MVCC

Nik and Michael are joined by Radim Marek to discuss MVCC, including his recent article on how Postgres chose to implement it compared to other systems.

Here are some links to things they mentioned:

• Radim Marek https://postgres.fm/people/radim-marek
• BoringSQL https://boringsql.com
• PostgreSQL's MVCC is bad. So is everyone else's (blog post by Radim) https://boringsql.com/posts/mvcc-bad-bad/
• PostgreSQL MVCC documentation https://www.postgresql.org/docs/current/mvcc-intro.html
• PostgreSQL Storage Internals series by Radim https://boringsql.com/guides/postgresql-storage-internals/
• PgQue https://github.com/NikolayS/pgque
• The next ten years of Postgres (talk slides by Álvaro Herrera) https://www.postgresql.eu/events/pgconfde2026/sessions/session/7744/slides/866/edb-keynote-pgconfde-2026.pdf
• Episode on RegreSQL https://postgres.fm/episodes/regresql
• DryRun MCP https://github.com/boringsql/dryrun

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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, or by commenting on our Google doc!

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Postgres FM is produced by:

• Michael Christofides, founder of pgMustard
• Nikolay Samokhvalov, founder of Postgres.ai

With credit to:

• Jessie Draws for the elephant artwork