会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Query processing with specialized query operators
    • 使用专门的查询运算符进行查询处理
    • US08713048B2
    • 2014-04-29
    • US12144670
    • 2008-06-24
    • Erik MeijerMads TorgersenAnders HejlsbergMatthew J. WarrenJohn W. Dyer
    • Erik MeijerMads TorgersenAnders HejlsbergMatthew J. WarrenJohn W. Dyer
    • G06F7/00G06F17/30
    • G06F17/30436
    • Queries targeting various data sources are processed in a query processing pipeline that parses the query into a set of operations (e.g., an expression tree or a translated SQL query) using a set of query operators, each handling a particular type of operation. The query operators are often designed in an unspecialized manner, such that each query operator handles one query operation in an atomic, generic manner (e.g., sorting generic data items for an ORDER BY clause.) More efficient queries may be devised by including specialized queries that operate in common but special cases, such as a sorting of a particular data type (e.g., a floating-point number sort) or a sequence of two or more operations that are often performed together (e.g., a WHERE test of an attribute followed by a SELECT of the same attribute.) The use of specialized operators may result in the formulation of more efficient queries.
    • 定位各种数据源的查询在查询处理流水线中处理,该查询处理流水线使用一组查询运算符(每个处理特定类型的操作)将查询解析为一组操作(例如,表达式树或翻译的SQL查询)。 查询运算符通常以非特定方式进行设计,使得每个查询运算符以原子,通用方式处理一个查询操作(例如,排序ORDER BY子句的通用数据项)。可以通过包括专门的查询来设计更有效的查询 其在常见但特殊的情况下操作,诸如特定数据类型的排序(例如,浮点数排序)或经常一起执行的两个或更多个操作的序列(例如,跟随的属性的WHERE测试 通过具有相同属性的SELECT)。使用专门的运算符可能会导致更有效的查询的编制。
    • 4. 发明申请
    • QUERY PROCESSING WITH SPECIALIZED QUERY OPERATORS
    • 具有专业查询操作员的查询处理
    • US20090319499A1
    • 2009-12-24
    • US12144670
    • 2008-06-24
    • Erik MeijerMads TorgersenAnders HejlsbergMatthew J. WarrenJohn W. Dyer
    • Erik MeijerMads TorgersenAnders HejlsbergMatthew J. WarrenJohn W. Dyer
    • G06F17/30
    • G06F17/30436
    • Queries targeting various data sources are processed in a query processing pipeline that parses the query into a set of operations (e.g., an expression tree or a translated SQL query) using a set of query operators, each handling a particular type of operation. The query operators are often designed in an unspecialized manner, such that each query operator handles one query operation in an atomic, generic manner (e.g., sorting generic data items for an ORDER BY clause.) More efficient queries may be devised by including specialized queries that operate in common but special cases, such as a sorting of a particular data type (e.g., a floating-point number sort) or a sequence of two or more operations that are often performed together (e.g., a WHERE test of an attribute followed by a SELECT of the same attribute.) The use of specialized operators may result in the formulation of more efficient queries.
    • 定位各种数据源的查询在查询处理流水线中处理,该查询处理流水线使用一组查询运算符(每个处理特定类型的操作)将查询解析为一组操作(例如,表达式树或翻译的SQL查询)。 查询运算符通常以非特定方式进行设计,使得每个查询运算符以原子,通用方式处理一个查询操作(例如,排序ORDER BY子句的通用数据项)。可以通过包括专门的查询来设计更有效的查询 其在常见但特殊的情况下操作,诸如特定数据类型的排序(例如,浮点数排序)或经常一起执行的两个或更多个操作的序列(例如,跟随的属性的WHERE测试 通过具有相同属性的SELECT)。使用专门的运算符可能会导致更有效的查询的编制。