Patents by Inventor Sebastian Seifert
Sebastian Seifert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250190416Abstract: A database system detects a query targeting a first database object stored in a unified persistence format in a persistence store, where a first load unit is specified for loading the first database object into an in-memory store. The database system determines whether to convert the first load unit to a second load unit based on one or more conditions. In response to determining to convert the first load unit to the second load unit for the first database object, the first database object is loaded into the in-memory store according to the second load unit without performing a rewrite of the first database object in the persistence store. In an example, the first load unit is a column-loadable unit and the second load unit is a page-loadable unit.Type: ApplicationFiled: December 11, 2023Publication date: June 12, 2025Inventors: Souvik Pal, Deepak Shrivastava, Kantikumar Kantikumar, Janardhan Hungund, Sebastian Seifert, Bernhard Scheirle, Amit Pathak, Amit Saonerker, Amit Sankhla
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Publication number: 20250181601Abstract: A system for managing data persistence formats in a computing system, comprising, at least one data processor; and at least one memory result in operations comprising: computing an estimated serial size (ES) for a dataset; computing an estimated unified size (EU) for the dataset; selecting, based at least in part on a predefined set of rules, between a serial persistence format and a unified persistence format to store the dataset, wherein the selection is based at least in part on the computed estimated serial size and the computed estimated unified size; storing the selected persistence format in a metadata associated with the stored dataset; and in response to a loading request, loading the stored dataset by referring to the metadata.Type: ApplicationFiled: December 5, 2023Publication date: June 5, 2025Inventors: Ishita Gupta, Janardhan Hungund, Amit Saonerker, Jagadeesha Kanihal, Amit Pathak, Sebastian Seifert, Bernhard Scheirle, Neha Shikha Kachhap
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Publication number: 20250181600Abstract: A database system detects a query targeting a first database object stored in a unified persistence format in a persistence store. In response to detecting the query, the database system determines whether to load the first database object in column-loadable format or page-loadable format into an in-memory store. In response to determining to load the first database object in the column-loadable format, the database system determines if a first bit representation of one or more corresponding primitives in the persistence store is compatible with a second bit representation used for storing the primitives in the in-memory store. The database system performs a native copy operation to copy the primitives from the persistence store to the in-memory store if the bit representations are compatible, where the native copy operation involves copying the primitives on a page-by-page basis without decoding and encoding values of the one or more primitives.Type: ApplicationFiled: February 3, 2025Publication date: June 5, 2025Inventors: Anish Maniyar, Santhosh T. Kumar, Guo Gang Ye, Amit Pathak, Sebastian Seifert, Souvik Pal
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Publication number: 20250165453Abstract: A database system detects an operation to move a first database object from an in-memory store to a persistence store, wherein the first database object is in either a page-loadable or column-loadable format in the in-memory store, and wherein the first database object comprises a plurality of subcomponents. Each subcomponent of the first database object is examined separately from other subcomponents of the plurality of subcomponents. In response to determining that a first subcomponent of the plurality of subcomponents has a datatype and a compression type supported by a unified persistence format, the first subcomponent is stored in a unified persistence format in the persistence store. In response to determining that a second subcomponent of the plurality of subcomponents has either a datatype or a compression type which is not supported by the unified persistence format, the second subcomponent is stored in a serial persistence format in the persistence store.Type: ApplicationFiled: November 21, 2023Publication date: May 22, 2025Inventors: Janardhan Hungund, Amit Pathak, Amit Saonerker, Deepak Shrivastava, Souvik Pal, Sebastian Seifert, Robert Schulze, Mihnea Andrei
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Publication number: 20250139015Abstract: In some implementations, there is provided a method that includes configuring a first threshold for page-loadable data at a buffer cache associated with a database; checking the buffer cache to determine usage of the buffer cache by the page-loadable data; in response to the usage of the buffer cache being more than the first threshold, causing a background job to release one or more buffers in the buffer cache; checking, after releasing at least one buffer of the buffer cache, the buffer cache to determine whether usage by the page-loadable data is below the first threshold; in response to the usage being below the first threshold, stopping the release of additional one or more buffers in the buffer cache; and in response to the usage being above the first threshold, continuing the release of the additional one or more buffers in the buffer cache.Type: ApplicationFiled: October 26, 2023Publication date: May 1, 2025Inventors: Nishant Vijayvergiya, Amit Pathak, Sebastian Seifert, Thomas Peh, Sergej Hardock
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Patent number: 12282494Abstract: A primary database system loads database objects into a primary in-memory store according to a given format. The primary database captures, in replay logs, the loading of the database objects according to the given format. The primary database sends the replay logs to a secondary database system. In response to receiving a replay log, the secondary database checks the value of a log replay configuration parameter. If the configuration parameter is a first value, the secondary database replays the replay log to load the corresponding database objects into a secondary in-memory store according to a first format. If the configuration parameter is a second value, the secondary database replays the log to load the objects according to a second format, and if the configuration parameter is a third value, the secondary database replays the log to load the objects in a same format which was used by the primary database.Type: GrantFiled: December 5, 2023Date of Patent: April 22, 2025Assignee: SAP SEInventors: Janardhan Hungund, Neha Shikha Kachhap, Jagadeesha Kanihal, Sebastian Seifert, Bernhard Scheirle, Amit Pathak, Werner Thesing, Thomas Peh
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Patent number: 12242497Abstract: A database system detects a query targeting a first database object stored in a unified persistence format in a persistence store. In response to detecting the query, the database system determines whether to load the first database object in column-loadable format or page-loadable format into an in-memory store. In response to determining to load the first database object in the column-loadable format, the database system determines if a first bit representation of one or more corresponding primitives in the persistence store is compatible with a second bit representation used for storing the primitives in the in-memory store. The database system performs a native copy operation to copy the primitives from the persistence store to the in-memory store if the bit representations are compatible, where the native copy operation involves copying the primitives on a page-by-page basis without decoding and encoding values of the one or more primitives.Type: GrantFiled: November 8, 2023Date of Patent: March 4, 2025Assignee: SAP SEInventors: Anish Maniyar, Santhosh T Kumar, Guo Gang Ye, Amit Pathak, Sebastian Seifert, Souvik Pal
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Patent number: 12197419Abstract: Systems and methods include reception of an instruction to perform a consistency check on compressed column data. In response to the instruction, a compression algorithm applied to uncompressed column data to generate the compressed column data is determined, one or more consistency checks associated with the compression algorithm are determined, wherein a first one or more consistency checks associated with a first compression algorithm are different from a second one or more consistency checks associated with a second compression algorithm, the one or more consistency checks are executed on the compressed column data, and, if the one or more consistency checks are not satisfied, a notification is transmitted to a user.Type: GrantFiled: October 26, 2022Date of Patent: January 14, 2025Assignee: SAP SEInventors: Frederic Junker, Christian Lemke, Sebastian Seifert
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Publication number: 20240086392Abstract: Systems and methods include reception of an instruction to perform a consistency check on compressed column data. In response to the instruction, a compression algorithm applied to uncompressed column data to generate the compressed column data is determined, one or more consistency checks associated with the compression algorithm are determined, wherein a first one or more consistency checks associated with a first compression algorithm are different from a second one or more consistency checks associated with a second compression algorithm, the one or more consistency checks are executed on the compressed column data, and, if the one or more consistency checks are not satisfied, a notification is transmitted to a user.Type: ApplicationFiled: October 26, 2022Publication date: March 14, 2024Inventors: Frederic JUNKER, Christian LEMKE, Sebastian SEIFERT
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Patent number: 11755565Abstract: Disclosed herein are system, method, and computer-program product embodiments for generating a paged and in-memory representation of a database object. An embodiment operates by maintaining in-memory and paged form primitives unique to the database object or a substructure thereof in a database such that the in-memory and paged form primitives are capable of providing the in-memory and paged representations of the database objects, respectively. Thereafter, a load configuration for the database object is determined. Based on the load configuration, the in-memory and/or paged representations of the database object are generated using the in-memory form primitive or the paged form primitive unique to the database object, respectively. Subsequently, the in-memory and/or paged representations of the database object are stored in the database.Type: GrantFiled: October 7, 2021Date of Patent: September 12, 2023Assignee: SAP SEInventors: Colin Florendo, Mihnea Andrei, Amit Pathak, Robert Schulze, Adrian Dragusanu, Reza Sherkat, Sebastian Seifert, Christian Lemke
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Patent number: 11681676Abstract: A system includes application of respective compression types to first data associated with each of a plurality of columns to generate compressed column data, determination of a first compression ratio for each of the plurality of columns based on the compressed column data, storage of the determined first compression ratios, application, for each of the plurality of columns, of the determined compression type to second data associated with the column to generate second compressed column data, determination of a second compression ratio for each of the plurality of columns based on the second compressed column data, determination of a value for each column based on the stored first compression ratio and the second compression ratio determined for the column, determination of a representative value of the determined values, and determination, based on the representative value, whether to re-determine a compression type for each of the plurality of columns.Type: GrantFiled: June 24, 2021Date of Patent: June 20, 2023Assignee: SAP SEInventors: Frederic Junker, Christian Lemke, Sebastian Seifert
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Publication number: 20220414078Abstract: A system includes application of respective compression types to first data associated with each of a plurality of columns to generate compressed column data, determination of a first compression ratio for each of the plurality of columns based on the compressed column data, storage of the determined first compression ratios, application, for each of the plurality of columns, of the determined compression type to second data associated with the column to generate second compressed column data, determination of a second compression ratio for each of the plurality of columns based on the second compressed column data, determination of a value for each column based on the stored first compression ratio and the second compression ratio determined for the column, determination of a representative value of the determined values, and determination, based on the representative value, whether to re-determine a compression type for each of the plurality of columns.Type: ApplicationFiled: June 24, 2021Publication date: December 29, 2022Inventors: Frederic JUNKER, Christian LEMKE, Sebastian SEIFERT
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Publication number: 20220027354Abstract: Disclosed herein are system, method, and computer-program product embodiments for generating a paged and in-memory representation of a database object. An embodiment operates by maintaining in-memory and paged form primitives unique to the database object or a substructure thereof in a database such that the in-memory and paged form primitives are capable of providing the in-memory and paged representations of the database objects, respectively. Thereafter, a load configuration for the database object is determined. Based on the load configuration, the in-memory and/or paged representations of the database object are generated using the in-memory form primitive or the paged form primitive unique to the database object, respectively. Subsequently, the in-memory and/or paged representations of the database object are stored in the database.Type: ApplicationFiled: October 7, 2021Publication date: January 27, 2022Inventors: Colin FLORENDO, Mihnea ANDREI, Amit PATHAK, Robert SCHULZE, Adrian DRAGUSANU, Reza SHERKAT, Sebastian SEIFERT, Christian LEMKE
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Patent number: 11151126Abstract: Disclosed herein are system, method, and computer-program product embodiments for generating a paged and in-memory representation of a database object. An embodiment operates by maintaining in-memory and paged form primitives unique to the database object or a substructure thereof in a database such that the in-memory and paged form primitives are capable of providing the in-memory and paged representations of the database objects, respectively. Thereafter, a load configuration for the database object is determined. Based on the load configuration, the in-memory and/or paged representations of the database object are generated using the in-memory form primitive or the paged form primitive unique to the database object, respectively. Subsequently, the in-memory and/or paged representations of the database object are stored in the database.Type: GrantFiled: May 5, 2020Date of Patent: October 19, 2021Assignee: SAP SEInventors: Colin Florendo, Mihnea Andrei, Amit Pathak, Robert Schulze, Adrian Dragusanu, Reza Sherkat, Sebastian Seifert, Christian Lemke
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Publication number: 20200387509Abstract: Disclosed herein are system, method, and computer-program product embodiments for generating a paged and in-memory representation of a database object. An embodiment operates by maintaining in-memory and paged form primitives unique to the database object or a substructure thereof in a database such that the in-memory and paged form primitives are capable of providing the in-memory and paged representations of the database objects, respectively. Thereafter, a load configuration for the database object is determined. Based on the load configuration, the in-memory and/or paged representations of the database object are generated using the in-memory form primitive or the paged form primitive unique to the database object, respectively. Subsequently, the in-memory and/or paged representations of the database object are stored in the database.Type: ApplicationFiled: May 5, 2020Publication date: December 10, 2020Inventors: Colin Florendo, Mihnea ANDREI, Amit PATHAK, Robert SCHULZE, Adrian DRAGUSANU, Reza SHERKAT, Sebastian SEIFERT, Christian LEMKE
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Patent number: 10719450Abstract: A system in which a volatile random access memory stores first header data, second header data, a first logical array in a first contiguous memory block and a second logical array in a second contiguous memory block. Each array position of the first logical array stores a database column value, and each array position of the second logical array stores an indication of a number of consecutive occurrences of a database column value. The first header data includes a first pointer to the first memory block, and the second header data includes a second pointer to the second memory block.Type: GrantFiled: December 21, 2018Date of Patent: July 21, 2020Assignee: SAP SEInventors: Sebastian Seifert, Christian Lemke
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Patent number: 10628325Abstract: A system includes a volatile random access memory storing first header data and a first data block, the first header data including descriptive information and a first pointer to the first data block, and a non-volatile random access memory. The system includes determination of a memory size associated with the first header data and the first data block, allocation of a first memory block of the non-volatile random access memory based on the determined memory size, determination of an address of the non-volatile random access memory associated with the allocated first memory block, and writing of the descriptive information and a binary copy of the first data block at the address of the non-volatile random access memory.Type: GrantFiled: November 21, 2018Date of Patent: April 21, 2020Assignee: SAP SEInventors: Carsten Thiel, Guenter Radestock, Sebastian Seifert, Christian Lemke, Rolando Blanco, Muhammed Sharique, Surendra Vishnoi, Mihnea Andrei, Bernhard Scheirle
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Patent number: 10582907Abstract: A method and apparatus for deep learning based automatic bone removal in medical images, such as computed tomography angiography (CTA) volumes, is disclosed. Bone structures are segmented in a 3D medical image of a patient by classifying voxels of the 3D medical image as bone or non-bone voxels using a deep neural network trained for bone segmentation. A 3D visualization of non-bone structures in the 3D medical image is generated by removing voxels classified as bone voxels from a 3D visualization of the 3D medical image.Type: GrantFiled: October 9, 2017Date of Patent: March 10, 2020Assignee: Siemens Healthcare GmbHInventors: Mingqing Chen, Tae Soo Kim, Jan Kretschmer, Sebastian Seifert, Shaohua Kevin Zhou, Max Schöbinger, David Liu, Zhoubing Xu, Sasa Grbic, He Zhang
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Publication number: 20190347208Abstract: A system includes a volatile random access memory storing first header data and a first data block, the first header data including descriptive information and a first pointer to the first data block, and a non-volatile random access memory. The system includes determination of a memory size associated with the first header data and the first data block, allocation of a first memory block of the non-volatile random access memory based on the determined memory size, determination of an address of the non-volatile random access memory associated with the allocated first memory block, and writing of the descriptive information and a binary copy of the first data block at the address of the non-volatile random access memory.Type: ApplicationFiled: November 21, 2018Publication date: November 14, 2019Inventors: Carsten Thiel, Guenter Radestock, Sebastian Seifert, Christian Lemke, Rolando Blanco, Muhammed Sharique, Surendra Vishnoi, Mihnea Andrei, Bernhard Scheirle
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Publication number: 20190347209Abstract: A system in which a volatile random access memory stores first header data, second header data, a first logical array in a first contiguous memory block and a second logical array in a second contiguous memory block. Each array position of the first logical array stores a database column value, and each array position of the second logical array stores an indication of a number of consecutive occurrences of a database column value. The first header data includes a first pointer to the first memory block, and the second header data includes a second pointer to the second memory block.Type: ApplicationFiled: December 21, 2018Publication date: November 14, 2019Inventors: Sebastian Seifert, Christian Lemke