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81. 发明申请

US20140149527A1 Slave Side Transaction ID Buffering for Efficient Distributed Transaction Management 有权
标题翻译：从属端事务ID缓存用于高效的分布式事务管理
公开(公告)号：US20140149527A1
公开(公告)日：2014-05-29
申请号：US13763920
申请日：2013-02-11
申请人： Juchang Lee , Chang Gyoo Park , Hyoungjun Na , Kyuhwan Kim
发明人： Juchang Lee , Chang Gyoo Park , Hyoungjun Na , Kyuhwan Kim
IPC分类号： H04L29/08
CPC分类号： H04L67/10 , G06F17/30356
摘要： Methods, systems and computer-readable storage mediums encoded with computer programs executed by one or more processors for providing a compressed representation of a transaction token are disclosed. In an embodiment, upon a receipt of a request for a write transaction at a slave server it is determined whether there exists an unassigned transaction identifier (TID) stored locally at the slave server as provided by a master server to the slave server prior to the receipt of the write request by the slave server. If there exists an unassigned TID at the slave server, the slave server is configured to assign the unassigned TID to the write transaction, otherwise the slave server is configured to request a plurality of unassigned TIDs from the master server, receive the plurality of unassigned TIDs, and assign one of the received unassigned TIDs to the write transaction. The write transaction is processed.
摘要翻译：公开了由用于提供交易令牌的压缩表示的一个或多个处理器执行的计算机程序编码的方法，系统和计算机可读存储介质。在一个实施例中，在从属服务器接收到写入事务的请求时，确定是否存在在主服务器本地存储在从服务器处的本地存储的未分配事务标识符（TID）从服务器接收写请求。如果在从服务器处存在未分配的TID，则从服务器被配置为将未分配的TID分配给写事务，否则从服务器被配置为从主服务器请求多个未分配的TID，接收多个未分配的TID 并将所接收的未分配的TID中的一个分配给写入事务。处理写事务。

82. 发明申请

US20140122452A1 UNIFIED TABLE QUERY PROCESSING 有权
标题翻译：统一表查询处理
公开(公告)号：US20140122452A1
公开(公告)日：2014-05-01
申请号：US13843898
申请日：2013-03-15
申请人： Franz Faerber , Juchang Lee , Ivan Schreter
发明人： Franz Faerber , Juchang Lee , Ivan Schreter
IPC分类号： G06F17/30
CPC分类号： G06F17/30501 , G06F17/30297 , G06F17/30315 , G06F17/30386 , G06F17/30477 , G06F17/30498
摘要： A system and method of query processing in a multi-level storage system having a unified table architecture. A query is received by a common query execution engine connected with the unified table architecture, the query specifying a data record. The common query execution engine performs a look-up for the data record based on the query at the first level storage structure. If the data record is not present at the first level storage structure, the common query execution engine performs separate look-ups in each of the second level storage structure and the main store.
摘要翻译：具有统一表架构的多级存储系统中的查询处理系统和方法。与统一表架构相连的通用查询执行引擎接收到查询，查询指定数据记录。普通查询执行引擎根据第一级存储结构的查询执行数据记录的查找。如果第一级存储结构中不存在数据记录，则公共查询执行引擎在第二级存储结构和主存储中的每一个中执行单独的查找。

83. 发明申请

US20140122439A1 DELETING RECORDS IN A MULTI-LEVEL STORAGE ARCHITECTURE 有权
标题翻译：在多层次的存储架构中删除记录
公开(公告)号：US20140122439A1
公开(公告)日：2014-05-01
申请号：US13844070
申请日：2013-03-15
申请人： Franz Faerber , Juchang Lee , Ivan Schreter
发明人： Franz Faerber , Juchang Lee , Ivan Schreter
IPC分类号： G06F17/30
CPC分类号： G06F17/30303 , G06F17/30289 , G06F17/30306 , G06F17/30315 , G06F17/30345 , G06F17/30371
摘要： Deleting a data record from the second level storage or main store is disclosed. A look-up is performed for the data record in the first level storage, where the data record is defined by a row identifier. If the row identifier is found in the first level storage, a look-up is performed for an updated row identifier representing an update of the data record in the second level storage and the main store, the update of the data record being defined by an updated row identifier. If the updated row identifier is found in the second level storage, an undo log is generated from the first level storage to invalidate a row identifier of the row identifier. A flag is generated representing an invalid updated row identifier, and a redo log is generated to restore the data record in the first level storage.
摘要翻译：公开了从第二级存储或主存储器中删除数据记录。对第一级存储器中的数据记录执行查找，其中数据记录由行标识符定义。如果在第一级存储器中找到行标识符，则对表示第二级存储器和主存储器中的数据记录的更新的更新行标识符执行查找，数据记录的更新由更新的行标识符。如果在第二级存储器中找到更新的行标识符，则从第一级存储器生成撤销日志以使行标识符的行标识符无效。生成表示无效的更新行标识符的标志，并且生成重做日志以恢复第一级存储器中的数据记录。

84. 发明申请

US20130275550A1 UPDATE PROTOCOL FOR CLIENT-SIDE ROUTING INFORMATION 有权
标题翻译：用于客户端路由信息的更新协议
公开(公告)号：US20130275550A1
公开(公告)日：2013-10-17
申请号：US13449081
申请日：2012-04-17
申请人： Juchang Lee , Jaeyun Noh , Chulwon Lee , Michael Muehle , Alexander Schroeder , Marco Paskamp , Sang Kyun Cha
发明人： Juchang Lee , Jaeyun Noh , Chulwon Lee , Michael Muehle , Alexander Schroeder , Marco Paskamp , Sang Kyun Cha
IPC分类号： G06F15/16 , G06F17/30
CPC分类号： G06F17/30545
摘要： A system includes reception of a first query from a client device at a first database node of a database instance, determination of routing information associated with the first query, compilation of the first query at the first database node to generate first compiled code, transmission of the first compiled code and the routing information to the client device, reception of the compiled code from the client device at a second database node, determination, at the second database node, that data associated with the compiled query is associated with a third database node, transmission of the compiled code from the second database node to the third database node, reception of query results at the second database node from the third database node, and transmission of the query results and an indication to update the routing information from the second database node to the client device.
摘要翻译：系统包括在数据库实例的第一数据库节点处从客户端设备接收第一查询，确定与第一查询相关联的路由信息，在第一数据库节点处编译第一查询以生成第一编译代码，传输第一编译代码和到客户端设备的路由信息，在第二数据库节点从客户端设备接收编译代码，在第二数据库节点确定与编译查询相关联的数据与第三数据库节点将编译代码从第二数据库节点传输到第三数据库节点，从第三数据库节点接收第二数据库节点处的查询结果，以及发送查询结果以及从第二数据库更新路由信息的指示节点到客户端设备。

85. 发明申请

US20130166553A1 Hybrid Database Table Stored as Both Row and Column Store 有权
公开(公告)号：US20130166553A1
公开(公告)日：2013-06-27
申请号：US13334669
申请日：2011-12-22
申请人： Yongsik Yoon , Chanho Jeong , Juchang Lee , Chang Bin Song , Yong Sik Kwon , Sang Kyun Cha
发明人： Yongsik Yoon , Chanho Jeong , Juchang Lee , Chang Bin Song , Yong Sik Kwon , Sang Kyun Cha
IPC分类号： G06F17/30
CPC分类号： G06F17/30424 , G06F17/30312 , G06F17/30371 , G06F17/30584
摘要： A hybrid database table is stored as both a row and a column store. One or more techniques may be employed alone or in combination to enhance performance of the hybrid table by regulating access to, and/or the size of, the processing-intensive column store data. For example during an insert operation, the column store data may be searched for a uniqueness violation only after certain filtering and/or boundary conditions have been considered. In another technique, a hybrid table manager may control movement of data to the column store based upon considerations such as frequency of access, or underlying business logic. In still another technique, querying of the hybrid table may result in a search of the column store data only after an initial search of row store data fails to return a result.

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