GSoC B-Tree Merge

Nik and Michael are joined by Salma El-Sayed and Kirk Wolak to discuss their in-progress and very ambitious Google Summer of Code project around adding Btree Merge support to Postgres.

Here are some links to things they mentioned:

• Salma El-Sayed postgres.fm/people/salma-el-sayed
• Kirk Wolak postgres.fm/people/kirk-wolak
• Google Summer of Code summerofcode.withgoogle.com
• PostgreSQL GSoC 2026 project ideas wiki.postgresql.org/wiki/GSoC_2026
• CMU Intro to Database Systems youtube.com/playlist?list=PLSE8ODhjZXjYMAgsGH-…
• Kirk, NIK, and Andrey’s Hacking Postgres sessions on YouTube youtube.com/playlist?list=PLH8y1BNPAKjKDdJA7sD…
• B-tree Index Bloat Reduction - Approach & Questions (Hackers thread, with patches) postgresql.org/message-id/flat/CANBEAPFq3YAOyd…
• B-tree merge visualizer kirkw.github.io/explainers/btree-merge-explain…

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What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, (postgres.fm/people) or by commenting on our Google doc (docs.google.com/document/d/1PNGSn_d0A7gTR4C0p6…)!

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Postgres FM is produced by:
• Michael Christofides, founder of pgMustard (pgmustard.com)
• Nikolay Samokhvalov, founder of Postgres.ai (postgres.ai)

With credit to:
• Jessie Draws for the elephant artwork