Patents by Inventor Subramanian Muralidhar
Subramanian Muralidhar 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: 20200334239Abstract: Systems, methods, and devices for querying over an external table are disclosed. A method includes connecting a database platform to an external table such that the database platform has read access for the external table and does not have write access for the external table. The method includes receiving a query comprising a predicate, the query directed at least to data in the external table. The method includes determining, based on metadata, one or more partitions in the external table comprising data satisfying the predicate. The method includes pruning, based on the metadata, all partitions in the external table that do not comprise any data satisfying the predicate. The method includes generating a query plan comprising a plurality of discrete subtasks. The method includes assigning, based on the metadata, the plurality of discrete subtasks to one or more nodes in an execution platform.Type: ApplicationFiled: April 16, 2019Publication date: October 22, 2020Inventors: Subramanian Muralidhar, Benoit Dageville, Thierry Cruanes, Nileema Shingte, Saurin Shah, Torsten Grabs, Istvan Cseri
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Publication number: 20200334242Abstract: Systems, methods, and devices for automated maintenance of external tables in database systems are disclosed. A method includes receiving, by a database platform, read access to content in an external data storage platform that is separate from the database platform. The method includes defining an external table based on the content in the external data storage platform. The method includes connecting the database platform to the external table such that the database platform has read access for the external table and does not have write access for the external table. The method includes generating metadata for the external table, the metadata comprising information about data stored in the external table. The method includes receiving a notification that a modification has been made to the content in the external data storage platform, the modification comprising one or more of an addition of a file, a deletion of a file, or an update to a file in a source location for the external table.Type: ApplicationFiled: April 8, 2020Publication date: October 22, 2020Inventors: Subramanian Muralidhar, Benoit Dageville, Thierry Cruanes, Nileema Shingte, Saurin Shah, Torsten Grabs, Istvan Cseri
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Publication number: 20200334231Abstract: Systems, methods, and devices for generating a materialized view over an external table. A method includes connecting a database platform to an external table such that the database platform has read access for the external table and does not have write access for the external table. The method includes generating, by the database platform, a materialized view over the external table. The method includes receiving a notification that a modification has been made to the external table, the modification comprising one or more of an addition of a file, a deletion of a file, or an update to a file in a source location for the external table. The method includes, in response to the external table being modified, refreshing the materialized view such that the materialized view comprises an accurate representation of the external table.Type: ApplicationFiled: January 28, 2020Publication date: October 22, 2020Inventors: Subramanian Muralidhar, Benoit Dageville, Thierry Cruanes, Nileema Shingte, Saurin Shah, Torsten Grabs, Istvan Cseri
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Publication number: 20200334240Abstract: Systems, methods, and devices for automated maintenance of external tables in database systems are disclosed. A method includes receiving, by a database platform, read access to content in an external data storage platform that is separate from the database platform. The method includes defining an external table based on the content in the external data storage platform. The method includes connecting the database platform to the external table such that the database platform has read access for the external table and does not have write access for the external table. The method includes generating metadata for the external table, the metadata comprising information about data stored in the external table. The method includes receiving a notification that a modification has been made to the content in the external data storage platform, the modification comprising one or more of an addition of a file, a deletion of a file, or an update to a file in a source location for the external table.Type: ApplicationFiled: April 16, 2019Publication date: October 22, 2020Inventors: Subramanian Muralidhar, Benoit Dageville, Thierry Cruanes, Nileema Shingte, Saurin Shah, Torsten Grabs, Istvan Cseri
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Publication number: 20200334241Abstract: Systems, methods, and devices for querying over an external table are disclosed. A method includes connecting a database platform to an external table such that the database platform has read access for the external table and does not have write access for the external table. The method includes receiving a query comprising a predicate, the query directed at least to data in the external table. The method includes determining, based on metadata, one or more partitions in the external table comprising data satisfying the predicate. The method includes pruning, based on the metadata, all partitions in the external table that do not comprise any data satisfying the predicate. The method includes generating a query plan comprising a plurality of discrete subtasks. The method includes assigning, based on the metadata, the plurality of discrete subtasks to one or more nodes in an execution platform.Type: ApplicationFiled: April 7, 2020Publication date: October 22, 2020Inventors: Subramanian Muralidhar, Benoit Dageville, Thierry Cruanes, Nileema Shingte, Saurin Shah, Torsten Grabs, Istvan Cseri
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Publication number: 20200183909Abstract: Systems, methods, and devices for generating a transactional change tracking summary for a database. A method includes executing a transaction on a table of a database, wherein the table includes a micro-partition and the transaction is executed on the micro-partition. The method includes, in response to the transaction being fully executed, generating a change tracking entry comprising an indication of one or modifications made to the table by the transaction.Type: ApplicationFiled: December 6, 2019Publication date: June 11, 2020Inventors: Subramanian Muralidhar, Istvan Cseri, Torsten Grabs, Benoit Dageville
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Publication number: 20200183908Abstract: Systems, methods, and devices for generating a transactional change tracking summary for a database. A method includes executing a transaction on a table of a database, wherein the table includes a micro-partition and the transaction is executed on the micro-partition. The method includes, in response to the transaction being fully executed, generating a change tracking entry comprising an indication of one or modifications made to the table by the transaction. The method includes storing the change tracking entry in a change tracking stream, wherein the change tracking stream includes one or more sequential change tracking entries that each correspond to a different transaction that is fully executed on the table.Type: ApplicationFiled: December 7, 2018Publication date: June 11, 2020Inventors: Subramanian Muralidhar, Istvan Cseri, Torsten Grabs, Benoit Dageville
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Patent number: 9952971Abstract: Systems and methods that aggregate memory capacity of multiple computers into a single unified cache, via a layering arrangement. Such layering arrangement is scalable to a plurality of machines and includes a data manager component, an object manager component and a distributed object manager component, which can be implemented in a modular fashion. Moreover, the layering arrangement can provide for an explicit cache tier (e.g., cache-aside architecture) that applications are aware about, wherein decision are made explicitly which objects to put/remove in such applications (as opposed to an implicit cache wherein application do not know the existence of the cache).Type: GrantFiled: January 20, 2015Date of Patent: April 24, 2018Assignee: Microsoft Technology Licensing, LLCInventors: Muralidhar Krishnaprasad, Anil K. Nori, Subramanian Muralidhar
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Publication number: 20150134911Abstract: Systems and methods that aggregate memory capacity of multiple computers into a single unified cache, via a layering arrangement. Such layering arrangement is scalable to a plurality of machines and includes a data manager component, an object manager component and a distributed object manager component, which can be implemented in a modular fashion. Moreover, the layering arrangement can provide for an explicit cache tier (e.g., cache-aside architecture) that applications are aware about, wherein decision are made explicitly which objects to put/remove in such applications (as opposed to an implicit cache wherein application do not know the existence of the cache).Type: ApplicationFiled: January 20, 2015Publication date: May 14, 2015Applicant: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Muralidhar Krishnaprasad, Anil K. Nori, Subramanian Muralidhar
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Patent number: 9015662Abstract: Embodiments are directed to declaratively managing software applications, dynamically applying configuration changes to a specified software application based on a service level objective (SLO) and to efficiently performing an impact analysis for a specified service level agreement SLO.Type: GrantFiled: March 6, 2014Date of Patent: April 21, 2015Assignee: Microsoft Technology Licensing, LLCInventors: John M. Oslake, Subramanian Muralidhar, Richard Shawn Bice, Jeffrey Robert Currier, Narayan Mohanrao Nevrekar, Kenneth Van Hyning
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Patent number: 8943271Abstract: Systems and methods that aggregate memory capacity of multiple computers into a single unified cache, via a layering arrangement. Such layering arrangement is scalable to a plurality of machines and includes a data manager component, an object manager component and a distributed object manager component, which can be implemented in a modular fashion. Moreover, the layering arrangement can provide for an explicit cache tier (e.g., cache-aside architecture) that applications are aware about, wherein decision are made explicitly which objects to put/remove in such applications (as opposed to an implicit cache wherein application do not know the existence of the cache).Type: GrantFiled: January 30, 2009Date of Patent: January 27, 2015Assignee: Microsoft CorporationInventors: Muralidhar Krishnaprasad, Anil K. Nori, Subramanian Muralidhar
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Publication number: 20140189639Abstract: Embodiments are directed to declaratively managing software applications, dynamically applying configuration changes to a specified software application based on a service level objective (SLO) and to efficiently performing an impact analysis for a specified service level agreement SLO.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Inventors: John M. Oslake, Subramanian Muralidhar, Richard Shawn Bice, Jeffrey Robert Currier, Narayan Mohanrao Nevrekar, Kenneth Van Hyning
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Patent number: 8707254Abstract: Embodiments are directed to declaratively managing software applications, dynamically applying configuration changes to a specified software application based on a service level objective (SLO) and to efficiently performing an impact analysis for a specified service level agreement SLO.Type: GrantFiled: April 6, 2012Date of Patent: April 22, 2014Assignee: Microsoft CorporationInventors: John M. Oslake, Subramanian Muralidhar, Richard Shawn Bice, Jeffrey Robert Currier, Narayan Mohanrao Nevrekar, Kenneth Van Hyning
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Publication number: 20130268914Abstract: Embodiments are directed to declaratively managing software applications, dynamically applying configuration changes to a specified software application based on a service level objective (SLO) and to efficiently performing an impact analysis for a specified service level agreement SLO.Type: ApplicationFiled: April 6, 2012Publication date: October 10, 2013Applicant: MICROSOFT CORPORATIONInventors: John M. Oslake, Subramanian Muralidhar, Richard Shawn Bice, Jeffrey Robert Currier, Narayan Mohanrao Nevrekar, Kenneth Van Hyning
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Patent number: 8375018Abstract: Techniques for exchanging data are provided herein. An “open” data type is established on a computer system to define the structure of data. The open data type includes one or more predefined properties, and enables one or more extension properties to be optionally included. Data that is defined according to the open data type includes data values for the predefined properties, and may optionally include data values for extension properties. A second computer system may consider the extension properties to be extension properties or predefined properties of a data type known at the second computer system. In this manner, the type system that is used to exchange data between nodes need not necessarily be commonly known among the nodes, and/or may be dynamically modified, even for a particular data instance. Furthermore, queries may be performed against the data that query against the predefined properties and/or extension properties.Type: GrantFiled: June 12, 2009Date of Patent: February 12, 2013Assignee: Microsoft CorporationInventors: Pablo Castro, Andrew Conrad, Michael Flasko, Pratik Patel, Subramanian Muralidhar, Marcelo Lopez Ruiz
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Patent number: 8261020Abstract: In response to a request including a state object, which can indicate a state of an enumeration of a cache, the enumeration can be continued by using the state object to identify and send cache data. Also, an enumeration of cache units can be performed by traversing a data structure that includes object nodes, which correspond to cache units, and internal nodes. An enumeration state stack can indicate a current state of the enumeration, and can include state nodes that correspond to internal nodes in the data structure. Additionally, a cache index data structure can include a higher level table and a lower level table. The higher level table can have a leaf node pointing to the lower level table, and the lower level table can have a leaf node pointing to one of the cache units. Moreover, the lower level table can be associated with a tag.Type: GrantFiled: May 21, 2009Date of Patent: September 4, 2012Assignee: Microsoft CorporationInventors: Muralidhar Krishnaprasad, Sudhir Mohan Jorwekar, Sharique Muhammed, Subramanian Muralidhar, Anil K. Nori
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Patent number: 8176256Abstract: A cache region can be created in a cache in response to receiving a cache region creation request from an application. A storage request from the application can identify the cache region and one or more objects to be stored in the cache region. Those objects can be stored in the cache region in response to receiving the storage request.Type: GrantFiled: May 14, 2009Date of Patent: May 8, 2012Assignee: Microsoft CorporationInventors: Muralidhar Krishnaprasad, Anil K. Nori, Subramanian Muralidhar, Sudhir Mohan Jorwekar, Lakshmi Suresh Goduguluru
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Patent number: 8161244Abstract: A first portion of an identifier can be used to assign the identifier to a slot in a first directory. The identifier can identify a cache unit in a cache. It can be determined whether assignment of the identifier to the slot in the first directory will result in the identifier and one or more other identifiers being assigned to the same slot in the first directory. If so, then the technique can include (1) using a second portion of the identifier to assign the identifier to a slot in a second directory; and (2) assigning the one or more other identifiers to one or more slots in the second directory. In addition, it can be determined whether a directory in a cache lookup data structure includes more than one pointer. If not, then a parent pointer that points to the subject directory can be removed.Type: GrantFiled: May 13, 2009Date of Patent: April 17, 2012Assignee: Microsoft CorporationInventors: Muralidhar Krishnaprasad, Sudhir Mohan Jorwekar, Sharique Muhammed, Subramanian Muralidhar, Anil K. Nori
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Patent number: 7877397Abstract: Systems and methods that translate queries defined by an entity model, to a dialect recognizable by storage provider (e.g., relational store). A bridge component facilitates translation of a rich object structure into flat relational constructs, which can then be executed by a relational store. Accordingly, queries defined by applications in terms of entity concepts can readily be employed in conjunction with relational data stores. Similarly, results obtained from executing the query can be converted back to a form understandable by the application.Type: GrantFiled: July 30, 2007Date of Patent: January 25, 2011Assignee: Microsoft CorporationInventors: Ramesh Nagarajan, Subramanian Muralidhar, Stephen Frederick Starck, Sean B. House, Simon Cavanagh, Fabio Meireles Fernandez Valbuena, Katica Iceva
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Patent number: 7853619Abstract: Methods and apparatus for enabling a plurality of table columns arranged to be associated with large objects (LOBs) to share a single LOB data segment within a database are disclosed. According to one aspect of the present invention, a method for allocating space associated with at least a first column arranged to accommodate LOB data and a second column arranged to accommodate LOB data includes allocating a first LOB data segment. The method also includes associating both the first column and the second column with the first LOB data segment.Type: GrantFiled: September 23, 2004Date of Patent: December 14, 2010Assignee: Oracle International CorporationInventors: Qin Yu, Muralidhar Krishnaprasad, Subramanian Muralidhar, Thomas Chang, Susan Kotsovolos