Nikolay and Michael discuss partitioning by ULID — revisiting some of the old UUID vs bigint key debate in light of some new UUID specs, and how these can be used for partitioning (by time). 
 
Here are some links to things they mentioned:

• Nikolay’s episode on UUID (for primary keys) https://postgres.fm/episodes/uuid 
• Postgres TV hacking session with Andrey and Kirk: https://www.youtube.com/watch?v=YPq_hiOE-N8
• UUIDv7 patch https://commitfest.postgresql.org/43/4388/ 
• Use ULID Idempotency Keys (tip 6 in this blog post from Shopify) https://shopify.engineering/building-resilient-payment-systems 
• Nikolay’s howto post on UUID v7 and partitioning with TimescaleDB https://gitlab.com/postgres-ai/postgresql-consulting/postgres-howtos/-/blob/main/0065_uuid_v7_and_partitioning_timescaledb.md 
• Hussein Nasser’s YouTube video about the above https://www.youtube.com/watch?v=f53-Iw_5ucA 
• UUID proposal that includes UUIDv7 and UUIDv8 (work in progress): https://datatracker.ietf.org/doc/draft-ietf-uuidrev-rfc4122bis/history/  
• James Blackwood-Sewell advice on more elegant solution using TimescaleDB https://twitter.com/jamessewell/status/1730125437903450129 
• ULIDs and Stripe IDs (section of Identity Crisis blog post by Brandur) https://brandur.org/nanoglyphs/026-ids#ulids 
• Crunchy Bridge changed their default random_page_cost to 1.1 🙌 https://twitter.com/brandur/status/1720477470116422028 
• UUIDs vs serials for keys (newer post from Christophe Pettus) https://thebuild.com/blog/2023/02/16/uuids-vs-serials-for-keys/ 

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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 brought to you by:

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

With special thanks to:

• Jessie Draws for the amazing artwork