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A story about how I dug into the PostgreSQL sources to write my own WAL receiver

https://medium.com/@mailbox.sq7/a-long-story-about-how-i-dug-into-the-postgresql-source-code-to-write-my-own-wal-receiver-and-what-53fd251d8f25
17•alzhi7•21h ago

Comments

samokhvalov•1h ago
nice work

I wonder if you considered WAL-G, which is also written in Go

and has this: https://github.com/wal-g/wal-g/blob/master/docs/PostgreSQL.m...

JSR_FDED•5m ago
You really get a sense for how much the author learned from this experience. And I like how he developed a respect for C.

Given all the corner cases he describes, it seems like a good example of something you would never ever want to vibe code.

NIST scientists create 'any wavelength' lasers

https://www.nist.gov/news-events/news/2026/04/any-color-you-nist-scientists-create-any-wavelength...
161•rbanffy•4h ago•70 comments

Anonymous request-token comparisons from Opus 4.6 and Opus 4.7

https://tokens.billchambers.me/leaderboard
420•anabranch•9h ago•427 comments

The electromechanical angle computer inside the B-52 bomber's star tracker

https://www.righto.com/2026/04/B-52-star-tracker-angle-computer.html
267•NelsonMinar•9h ago•77 comments

College instructor turns to typewriters to curb AI-written work

https://sentinelcolorado.com/uncategorized/a-college-instructor-turns-to-typewriters-to-curb-ai-w...
127•gnabgib•6h ago•132 comments

Modern Common Lisp with FSet

https://fset.common-lisp.dev/Modern-CL/Top_html/index.html
84•larve•3d ago•5 comments

Optimizing Ruby Path Methods

https://byroot.github.io/ruby/performance/2026/04/18/faster-paths.html
50•weaksauce•4h ago•19 comments

Why Japan has such good railways

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306•RickJWagner•13h ago•306 comments

Migrating from DigitalOcean to Hetzner

https://isayeter.com/posts/digitalocean-to-hetzner-migration/
677•yusufusta•12h ago•350 comments

State of Kdenlive

https://kdenlive.org/news/2026/state-2026/
334•f_r_d•13h ago•112 comments

Thoughts and feelings around Claude Design

https://samhenri.gold/blog/20260418-claude-design/
221•cdrnsf•6h ago•153 comments

NASA Shuts Off Instrument on Voyager 1 to Keep Spacecraft Operating

https://science.nasa.gov/blogs/voyager/2026/04/17/nasa-shuts-off-instrument-on-voyager-1-to-keep-...
56•sohkamyung•1h ago•17 comments

Zero-Copy GPU Inference from WebAssembly on Apple Silicon

https://abacusnoir.com/2026/04/18/zero-copy-gpu-inference-from-webassembly-on-apple-silicon/
11•agambrahma•2h ago•7 comments

Dad brains: How fatherhood rewires the male mind

https://www.bbc.com/future/article/20260417-fatherhood-how-the-male-brain-and-body-prepare-for-ch...
66•tchalla•3h ago•26 comments

Michael Rabin has died

https://en.wikipedia.org/wiki/Michael_O._Rabin
387•tkhattra•3d ago•80 comments

Show HN: MDV – a Markdown superset for docs, dashboards, and slides with data

https://github.com/drasimwagan/mdv
94•drasim•10h ago•34 comments

Sumida Aquarium Posts 2026 Penguin Relationship Chart, with Drama and Breakups

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164•Lwrless•3d ago•5 comments

Updating Gun Rocket through 10 years of Unity Engine

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3•tyleo•2d ago•0 comments

My first impressions on ROCm and Strix Halo

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11•random_•3h ago•0 comments

A story about how I dug into the PostgreSQL sources to write my own WAL receiver

https://medium.com/@mailbox.sq7/a-long-story-about-how-i-dug-into-the-postgresql-source-code-to-w...
17•alzhi7•21h ago•2 comments

Floating Point Fun on Cortex-M Processors

https://danielmangum.com/posts/floating-point-cortex-m/
36•hasheddan•1d ago•1 comments

Scientists discover “cleaner ants” that groom giant ants in Arizona desert

https://www.sciencedaily.com/releases/2026/04/260414075641.htm
76•t-3•3d ago•26 comments

PgQue: Zero-Bloat Postgres Queue

https://github.com/NikolayS/pgque
84•gmcabrita•8h ago•12 comments

UpCodes (YC S17) is hiring SDRs to help make construction more productive

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1•Old_Thrashbarg•8h ago

Understanding the FFT Algorithm (2013)

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63•peter_d_sherman•3d ago•6 comments

80386 Memory Pipeline

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87•wicket•4d ago•12 comments

Amiga Graphics Archive

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231•sph•19h ago•71 comments

Show HN: SmallDocs – Markdown without the frustrations

54•FailMore•3d ago•23 comments

Fuzix OS

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76•DeathArrow•10h ago•24 comments

Brunost: The Nynorsk Programming Language

https://lindbakk.com/blog/introducing-brunost
133•atomfinger•5d ago•72 comments

Category Theory Illustrated – Orders

https://abuseofnotation.github.io/category-theory-illustrated/04_order/
229•boris_m•18h ago•59 comments