AI-powered
podcast player
Listen to all your favourite podcasts with AI-powered features
4min chapter
UUID
Postgres FM
How to Hide a Random Number in a Social Network
We wanted some random numbers but like not real random numbers. So if you take two mutually prime numbers and just multiply sequence value by one of them, you will have like looking like kind of random numbers but it will not be really random numbers. We used this approach for all our surrogate primary keys. And that's it. It was a single primary. But in the second social network, I co-founded a few years ago, later. We used the same approach and then we ended up having a real nasty problem for the first time. When your table is growing very fast, 2.1 billion records if you use integer 4 primary key. You cannot insert, POSGIS cannot insert
00:00
Transcript
Episode notes
Get the Snipd
podcast app
Unlock the knowledge in podcasts with the podcast player of the future.
AI-powered
Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode
Save any
moment
Hear something you like? Tap your headphones to save it with AI-generated key takeaways
Share
& Export
Send highlights to Twitter, WhatsApp or export them to Notion, Readwise & more
AI-powered
podcast player
Listen to all your favourite podcasts with AI-powered features
Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode