Last took part in 2025

SQLancer

Automatically testing database systems

Contributors in 2026

–

Not taking part

Projects since 2016

3 a cycle on average

Cycles

2 of 11

First in 2023

Rank in 2026

–

By contributors

Mentors

for 4 projects in 2025

Contributors per cycle

Accepted projects each year, against the median organization that year

View as table

Each one has its own page of organizations and trends

Is SQLancer in GSoC 2026?: No. It last took part in 2025.
How long has it taken part?: 2 of 11 cycles since 2016, first in 2023.
How many contributors does it usually take?: 3 a cycle on average, 6 in total. Its largest cycle was 2025, with 4.
What does it build with?: Java, SQL.

Integrating Published Testing Approaches into SQLancer
Dongqiao HuangMentored by Jiansen Song
SQLancer is a tool to automatically test Database Management Systems (DBMSs) in order to find bugs in their implementation. That is, it finds bugs in...
Project
Enhancing SQLancer with External Reducer Support and Hierarchical Delta Debugging
Jinhui XuMentored by Kabilan Mahathevan
SQLancer’s current test case reduction framework faces three key limitations: (1) tight coupling between internal reducers (Delta Debugging and...
Project
Supporting Automated Scripts for DBMS Deployment
Leyao LiuMentored by Suyang Zhong
This proposal addresses the complexity of deploying DBMS instances for testing with SQLancer—an issue that makes it challenging for beginners and...
Project
Adding Support for the Latest Postgres Version
Yaojie JiaMentored by Robins Tharakan
SQLancer is a tool that automatically tests DBMS in order to find bugs in their implementations. As of right now, SQLancer supports many great...
Project