GSoC 2026: Call for Mentors, Project Ideas and Project Idea Reviews

Hi hackers,

We've been working on the PostgreSQL GSoC 2026 project ideas page and would love your input:

https://wiki.postgresql.org/wiki/GSoC_2026

As usual, GSoC is looking for volunteers ready to mentor projects. If any project interests you and you'd be willing to guide a contributor through it, please reach out. We especially need mentors with deep knowledge of the optimizer, storage layer, and monitoring infrastructure.

Have a project you've been wanting to see implemented? GSoC is a great opportunity to mentor someone through it. Add your ideas to the wiki or discuss them here or with the PostgreSQL GSoC org admins. The timeline is tight - contributor applications open March 16 and close March 31. Students will base their project proposals on ideas offered by this wiki page. Having well-defined projects with committed mentors significantly improves proposal quality.

We've researched past GSoC wikis and added several core project ideas that could use expert review:

1) Existing ideas carried forward
Several project ideas were brought over from previous years' "Still Relevant Ideas" lists. If you have expertise in these areas, please verify they're still relevant and appropriately scoped:
* Join Removal Based on Foreign Key Constraints
* Parallel GiST Index Build
* Per-Datatype TOAST Slicing Strategies
* ALTER TABLE SET LOGGED/UNLOGGED Performance
* Global Temporary Tables
* Regression Test Coverage Improvements
* Autonomous Transactions

2) New proposals
* B-tree Index Bloat Reduction (Page Merge). That's a bit controversial as a student work, we have serveral experimental ideas that need research.
* Monitoring Tools Performance (pg_stat_statements lock contention)
* Wait Event Coverage Improvements

Also you can contact gsoc-mentors(at)lists(dot)postgresql(dot)org if you'd like to get involved. Or we can just discuss things here.

Best regards, Andrey Borodin.