公开(公告)号：US07552119B2

公开(公告)日：2009-06-23

申请号：US11613757

申请日：2006-12-20

申请人： Edison Lao Ting ,  Tuong Chanh Truong

发明人： Edison Lao Ting ,  Tuong Chanh Truong

IPC分类号： G06F17/30

CPC分类号： G06F17/30938 ,  Y10S707/99936 ,  Y10S707/99943

摘要： An apparatus and method are disclosed for skipping XML index scans with common ancestors of a previously failed predicate. An XML index is scanned by an XML index scan to filter entries of the index matching at least one search value (predicate) of an XML query. When the XML index scan finds a matching entry, the entry is passed to an XPath evaluation component. The XPath evaluation component evaluates the entry against remaining predicates of the XML query for further qualification. When the XPath evaluation component disqualifies an entry, the XPath evaluation component provides feedback to the XML index scan to skip remaining entries comprising a common ancestor of the disqualified entry's path. The XML index scan can then efficiently skip index entries that will not qualify against the XML query.

摘要翻译： 公开了一种用于跳过具有先前故障谓词的共同祖先的XML索引扫描的装置和方法。 通过XML索引扫描扫描XML索引，以过滤与XML查询的至少一个搜索值（谓词）匹配的索引的条目。 当XML索引扫描找到匹配的条目时，该条目将传递给XPath评估组件。 XPath评估组件根据XML查询的剩余谓词评估条目以进一步验证。 当XPath评估组件取消条目资格时，XPath评估组件向XML索引扫描提供反馈，以跳过包含不合格条目路径的共同祖先的剩余条目。 然后，XML索引扫描可以有效地跳过不符合XML查询条件的索引条目。

公开(公告)号：US20080154893A1

公开(公告)日：2008-06-26

申请号：US11613757

申请日：2006-12-20

申请人： Edison Lao Ting ,  Tuong Chanh Truong

发明人： Edison Lao Ting ,  Tuong Chanh Truong

IPC分类号： G06F17/30

CPC分类号： G06F17/30938 ,  Y10S707/99936 ,  Y10S707/99943

摘要： An apparatus and method are disclosed for skipping XML index scans with common ancestors of a previously failed predicate. An XML index is scanned by an XML index scan to filter entries of the index matching at least one search value (predicate) of an XML query. When the XML index scan finds a matching entry, the entry is passed to an XPath evaluation component. The XPath evaluation component evaluates the entry against remaining predicates of the XML query for further qualification. When the XPath evaluation component disqualifies an entry, the XPath evaluation component provides feedback to the XML index scan to skip remaining entries comprising a common ancestor of the disqualified entry's path. The XML index scan can then efficiently skip index entries that will not qualify against the XML query.

摘要翻译： 公开了一种用于跳过具有先前故障谓词的共同祖先的XML索引扫描的装置和方法。 通过XML索引扫描扫描XML索引，以过滤与XML查询的至少一个搜索值（谓词）匹配的索引的条目。 当XML索引扫描找到匹配的条目时，该条目将传递给XPath评估组件。 XPath评估组件根据XML查询的剩余谓词评估条目以进一步验证。 当XPath评估组件取消条目资格时，XPath评估组件向XML索引扫描提供反馈，以跳过包含不合格条目路径的共同祖先的剩余条目。 然后，XML索引扫描可以有效地跳过不符合XML查询条件的索引条目。

公开(公告)号：US09760652B2

公开(公告)日：2017-09-12

申请号：US10870924

申请日：2004-06-21

申请人： Robert William Lyle ,  Edison Lao Ting

发明人： Robert William Lyle ,  Edison Lao Ting

IPC分类号： G06F17/30

CPC分类号： G06F17/30911

摘要： A system and method for managing and storing logically grouped hierarchical data via physical block storage is provided. Logical groups of parsed XML node data forming node ID ranges are indexed by creating and inserting an index entry into a node ID range. Index entries indicate node ID range bounds for blocks in which nodes are stored. Consulting a node ID range index facilitates XML node traversal via logical links between nodes in different blocks. Additionally, physical links between nodes within a block allow for fast node traversal. Node update including insertion and deletion as well as document order based pre-fetch and XML document re-organization is also facilitated by this architecture.

公开(公告)号：US07698295B2

公开(公告)日：2010-04-13

申请号：US11684410

申请日：2007-03-09

申请人： Kevin Scott Beyer ,  Edison Lao Ting

发明人： Kevin Scott Beyer ,  Edison Lao Ting

IPC分类号： G06F17/30

CPC分类号： G06F17/30929 ,  Y10S707/99943

摘要： An apparatus and method for handling a LET binding used in a WHERE clause of an XQuery FLWOR expression during an XML pivot join procedure. XPath steps under a LET binding are identified and marked as bindings. During a match graph construction phase of the pivot join procedure, the bindings are linked to a first common non-LET binding ancestor, while traversing from the bottom up. A location identifier for each binding is truncated to the location identifier of the first common non-LET binding ancestor to create a truncated location identifier. The truncated location identifier is compared to a node identification of a FOR binding of the XQuery FLWOR expression. A match of the node identifications will qualify the XML document and the XML document is returned by the XML pivot join procedure.

摘要翻译： 一种用于在XML枢轴连接过程中处理XQuery FLWOR表达式的WHERE子句中使用的LET绑定的装置和方法。 识别LET绑定下的XPath步骤，并将其标记为绑定。 在枢轴连接过程的匹配图构造阶段期间，绑定链接到第一个公共非LET绑定祖先，同时从下往上遍历。 每个绑定的位置标识符被截断为第一个公共非LET绑定祖先的位置标识符以创建截断的位置标识符。 将截断的位置标识符与XQuery FLWOR表达式的FOR绑定的节点标识进行比较。 节点标识的匹配将限定XML文档，并且XML文档由XML枢轴连接过程返回。

公开(公告)号：US08180802B2

公开(公告)日：2012-05-15

申请号：US10605448

申请日：2003-09-30

申请人： Kevin Scott Beyer ,  Robert William Lyle ,  Edison Lao Ting

发明人： Kevin Scott Beyer ,  Robert William Lyle ,  Edison Lao Ting

IPC分类号： G06F17/30

CPC分类号： G06F17/30961

摘要： An extensible identification system for nodes in a hierarchy is described wherein each node is assigned a concatenation of decimal based values. The values assigned uniquely identify the node, provides an order for the node, and identifies its parent, child, and sibling relationships with other nodes Furthermore, the IDs assigned can be encoded to be byte comparable. Furthermore, the ID's assigned to nodes need not be modified when changes (adding/deleting a child node or a subtree of nodes) are made in the hierarchy. Additionally, in the event of such a change, the order and relationships between the parent, child, and sibling nodes are retained.

摘要翻译： 描述了用于层次结构中的节点的可扩展识别系统，其中每个节点被分配为基于十进制的值的级联。 分配的值唯一标识节点，提供节点的顺序，并识别其与其他节点的父，子节点和兄弟关系。此外，分配的ID可以编码为字节可比。 此外，在层次结构中进行更改（添加/删除子节点或节点子树）时，不需要修改分配给节点的ID。 另外，如果发生这种变化，则保留父，子和兄弟节点之间的顺序和关系。

公开(公告)号：US08117170B2

公开(公告)日：2012-02-14

申请号：US10711808

申请日：2004-10-06

申请人： James C. Kleewein ,  Edison Lao Ting

发明人： James C. Kleewein ,  Edison Lao Ting

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： G06F17/30309

摘要： A method (and an article of manufacture having computer readable program code to implement the method) is disclosed to version a node range and locate a versioned node range in a storage architecture, wherein the method comprises: maintaining a set of node ranges, with each node range being formed from a range of node ID values assigned to each node among a plurality of nodes, receiving a node modification request for a node range from a database system, versioning the node range by copying (to a storage) a node range to which the node modification request is to be made, labeling the copied node range with a timestamp, locating the labeled node range via the timestamp and a hash on the node range, and outputting the located labeled node range. Optionally, versioning is done by shadowing nodes in the range to a version hash table based on a range identifier.

摘要翻译： 公开了一种方法（以及具有用于实现该方法的计算机可读程序代码的制造物品），用于对节点范围进行版本定位并将存储体系结构中的版本化节点范围定位，其中所述方法包括：维护一组节点范围， 节点范围从分配给多个节点中的每个节点的节点ID值的范围形成，从数据库系统接收节点范围的节点修改请求，通过将节点范围复制（存储）到节点范围来对节点范围进行版本化 要进行节点修改请求，用时间戳标记复制的节点范围，经由时间戳定位标记的节点范围，并在节点范围上定位散列，并输出定位的标记节点范围。 可选地，版本控制通过基于范围标识符将范围内的节点映射到版本哈希表来完成。

公开(公告)号：US08112462B2

公开(公告)日：2012-02-07

申请号：US12622596

申请日：2009-11-20

申请人： Mayank Pradhan ,  Edison Lao Ting ,  Robbert Van der Linden

发明人： Mayank Pradhan ,  Edison Lao Ting ,  Robbert Van der Linden

IPC分类号： G06F17/30

CPC分类号： G06F12/0269

摘要： A method and system for distributed garbage collection in a pipelined workflow environment comprising a plurality of processing nodes that pass item references to each other. Each node maintains a reference list of local item references and a reference dictionary of remote item references, and periodically synchronizes the reference list with the reference dictionaries of other nodes in the workflow, so that item references are not marked for garbage collection while other processing nodes may still have outstanding references to them.

摘要翻译： 一种用于在流水线工作流环境中分布式垃圾收集的方法和系统，包括将项目引用彼此传递的多个处理节点。 每个节点维护本地项目引用的引用列表和远程项目引用的引用字典，并且周期性地将参考列表与工作流中的其他节点的引用字典同步，使得项目引用不被标记为垃圾收集，而其他处理节点 可能仍然有很好的参考。

公开(公告)号：US08086956B2

公开(公告)日：2011-12-27

申请号：US11837712

申请日：2007-08-13

申请人： Edison Lao Ting ,  James C. Kleewein

发明人： Edison Lao Ting ,  James C. Kleewein

IPC分类号： G06F17/27

CPC分类号： G06F17/30896 ,  G06F17/2247 ,  G06F17/272 ,  Y10S707/99934

摘要： Method for ordering nodes within hierarchical data. The concept of isolated ordered regions to maintain coordinates of nodes is used by associating each node with coordinates relative to a containing region. Modifications to nodes within a region only affect the nodes in that region, and not nodes in other regions. Traversals that retrieve information from the nodes can rebase the coordinates from their containing region and return with a total order.

公开(公告)号：US07698260B2

公开(公告)日：2010-04-13

申请号：US11684425

申请日：2007-03-09

申请人： Kevin Scott Beyer ,  Edison Lao Ting

发明人： Kevin Scott Beyer ,  Edison Lao Ting

IPC分类号： G06F17/30

CPC分类号： G06F17/30938 ,  Y10S707/99933

摘要： An apparatus and method for handling a LET binding used in a WHERE clause of an XQuery FLWOR expression during an XML pivot join procedure. The disclosed apparatus and method enable an XML pivot join procedure to accurately process a query and return one or more qualifying documents. A logical expression within the WHERE clause is identified. Next steps of the logical expression are separated by logical operators. The LET binding is incorporated with each next step. The XQuery FLWOR expression is rewritten using the incorporations along with a FOR binding of the XQuery FLWOR expression to make a syntactically equivalent XPath query. Predicates of the LET binding may also be incorporated with the next steps, without altering the predicates.

摘要翻译： 一种用于在XML枢轴连接过程中处理XQuery FLWOR表达式的WHERE子句中使用的LET绑定的装置和方法。 所公开的装置和方法使得XML枢轴连接过程能够精确地处理查询并返回一个或多个限定文件。 识别WHERE子句中的逻辑表达式。 逻辑表达式的后续步骤由逻辑运算符分隔。 LET绑定结合在下一个步骤中。 XQuery FLWOR表达式将重写，并使用XQuery FLWOR表达式的FOR绑定，以进行语法上等效的XPath查询。 LET绑定的谓词也可以并入下一步骤，而不改变谓词。

公开(公告)号：US07647313B2

公开(公告)日：2010-01-12

申请号：US11837741

申请日：2007-08-13

申请人： Edison Lao Ting ,  James C. Kleewein

发明人： Edison Lao Ting ,  James C. Kleewein

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： G06F17/30896 ,  G06F17/2247 ,  G06F17/272 ,  Y10S707/99934

摘要： Method for ordering nodes within hierarchical data. The concept of isolated ordered regions to maintain coordinates of nodes is used by associating each node with coordinates relative to a containing region. Modifications to nodes within a region only affect the nodes in that region, and not nodes in other regions. Traversals that retrieve information from the nodes can rebase the coordinates from their containing region and return with a total order.

摘要翻译： 在层次数据中排序节点的方法。 通过将每个节点与相对于包含区域的坐标相关联来使用隔离有序区域维持节点坐标的概念。 对区域内节点的修改仅影响该区域中的节点，而不影响其他区域中的节点。 从节点检索信息的遍历可以从其包含的区域中重新调整坐标，并以总顺序返回。