Zhigao TONG
资深软件工程师 at PingCAP
Earth, Texas, United States
Summary
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RockstarZhigao TONG is a senior software engineer with a decade of experience specializing in distributed databases and back-end systems, currently working at PingCAP in Texas. He has made substantive contributions to high-profile open-source projects in the TiDB ecosystem—TiKV, TiFlash and TiDB—focusing on core storage engine improvements, query execution optimizations, and low-level performance fixes. His work spans metrics and tooling for Raft-based storage, RocksDB integration tweaks, region data processing and new SQL capabilities like APPROX_COUNT_DISTINCT, demonstrating both systems-level rigor and practical feature delivery. Prior experience includes development at Huawei, underscoring a strong background in large-scale infrastructure. Colleagues value him for reliably shipping complex, low-level fixes that improve both correctness and performance in production database systems.
10 years of coding experience
1 year of employment as a software developer
Github Skills (26)
consensus10
c-language10
mysql10
key-value10
tidb10
rocksdb10
databases10
go10
sql10
performance-optimization10
distributed-transactions10
rust10
cprogramming-language10
distributed-database10
relational-databases10
Programming languages (8)
Github contributions (5)
pingcap/tiflash
Apr 2019 - Jan 2023
The analytical engine for TiDB and TiDB Cloud. Try free: https://tidbcloud.com/free-trial
Role in this project:
Back-end Developer
Back-end DeveloperContributions:183 reviews, 329 commits, 67 PRs in 3 years 9 months
Contributions summary:Zhigao primarily focused on fixing bugs and refactoring code related to the analytical engine for TiDB and TiDB Cloud. Their work involved modifying and improving the processing of region data within the storage engine, optimizing read operations, and integrating new features like the support for JSON length. The commits showcase their work on low-level systems involving code such as handling region range, pre-decoding data, or merging data between them.
analyticstidbbig-datadistributed-databasetikv
pingcap/tidb
Sep 2018 - Jan 2023
TiDB - the open-source, cloud-native, distributed SQL database designed for modern applications.
Role in this project:Backend Developer
Backend DeveloperContributions:50 reviews, 9 commits, 24 PRs in 4 years 4 months
Contributions summary:Zhigao contributed to the `pingcap/tidb` repository, a distributed SQL database. Their commits demonstrate work on core database functionalities, including implementing a new aggregate function (`APPROX_COUNT_DISTINCT`), optimizing query execution by pushing down expressions to TiFlash, and fixing issues related to numeric and time data types. The user also worked on supporting the display of TiFlash configuration and enhancing memory tracking.
ai-poweredtidbserverlesshtapreal-time
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