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1. 发明授权

US08190598B2 Skew-based costing for database queries 有权
标题翻译：数据库查询的基于偏倚的成本计算
公开(公告)号：US08190598B2
公开(公告)日：2012-05-29
申请号：US12261058
申请日：2008-10-30
申请人： Awny K Al-Omari , Ramakumar Kosuru , Renu Varshneya , Robert L. Wall
发明人： Awny K Al-Omari , Ramakumar Kosuru , Renu Varshneya , Robert L. Wall
IPC分类号： G06F17/30
CPC分类号： G06F17/30433 , G06F17/30445
摘要： One embodiment is a method that determines skew to predict costs for query plans for a database query. The method selects a query plan that accounts for the skew to evenly distribute processing load among multiple processors and then executes the query with the selected query plan.
摘要翻译：一个实施例是确定倾斜以预测数据库查询的查询计划的成本的方法。该方法选择考虑偏差的查询计划，以平均分配多个处理器之间的处理负载，然后使用所选查询计划执行查询。

2. 发明申请

US20130226941A1 SYSTEM AND METHOD FOR CLASSIFYING SIGNALS USING THE BLOOM FILTER 审中-公开
标题翻译：使用BLOOM过滤器分类信号的系统和方法
公开(公告)号：US20130226941A1
公开(公告)日：2013-08-29
申请号：US13407540
申请日：2012-02-28
申请人： Ramakumar Kosuru , Choudur Lakshminarayan
发明人： Ramakumar Kosuru , Choudur Lakshminarayan
IPC分类号： G06F17/30
CPC分类号： G06F16/35
摘要： The present disclosure generally relates to data processing. Bloom filters are used to process data at high speed. A Bloom filter that is initialized based on a source string can be used to quickly determine the similarity between the source string and a query string.
摘要翻译：本公开通常涉及数据处理。 Bloom过滤器用于高速处理数据。可以使用基于源字符串初始化的Bloom过滤器来快速确定源字符串和查询字符串之间的相似性。

3. 发明申请

US20130226972A1 METHODS AND SYSTEMS FOR PROCESSING DATA ARRAYS USING BLOOM FILTERS 审中-公开
标题翻译：使用BLOOM过滤器处理数据阵列的方法和系统
公开(公告)号：US20130226972A1
公开(公告)日：2013-08-29
申请号：US13406478
申请日：2012-02-27
申请人： Ramakumar Kosuru , Chetan Kumar Gupta , Choudur Lakshminarayan
发明人： Ramakumar Kosuru , Chetan Kumar Gupta , Choudur Lakshminarayan
IPC分类号： G06F7/00
CPC分类号： G06F16/283 , G06F16/2255 , G06F16/9014
摘要： The present disclosure relates to computing techniques. Data arrays are processed using Bloom filters to determine aggregate count, maximum, and minimum. These methods can be used on different types of data, including data groups, partial groups, data cubes, hypercubes, and others.
摘要翻译：本公开涉及计算技术。数据阵列使用Bloom过滤器进行处理，以确定聚合计数，最大值和最小值。这些方法可用于不同类型的数据，包括数据组，部分组，数据立方体，超立方体等。

4. 发明授权

US08549004B2 Estimation of unique database values 有权
标题翻译：估计唯一数据库值
公开(公告)号：US08549004B2
公开(公告)日：2013-10-01
申请号：US12895683
申请日：2010-09-30
申请人： Choudur Lakshminarayan , Ramakumar Kosuru
发明人： Choudur Lakshminarayan , Ramakumar Kosuru
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F17/30469 , G06F17/30536
摘要： Estimation of unique values in a database can be performed where a data field having multiple information values is provided in the database. The data field can be partitioned into multiple intervals such that each interval includes a range of information values. An interval specific Bloom filter can be calculated for each of the multiple intervals. A binary Bloom filter value can be calculated for an information value within an interval specific Bloom filter. The binary Bloom filter value can represent whether the information value is unique. A number of unique values in the database can be determined based on calculated binary Bloom filter values.
摘要翻译：可以在数据库中提供具有多个信息值的数据字段的情况下执行数据库中唯一值的估计。数据字段可以被划分成多个间隔，使得每个间隔包括一定范围的信息值。可以为多个间隔中的每个间隔计算间隔特定的Bloom过滤器。可以针对间隔特定布隆过滤器内的信息值计算二进制Bloom过滤器值。二进制Bloom过滤器值可以表示信息值是否是唯一的。可以基于计算的二进制Bloom过滤器值来确定数据库中的许多唯一值。

5. 发明申请

US20120084287A1 ESTIMATION OF UNIQUE DATABASE VALUES 有权
标题翻译：统计数据库估值
公开(公告)号：US20120084287A1
公开(公告)日：2012-04-05
申请号：US12895683
申请日：2010-09-30
申请人： Choudur Lakshminarayan , Ramakumar Kosuru
发明人： Choudur Lakshminarayan , Ramakumar Kosuru
IPC分类号： G06F17/30
CPC分类号： G06F17/30469 , G06F17/30536
摘要： Estimation of unique values in a database can be performed where a data field having multiple information values is provided in the database. The data field can be partitioned into multiple intervals such that each interval includes a range of information values. An interval specific Bloom filter can be calculated for each of the multiple intervals. A binary Bloom filter value can be calculated for an information value within an interval specific Bloom filter. The binary Bloom filter value can represent whether the information value is unique. A number of unique values in the database can be determined based on calculated binary Bloom filter values.
摘要翻译：可以在数据库中提供具有多个信息值的数据字段的情况下执行数据库中唯一值的估计。数据字段可以被划分成多个间隔，使得每个间隔包括信息值的范围。可以为多个间隔中的每个间隔计算间隔特定的Bloom过滤器。可以针对间隔特定布隆过滤器内的信息值计算二进制Bloom过滤器值。二进制Bloom过滤器值可以表示信息值是否是唯一的。可以基于计算的二进制Bloom过滤器值来确定数据库中的许多唯一值。

6. 发明申请

US20060200451A1 Plan generation in database query optimizers through specification of plan patterns 有权
标题翻译：通过规划模式规划数据库查询优化器中的计划生成
公开(公告)号：US20060200451A1
公开(公告)日：2006-09-07
申请号：US11074343
申请日：2005-03-07
申请人： Ramakumar Kosuru , Awny Al-Omari
发明人： Ramakumar Kosuru , Awny Al-Omari
IPC分类号： G06F17/30
CPC分类号： G06F17/30466 , G06F17/30471 , Y10S707/99933
摘要： Methods and systems receive a query, receive a control statement that represents at least a portion of a desired execution plan associated with the query, and produce an execution plan that conforms to the desired plan to the extent that the produced plan preserves the semantics of the query, without requiring an exhaustive search. These methods also enable realization of bushy shaped plans that are outside the scope of the optimizer search space.
摘要翻译：方法和系统接收查询，接收表示与查询相关联的期望的执行计划的至少一部分的控制语句，并且产生符合所需计划的执行计划，使得生成的计划保留语义查询，而不需要详尽的搜索。这些方法还可以实现超出优化器搜索空间范围的分类形状的计划。

7. 发明授权

US09824105B2 Adaptive probabilistic indexing with skip lists 有权
公开(公告)号：US09824105B2
公开(公告)日：2017-11-21
申请号：US13460072
申请日：2012-04-30
申请人： Ramakumar Kosuru
发明人： Ramakumar Kosuru
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： G06F17/30327
摘要： A method of indexing in a skip list is disclosed. Key/value pairs are randomly inserted at an appropriate page in a skip list. A new page is created at the lowest level in the skip list. When creating the new page, the page is incremented to a higher level with a write probability. Reading the new page during a search. When reading the new page, the page is incremented to a higher level with a read probability. The read probability is not equal to the write probability.

8. 发明申请

US20130290378A1 ADAPTIVE PROBABILISTIC INDEXING WITH SKIP LISTS 有权
标题翻译：自适应概率指数与跳出列表
公开(公告)号：US20130290378A1
公开(公告)日：2013-10-31
申请号：US13460072
申请日：2012-04-30
申请人： Ramakumar Kosuru
发明人： Ramakumar Kosuru
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F17/30327
摘要： A method of indexing in a skip list is disclosed. Key/value pairs are randomly inserted at an appropriate page in a skip list. A new page is created at the lowest level in the skip list. When creating the new page, the page is incremented to a higher level with a write probability. Reading the new page during a search. When reading the new page, the page is incremented to a higher level with a read probability. The read probability is not equal to the write probability.
摘要翻译：公开了一种在跳过列表中进行索引的方法。键/值对随机插入到跳过列表中的适当页面。在跳过列表中的最底层创建一个新页面。当创建新页面时，页面以写入概率递增到更高级别。在搜索期间阅读新页面。当阅读新页面时，页面以读取概率递增到更高级别。读取概率不等于写入概率。

9. 发明申请

US20110145220A1 SYSTEM AND METHOD FOR EXECUTING A QUERY 审中-公开
标题翻译：执行查询的系统和方法
公开(公告)号：US20110145220A1
公开(公告)日：2011-06-16
申请号：US12635272
申请日：2009-12-10
申请人： Ramakumar Kosuru , Robert M. Wehrmeister
发明人： Ramakumar Kosuru , Robert M. Wehrmeister
IPC分类号： G06F17/30
CPC分类号： G06F16/24532
摘要： There is provided a computer-implemented method of executing a query. An exemplary method comprises optimizing the query. The query may specify multiple operations on corresponding multiple column sets of a table in a database. The exemplary method further comprises partitioning data of the table based on the operations within a single pass of the table. Additionally, the exemplary method comprises performing the operations on the partitioned data in parallel.
摘要翻译：提供了一种执行查询的计算机实现的方法。示例性方法包括优化查询。该查询可以在数据库中的表的对应的多个列集上指定多个操作。该示例性方法还包括基于表的单次通过内的操作来划分表的数据。此外，示例性方法包括并行地对分割数据执行操作。

10. 发明授权

US07343370B2 Plan generation in database query optimizers through specification of plan patterns 有权
标题翻译：通过规划模式规划数据库查询优化器中的计划生成
公开(公告)号：US07343370B2
公开(公告)日：2008-03-11
申请号：US11074343
申请日：2005-03-07
申请人： Ramakumar Kosuru , Awny Al-Omari
发明人： Ramakumar Kosuru , Awny Al-Omari
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30466 , G06F17/30471 , Y10S707/99933
摘要： Methods and systems receive a query, receive a control statement that represents at least a portion of a desired execution plan associated with the query, and produce an execution plan that conforms to the desired plan to the extent that the produced plan preserves the semantics of the query, without requiring an exhaustive search. These methods also enable realization of bushy shaped plans that are outside the scope of the optimizer search space.
摘要翻译：方法和系统接收查询，接收表示与查询相关联的期望的执行计划的至少一部分的控制语句，并且产生符合所需计划的执行计划，使得生成的计划保留语义查询，而不需要详尽的搜索。这些方法还可以实现超出优化器搜索空间范围的分类形状的计划。

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