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MariaDB

The fastest growing Open Source Database

MariaDB Foundation is the non-profit organization behind MariaDB Server, the fastest growing open source databases. MariaDB Foundation's mission is to ensure the continuity of the MariaDB Server code as well as foster and facilitated collaboration within the MariaDB ecosystem. As part of GSoC, MariaDB Foundation seeks to bring more developers into the MariaDB Server (and related projects) code base.

python
c/c++
perl
databases

Database Engines
SQL Features

Project ideas

15 ideas on its 2026 ideas page. Sizes: 1 small, 2 medium, 9 large. 7 mentors named.

MDEV-28395 LOAD DATA plugins large
MDEV-7924 START SLAVE UNTIL to Support Timestamps medium
MDEV-38721 one-pass HNSW search large
MDEV-33411 OPTIMIZE TABLE for graph indexes large
MDEV-31342 IS optimization: avoid temp table
MDEV-31535 optimize directory listing for informationschema tables based on privileges
MDEV-38329 Named parameters in invocation of stored routines large
MDEV-12320 configurable default authentication plugin for the server large
MDEV-38591 MEMBER OF json operator
MDEV-37591 Binlog Table Map Event to be a Sequential Index medium
MDEV-38970 Streaming window functions large
MDEV-38992 SQL Standard TABLESAMPLE clause large
MDEV-35862 Enable "inexpensive" PERFORMANCESCHEMA tables even when "performanceschema=OFF" large
MDEV-38740 JSON data type large
MDEV-39060 a tool to configure vector search small

Read the ideas page. Ideas are for scope reference; never copy one into a proposal.

History

In GSoC since 2016, 11 years. Projects per year: '16: 5, '17: 1, '18: 1, '19: 4, '20: 2, '21: 4, '22: 6, '23: 5, '24: 4, '25: 6, '26: 8.

On GitHub

21 repositories pushed to in the last year. Main languages: Python (8), C++ (2), C (1), CMake (1), JavaScript (1), Jupyter Notebook (1).

Links and channels

Website: https://mariadb.org
Ideas page: https://mariadb.com/docs/general-resources/community/contributing-participating/google-summers-of-code/google-summer-of-code-2026
Source code: https://github.com/MariaDB/server
Chat: https://mariadb.zulipchat.com/
Mailing list: https://lists.mariadb.org/postorius/lists/developers.lists.mariadb.org/

go deeper in your terminal

git-into-gsoc org "MariaDB" --shortlist
git-into-gsoc repos "MariaDB"
git-into-gsoc issues --org "MariaDB"

or ask your assistant:
"Which MariaDB repositories merge
newcomers' pull requests, and which beginner
issues are still free?"

Those commands read live data: which repositories merge outside pull requests, and which beginner issues nobody has claimed. Install in two minutes.