Inventor

ZHANG GUOGEN

US43 patents

⚠️ This page may combine multiple inventors who share the name “ZHANG GUOGEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ZHANG GUOGEN

IBM

Efficient XML schema validation of XML fragments using annotated automaton encoding

Method, system, and program for a join operation on a multi-column table and satellite tables including duplicate values

Annotated automaton encoding of XML schema for high performance schema validation

Method, system, and program for optimizing processing of nested functions

Eliminating superfluous namespace declarations and undeclaring default namespaces in XML serialization processing

Efficient heuristic approach in selection of materialized views when there are multiple matchings to an SQL query

Method, system, and program for optimizing the processing of queries involving set operators

Optimizing aggregate processing

Query transformation for union all view join queries using join predicates for pruning and distribution

Self-adaptive prefix encoding for stable node identifiers

Efficient XML schema validation of XML fragments using annotated automaton encoding

XML sub-document versioning method in XML databases using record storages

Archiving data in database management systems

Streaming XPath algorithm for XPath value index key generation

Order-preserving encoding formats of floating-point decimal numbers for efficient value comparison

Materialized view signature and efficient identification of materialized view candidates for queries

Efficient method of using XML value indexes without exact path information to filter XML documents for more specific XPath queries

Method, system, and program for optimizing aggregate processing

Archiving data in database management systems

Efficient locking protocol for sub-document concurrency control using prefix encoded node identifiers in XML databases

FUTUREWEI TECHNOLOGIES INC

Efficient methods and systems for consistent read in record-based multi-version concurrency control

Systems and methods to optimize multi-version support in indexes

System and method for massively parallel processing database

Database functions-defined network switch and database system

Apparatus and method for managing storage of a primary database and a replica database

Apparatus and method for managing storage of a primary database and a replica database

Systems and methods to optimize multi-version support in indexes

System and method for adaptive vector size selection for vectorized query execution

System and method for data caching in processing nodes of a massively parallel processing (MPP) database system

Apparatus and method for utilizing different data storage types to store primary and replicated database directories

Query plan and operation-aware communication buffer management

System and method for database query

Data placement control for distributed computing environment

FRANKE HUBERTUS

Encoded data processing

Encoded data processing

EBAY INC

Global distributed transactions across microservices

Key-value replication with consensus protocol

ZHANG GUOGEN

Efficient method of using XML value indexes without exact path information to filter XML documents for more specific XPath queries

Dynamic selection of optimal grouping sequence at runtime for grouping sets, rollup and cube operations in SQL query processing

CHEN YAO-CHING STEPHEN

Scalable storage schemes for native XML column data of relational tables

Packing nodes into records to store XML XQuery data model and other hierarchically structured data

TENG JAMES ZU-CHIA

XML sub-document versioning method in XML databases using record storages

HUAWEI TECH CO LTD

Disaster recovery switchover method and system, and node