Patents by Inventor Zhongxian Gu
Zhongxian Gu 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: 20230208906Abstract: A system for controlling access to a downstream database management system (DMS) is provided. The system comprises an interface to maintain client connections with a plurality of upstream clients; a pooling component to establish a dynamic pool, and to selectively route each client connection to a pool; within each pool maintaining a queue comprising client database requests associated with particular client connections; and selectively granting access to the client database requests within each queue to at least one downstream DMS.Type: ApplicationFiled: February 20, 2023Publication date: June 29, 2023Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller
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Patent number: 11625414Abstract: A method for providing database management system support to a source application configured to operate with a source database management system Is provided. The method comprises detecting database management system communications issued by the source application to the source database management system; and responsive to said database management systems communications, impersonating the source database management system to the source application.Type: GrantFiled: August 20, 2020Date of Patent: April 11, 2023Assignee: DATOMETRY, INC.Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller, John Eshleman
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Patent number: 11588883Abstract: A system for controlling access to a downstream database management system (DMS) is provided. The system comprises an interface to maintain client connections with a plurality of upstream clients; a pooling component to establish a dynamic pool, and to selectively route each client connection to a pool; within each pool maintaining a queue comprising client database requests associated with particular client connections; and selectively granting access to the client database requests within each queue to at least one downstream DMS.Type: GrantFiled: November 22, 2019Date of Patent: February 21, 2023Assignee: DATOMETRY, INC.Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller
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Patent number: 11263212Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic partition selection. One of the methods includes receiving a representation of a query plan generated for a query, wherein the query plan includes a dynamic scan operator that represents a first computing node obtaining tuples of one or more partitions of a table from storage and transferring the tuples to a second computing node that executes a parent operator of the dynamic scan operator. A partition selector operator is generated corresponding to the dynamic scan operator. A location in the query plan is determined for the partition selector operator. A modified query plan is generated having the partition selector operator at the determined location.Type: GrantFiled: December 12, 2019Date of Patent: March 1, 2022Assignee: Pivotal Software, Inc.Inventors: Lyublena Rosenova Antova, Amr El-Helw, Mohamed F. Soliman, Zhongxian Gu, Michail Petropoulos, Florian Michael Waas
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Publication number: 20210034636Abstract: A method for providing database management system support to a source application configured to operate with a source database management system Is provided. The method comprises detecting database management system communications issued by the source application to the source database management system; and responsive to said database management systems communications, impersonating the source database management system to the source application.Type: ApplicationFiled: August 20, 2020Publication date: February 4, 2021Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller, John Eshleman
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Patent number: 10762100Abstract: A method for providing database management system support to a source application configured to operate with a source database management system Is provided. The method comprises detecting database management system communications issued by the source application to the source database management system; and responsive to said database management systems communications, impersonating the source database management system to the source application.Type: GrantFiled: April 8, 2019Date of Patent: September 1, 2020Assignee: DATOMETRY, INC.Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller, John Eshleman
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Publication number: 20200169600Abstract: A system for controlling access to a downstream database management system (DMS) is provided. The system comprises an interface to maintain client connections with a plurality of upstream clients; a pooling component to establish a dynamic pool, and to selectively route each client connection to a pool; within each pool maintaining a queue comprising client database requests associated with particular client connections; and selectively granting access to the client database requests within each queue to at least one downstream DMS.Type: ApplicationFiled: November 22, 2019Publication date: May 28, 2020Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller
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Patent number: 10628438Abstract: A method for providing interoperability between a plurality of database management system. The method comprises a server communicably connected to a plugin-application; receiving, from the source application, a connection request; intercepting communications issued by the source application to a source database management system; and responsive to said intercepted communications, impersonating the source database management system as a target database management system.Type: GrantFiled: June 26, 2018Date of Patent: April 21, 2020Assignee: DATOMETRY, INC.Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller, John Eshleman
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Patent number: 10594779Abstract: A system for controlling access to a downstream database management system (DMS) is provided. The system comprises an interface to maintain client connections with a plurality of upstream clients; a pooling component to establish a dynamic pool, and to selectively route each client connection to a pool; within each pool maintaining a queue comprising client database requests associated with particular client connections; and selectively granting access to the client database requests within each queue to at least one downstream DMS.Type: GrantFiled: August 29, 2016Date of Patent: March 17, 2020Assignee: DATOMETRY, INC.Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller
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Patent number: 10521428Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic partition selection. One of the methods includes receiving a representation of a query plan generated for a query, wherein the query plan includes a dynamic scan operator that represents a first computing node obtaining tuples of one or more partitions of a table from storage and transferring the tuples to a second computing node that executes a parent operator of the dynamic scan operator. A partition selector operator is generated corresponding to the dynamic scan operator. A location in the query plan is determined for the partition selector operator. A modified query plan is generated having the partition selector operator at the determined location.Type: GrantFiled: April 17, 2017Date of Patent: December 31, 2019Assignee: Pivotal Software, Inc.Inventors: Lyublena Rosenova Antova, Amr El-Helw, Mohamed F. Soliman, Zhongxian Gu, Michail Petropoulos, Florian Michael Waas
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Patent number: 10509783Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic partition selection. One of the methods includes receiving a representation of a query plan generated for a query, wherein the query plan includes a dynamic scan operator that represents a first computing node obtaining tuples of one or more partitions of a table from storage and transferring the tuples to a second computing node that executes a parent operator of the dynamic scan operator. A partition selector operator is generated corresponding to the dynamic scan operator. A location in the query plan is determined for the partition selector operator. A modified query plan is generated having the partition selector operator at the determined location.Type: GrantFiled: April 17, 2017Date of Patent: December 17, 2019Assignee: Pivotal Software, Inc.Inventors: Lyublena Rosenova Antova, Amr El-Helw, Mohamed F. Soliman, Zhongxian Gu, Michail Petropoulos, Florian Michael Waas
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Publication number: 20190303379Abstract: A method for providing database management system support to a source application configured to operate with a source database management system Is provided. The method comprises detecting database management system communications issued by the source application to the source database management system and responsive to said database management systems communications, impersonating the source database management system to the source application.Type: ApplicationFiled: April 8, 2019Publication date: October 3, 2019Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller, John Eshleman
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Patent number: 10255336Abstract: A method for providing database management system support to a source application configured to operate with a source database management system Is provided. The method comprises detecting database management system communications issued by the source application to the source database management system; and responsive to said database management systems communications, impersonating the source database management system to the source application.Type: GrantFiled: May 9, 2016Date of Patent: April 9, 2019Assignee: DATOMETRY, INC.Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller, John Eshleman
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Patent number: 10140336Abstract: Query optimizer accuracy is tested by measuring the actual execution times on a database of each of a plurality of alternative query plans for each of a plurality of queries, first ranking the plans by the actual execution times, then ranking the plans by estimated execution times, and correlating the two rankings by computing a rank correlation metric. The rank correlation metric is normalized so that different optimizers can be objectively compared.Type: GrantFiled: February 11, 2016Date of Patent: November 27, 2018Assignee: Pivotal Software, Inc.Inventors: Zhongxian Gu, Mohamed F. Soliman, Florian Michael Waas
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Publication number: 20180329916Abstract: A method for providing interoperability between a plurality of database management system. The method comprises a server communicably connected to a plugin-application; receiving, from the source application, a connection request; intercepting communications issued by the source application to a source database management system; and responsive to said intercepted communications, impersonating the source database management system as a target database management system.Type: ApplicationFiled: June 26, 2018Publication date: November 15, 2018Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller
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Patent number: 9652496Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for dynamic partition selection. One of the methods includes receiving a representation of a query plan generated for a query, wherein the query plan includes a dynamic scan operator that represents a first computing node obtaining tuples of one or more partitions of a table from storage and transferring the tuples to a second computing node that executes a parent operator of the dynamic scan operator. A partition selector operator is generated corresponding to the dynamic scan operator. A location in the query plan is determined for the partition selector operator. A modified query plan is generated having the partition selector operator at the determined location.Type: GrantFiled: June 25, 2014Date of Patent: May 16, 2017Assignee: Pivotal Software, Inc.Inventors: Lyublena Rosenova Antova, Amr El-Helw, Mohamed Y. Soliman, Zhongxian Gu, Michail Petropoulos, Florian Michael Waas
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Publication number: 20170063936Abstract: A system for controlling access to a downstream database management system (DMS) is provided. The system comprises an interface to maintain client connections with a plurality of upstream clients; a pooling component to establish a dynamic pool, and to selectively route each client connection to a pool; within each pool maintaining a queue comprising client database requests associated with particular client connections; and selectively granting access to the client database requests within each queue to at least one downstream DMS.Type: ApplicationFiled: August 29, 2016Publication date: March 2, 2017Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller
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Publication number: 20160328442Abstract: A method for providing database management system support to a source application configured to operate with a source database management system Is provided. The method comprises detecting database management system communications issued by the source application to the source database management system and responsive to said database management systems communications, impersonating the source database management system to the source application.Type: ApplicationFiled: May 9, 2016Publication date: November 10, 2016Inventors: Florian Michael Waas, Mohamed Soliman, Zhongxian Gu, Lyublena Rosenova Antova, Tuan Anh Cao, Entong Shen, Michael Alexander Duller, John Eshleman
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Patent number: 9262477Abstract: Query optimizer accuracy is tested by measuring the actual execution times on a database of each of a plurality of alternative query plans for each of a plurality of queries, first ranking the plans by the actual execution times, then ranking the plans by estimated execution times, and correlating the two rankings by computing a rank correlation metric. The rank correlation metric is normalized so that different optimizers can be objectively compared.Type: GrantFiled: June 21, 2012Date of Patent: February 16, 2016Assignee: Pivotal Software, Inc.Inventors: Zhongxian Gu, Mohamed Soliman, Florian M. Waas