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minikeyvalue

https://github.com/commaai/minikeyvalue/tree/prod
2•tosh•2m ago•0 comments

Neomacs: GPU-accelerated Emacs with inline video, WebKit, and terminal via wgpu

https://github.com/eval-exec/neomacs
1•evalexec•7m ago•0 comments

Show HN: Moli P2P – An ephemeral, serverless image gallery (Rust and WebRTC)

https://moli-green.is/
2•ShinyaKoyano•11m ago•1 comments

How I grow my X presence?

https://www.reddit.com/r/GrowthHacking/s/UEc8pAl61b
2•m00dy•12m ago•0 comments

What's the cost of the most expensive Super Bowl ad slot?

https://ballparkguess.com/?id=5b98b1d3-5887-47b9-8a92-43be2ced674b
1•bkls•13m ago•0 comments

What if you just did a startup instead?

https://alexaraki.substack.com/p/what-if-you-just-did-a-startup
3•okaywriting•20m ago•0 comments

Hacking up your own shell completion (2020)

https://www.feltrac.co/environment/2020/01/18/build-your-own-shell-completion.html
2•todsacerdoti•23m ago•0 comments

Show HN: Gorse 0.5 – Open-source recommender system with visual workflow editor

https://github.com/gorse-io/gorse
1•zhenghaoz•23m ago•0 comments

GLM-OCR: Accurate × Fast × Comprehensive

https://github.com/zai-org/GLM-OCR
1•ms7892•24m ago•0 comments

Local Agent Bench: Test 11 small LLMs on tool-calling judgment, on CPU, no GPU

https://github.com/MikeVeerman/tool-calling-benchmark
1•MikeVeerman•25m ago•0 comments

Show HN: AboutMyProject – A public log for developer proof-of-work

https://aboutmyproject.com/
1•Raiplus•25m ago•0 comments

Expertise, AI and Work of Future [video]

https://www.youtube.com/watch?v=wsxWl9iT1XU
1•indiantinker•26m ago•0 comments

So Long to Cheap Books You Could Fit in Your Pocket

https://www.nytimes.com/2026/02/06/books/mass-market-paperback-books.html
3•pseudolus•26m ago•1 comments

PID Controller

https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller
1•tosh•30m ago•0 comments

SpaceX Rocket Generates 100GW of Power, or 20% of US Electricity

https://twitter.com/AlecStapp/status/2019932764515234159
2•bkls•31m ago•0 comments

Kubernetes MCP Server

https://github.com/yindia/rootcause
1•yindia•32m ago•0 comments

I Built a Movie Recommendation Agent to Solve Movie Nights with My Wife

https://rokn.io/posts/building-movie-recommendation-agent
4•roknovosel•32m ago•0 comments

What were the first animals? The fierce sponge–jelly battle that just won't end

https://www.nature.com/articles/d41586-026-00238-z
2•beardyw•40m ago•0 comments

Sidestepping Evaluation Awareness and Anticipating Misalignment

https://alignment.openai.com/prod-evals/
1•taubek•40m ago•0 comments

OldMapsOnline

https://www.oldmapsonline.org/en
1•surprisetalk•43m ago•0 comments

What It's Like to Be a Worm

https://www.asimov.press/p/sentience
2•surprisetalk•43m ago•0 comments

Don't go to physics grad school and other cautionary tales

https://scottlocklin.wordpress.com/2025/12/19/dont-go-to-physics-grad-school-and-other-cautionary...
2•surprisetalk•43m ago•0 comments

Lawyer sets new standard for abuse of AI; judge tosses case

https://arstechnica.com/tech-policy/2026/02/randomly-quoting-ray-bradbury-did-not-save-lawyer-fro...
5•pseudolus•43m ago•0 comments

AI anxiety batters software execs, costing them combined $62B: report

https://nypost.com/2026/02/04/business/ai-anxiety-batters-software-execs-costing-them-62b-report/
1•1vuio0pswjnm7•43m ago•0 comments

Bogus Pipeline

https://en.wikipedia.org/wiki/Bogus_pipeline
1•doener•45m ago•0 comments

Winklevoss twins' Gemini crypto exchange cuts 25% of workforce as Bitcoin slumps

https://nypost.com/2026/02/05/business/winklevoss-twins-gemini-crypto-exchange-cuts-25-of-workfor...
2•1vuio0pswjnm7•45m ago•0 comments

How AI Is Reshaping Human Reasoning and the Rise of Cognitive Surrender

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6097646
3•obscurette•45m ago•0 comments

Cycling in France

https://www.sheldonbrown.com/org/france-sheldon.html
2•jackhalford•47m ago•0 comments

Ask HN: What breaks in cross-border healthcare coordination?

1•abhay1633•47m ago•0 comments

Show HN: Simple – a bytecode VM and language stack I built with AI

https://github.com/JJLDonley/Simple
2•tangjiehao•50m ago•0 comments
Open in hackernews

Ask HN: I'm a New PostgreSQL Hacker – What Problems Do You Face with Postgres?

7•DumBthInker007•9mo ago
Hi HN,

I'm a developer diving deep into PostgreSQL internals, aiming to contribute meaningfully to the project. I have a strong grasp of core components like the internal architecture, physical replication, WAL (Write-Ahead Logging), and buffer management. I'm now expanding into areas like logical replication, asynchronous I/O (AIO), the optimizer, and beyond.

To learn and grow as a Postgres hacker, I want to hear directly from you—PostgreSQL users—about the problems you face, big or small. These could be operational challenges, performance bottlenecks, confusing behaviors, missing features, or friction points in your workflows.

For me, it's a win-win: you get a contributor trying to tackle real problems, and I get to deepen my understanding by working on issues that matter in the real world. If a problem resonates with me, I’ll do my best to investigate, learn, and potentially create a patch to address it.

Thanks—and I look forward to hearing from you!

Comments

znpy•9mo ago
I'd like to see something like MySQL's Group Replication in PostgreSQL.

HA is still a wheel you have to re-invent yourself every time with PostgreSQL.

References for what i'm talking about:

- Group Replication: https://dev.mysql.com/doc/refman/8.4/en/group-replication.ht...

DumBthInker007•9mo ago
thanks for the quick reply, will surely look into it.
znpy•9mo ago
You're welcome. The bigger picture is probably this: https://dev.mysql.com/doc/refman/8.0/en/mysql-innodb-cluster...
DumBthInker007•9mo ago
thanks for sharing.
WilcoKruijer•9mo ago
I’d like to see a true monotonic counter in Postgres. Serials can increment out of order when multiple transactions are active. We can obtain the WAL LSN, but it’s not related to the currently active transaction. I really like FoundationDB’s versionstamp, would be great to have that in Postgres.
DumBthInker007•9mo ago
Thanks for the reply,will surely look into it.
dapperdrake•9mo ago
How is a "true monotonic counter" supposed to interact with atomicity and isolation of transactions? Sounds like a global bottleneck.

Is uniqueness sufficient or is it really required to step through all integers without missing any?

EDIT: Missing primary keys in-between also bothers me, however, never found a decent solution for this at scale.

hyperman1•9mo ago
Parallell insert. I can easily saturate a CPU with insert statements, with io very low.
DumBthInker007•9mo ago
Hi thanks for the reply ,i guess there was some ongoing work for this and for some reason it didn't continued this is the thread https://www.postgresql.org/message-id/flat/CAJcOf-cXnB5cnMKq... if you are interested in, but for sure i will look into this(added to my list:).
hyperman1•9mo ago
What can I say, except thank you very much.
dapperdrake•9mo ago
That seems like an unintuitive consequence. Saturating disk would have been obvious. But CPU?

Does anything about the INSERT pattern seem "special"? Or does it happen for many different "kinds of INSERT statements"?

I_am_tiberius•9mo ago
1. I'd like a native way to scale horizontally based on tenant ids without using citus. 2. array constraints (foreign keys) -> meaning that each item in the array references an id in another table.
cssanchez•9mo ago
My experience with PG ended a few years ago. The thing that killed PG for me is the lack of collation for searches. I haven't tested since the last updates that mentioned something along these lines, so this may have improved.

PG for years relied on unaccent which is not a true solution as it requires manually storing two versions of a text (the original and the un-accented one) and handle indexes + searches manually for each field... Not to mention unaccent itself is an extension you have to install. Whereas collation is built-in and it just works by handling it all under the hood in SQL Server. This feature alone is worth switching databases for my use cases.

That and the updates being a royal pain.

DumBthInker007•9mo ago
Thanks for sharing.