CPU UTILIZATION AND CODE REFACTORING

Methods, systems, apparatuses, and computer program products are provided for increasing an efficiency of queries in program code. A plurality of queries is detected in program code. A laziness is extended by which the queries are evaluated in the program code. The queries are decomposed into a plurality of query components. A ruleset that includes a plurality of rules is applied to the query components to generate a functionally equivalent query set to the plurality of queries that evaluates more efficiently relative to the plurality of queries. 提供了种用于提高程序代码中的查询效率的方法、系统、设备和计算机程序产品。在程序代码中检测到多个查询。通过其评估程序代码中的查询的惰性被扩展。查询被分解为多个查询部件。包括多个规则的规则集被应用于查询部件，以生成对多个查询的功能上等效的查询集，该功能上等效的查询集相对于多个查询更高效地评估。