New core member. He is planning to contribute to subquery extension, as well as system function support.
He is contributing to various code including new distribution function, merge with PostgreSQL 9.0.3 source code, etc. He also contributed to extend table distribution feature, as well as stabilizing whole XC behavior.
He is contributing Postgres-XC planner and distributed query execution, including distributed grouping and aggregation, distributed sorting, prepared statements, distributed join processing. He also reviewed various features in the areas of DML processing.
He is contributing to whole roadmap, application requirements as well as quality assurance and performance maintenance.
He is contributing to JDBC-related tests. Also contributing to our buildfarm integration and operation.
Project leader and architect. His background includes object relational database engine (UniSQL) and PostgreSQL development. He designed basic architecture of GTM and GTM-proxy. He is also the developer of pgxc_ctl (XC cluster configuration and operation tool), GTM-Standby and other HA feature. He also integrated Postgres-XC reference manual with PostgreSQL reference manual.
Coordinator feature developer. He has developed a couple of GTM features, pooler extension and DDL synchronization. He helped in modifying DBT-1 benchmark for Postgres-XC. He also contributed to enhance pgbench in PostgreSQL 9.0.
Binary buiding for releases. He is also developping binary packages of PostgreSQL.
As a Coordinator developer, he has worked on planner and locator extensions. He is also the main architect of GridSQL database cluster.
He has worked on Data Node, connection pooling and cursor support He is also GridSQL developer and is now developping aggregate functions and other cross-node operation.
Global Transaction Manager developer. He is well known as HOT developer in PostgreSQL. He is also helping in source code review and PostgreSQL internal, including BARRIER which harmonizes recovery point among servers.
GTM contributor. Contributed many fixes at GTM especially for release 1.1.