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Founder of GitLab battles cancer by founding companies

https://sytse.com/cancer/
119•bob_theslob646•55m ago•31 comments

Linux is an interpreter

https://astrid.tech/2026/03/28/0/linux-is-an-interpreter/
57•frizlab•1h ago•3 comments

AI overly affirms users asking for personal advice

https://news.stanford.edu/stories/2026/03/ai-advice-sycophantic-models-research
358•oldfrenchfries•4h ago•284 comments

Bitwarden Doubled Their Price. I'd Left. Here's What You Missed

https://blog.ppb1701.com/bitwarden-doubled-their-price-id-already-left-heres-what-you-missed
9•gpi•24m ago•0 comments

I Built an Open-World Engine for the N64 [video]

https://www.youtube.com/watch?v=lXxmIw9axWw
244•msephton•6h ago•30 comments

Spanish legislation as a Git repo

https://github.com/EnriqueLop/legalize-es
598•enriquelop•6h ago•186 comments

Cocoa-Way – Native macOS Wayland compositor for running Linux apps seamlessly

https://github.com/J-x-Z/cocoa-way
233•OJFord•8h ago•77 comments

I decompiled the White House's new app

https://thereallo.dev/blog/decompiling-the-white-house-app
165•amarcheschi•2h ago•53 comments

rpg.actor Game Jam

https://rpg.actor/jam
21•Kye•2h ago•0 comments

CERN uses ultra-compact AI models on FPGAs for real-time LHC data filtering

https://theopenreader.org/Journalism:CERN_Uses_Tiny_AI_Models_Burned_into_Silicon_for_Real-Time_L...
244•TORcicada•10h ago•117 comments

C++26: A User-Friednly assert() macro

https://www.sandordargo.com/blog/2026/03/25/cpp26-user-friendly-assert
43•jandeboevrie•3d ago•18 comments

Folk are getting dangerously attached to AI that always tells them they're right

https://www.theregister.com/2026/03/27/sycophantic_ai_risks/
181•Brajeshwar•3h ago•131 comments

Circuit-level PDP-11/34 emulator

https://github.com/dbrll/ll-34
13•elvis70•2h ago•0 comments

StationeryObject

https://stationeryobject.com/archive/
24•NaOH•3d ago•1 comments

Improved Git Diffs with Delta, Fzf and a Little Shell Scripting

https://nickjanetakis.com/blog/awesome-git-diffs-with-delta-fzf-and-a-little-shell-scripting
68•nickjj•4d ago•28 comments

Go hard on agents, not on your filesystem

https://jai.scs.stanford.edu/
525•mazieres•17h ago•292 comments

Undroidwish – a single-file, batteries-included Tcl/Tk binary for many platforms

https://androwish.org/home/wiki?name=undroidwish
5•smartmic•1h ago•0 comments

AMD's Ryzen 9 9950X3D2 Dual Edition crams 208MB of cache into a single chip

https://arstechnica.com/gadgets/2026/03/amds-ryzen-9-9950x3d2-dual-edition-crams-208mb-of-cache-i...
262•zdw•16h ago•145 comments

Detecting file changes on macOS with kqueue

https://www.vegardstikbakke.com/kqueue/
3•benhoyt•3d ago•0 comments

Paper Tape Is All You Need – Training a Transformer on a 1976 Minicomputer

https://github.com/dbrll/ATTN-11
93•rahen•3d ago•17 comments

The bee that everyone wants to save

https://naturalist.bearblog.dev/the-bee-that-everyone-wants-to-save/
217•nivethan•3d ago•75 comments

RSA and Python

https://xnacly.me/posts/2023/rsa/
11•ibobev•3d ago•5 comments

A single-file C allocator with explicit heaps and tuning knobs

https://github.com/xtellect/spaces
50•enduku•3d ago•35 comments

Make macOS consistently bad unironically

https://lr0.org/blog/p/macos/
488•speckx•23h ago•334 comments

Show HN: A prompt that builds the most capable AI agent system

https://github.com/fainir/most-capable-agent-system-prompt
5•fainir•1h ago•0 comments

Gerard of Cremona

https://en.wikipedia.org/wiki/Gerard_of_Cremona
23•teleforce•2d ago•11 comments

Go Naming Conventions: A Practical Guide

https://www.alexedwards.net/blog/go-naming-conventions
69•yurivish•3d ago•43 comments

Arm releases first in-house chip, with Meta as debut customer

https://www.cnbc.com/2026/03/24/arm-launches-its-own-cpu-with-meta-as-first-customer.html
80•goplayoutside•3d ago•24 comments

Anatomy of the .claude/ folder

https://blog.dailydoseofds.com/p/anatomy-of-the-claude-folder
562•freedomben•1d ago•239 comments

LG's new 1Hz display is the secret behind a new laptop's battery life

https://www.pcworld.com/article/3096432/lgs-new-1hz-display-is-the-secret-behind-a-new-laptops-ba...
302•robotnikman•4d ago•151 comments
Open in hackernews

Anatomy of a SQL Engine

https://www.dolthub.com/blog/2025-04-25-sql-engine-anatomy/
168•ingve•11mo ago

Comments

jimbokun•11mo ago
Very nice write up enumerating all the stages of SQL query execution. Interesting even if you don’t care about the DoIt database specifically.
Austizzle•11mo ago
Man, this title tripped me up for a minute because I pronounce it with the letters like Ess-Queue-Ell

So the "A" in "A ess-queue-ell" engine felt like it should have been an "An" until I realized it was meant to be pronounced like "sequel"

perching_aix•11mo ago
Not necessarily, I see native speakers completely ignore this a lot.

Have you ever considered pronouncing it as squirrel by the way?

kreetx•11mo ago
Many (most?) non-native English speakers do pronounce it as ess-queue-ell, especially in their own languages, so yes, the use of "a" instead of "an" does look off from that perspective.
SloopJon•11mo ago
When I read SQL for Dummies almost thirty years ago, it made a point of distinguishing "sequel" as a historical predecessor to standard "SQL." As I recall, the author even asserted that SQL is not an acronym/initialism for structured query language. I felt funny saying sequel for the next decade or so, because I wasn't an old timer experienced with this pre-SQL technology.

Now I usually say sequel because everyone else does. That and it rolls off the tongue better than S-Q-L.

jtolmar•11mo ago
I prefer "ess queue ell" these days, but the first DBA I ever worked with pronounced it "squirrel".
gopalv•11mo ago
This is a great write up about a pull-style volcano SQL engine.

The IR I've used is the Calcite implementation, this looks very concept adjacent enough that it makes sense on the first read.

> tmp2/test-branch> explain plan select count() from xy join uv on x = u;

One of the helpful things we did was to build a graphviz dot export for the explains plans, which saved us days and years of work when trying to explain an optimization problem between the physical and logical layers.

My version would end up displayed as SVG like this

https://web.archive.org/web/20190724161156/http://people.apa...

But the calcite logical plans also have that dot export modes.

https://issues.apache.org/jira/browse/CALCITE-4197

th0ma5•11mo ago
This is really great!!
gavinray•11mo ago
Calcite also has a relatively-unknown web tool for plan visualization that lets you step through execution.

It's a method from "RuleMatchVisualizer":

https://github.com/apache/calcite/blob/36f6dddd894b8b79edeb5...

Here's a screenshot of what the webpage looks like, for anyone curious:

https://github.com/GavinRay97/GraphQLCalcite/blob/92b18a850d...

ignoreusernames•11mo ago
I recommend anyone who works with databases to write a simple engine. It's a lot simpler than you may think and it's a great exercise. If using python, sqlglot (https://github.com/tobymao/sqlglot) let's you skip all the parsing and it even does some simple optimizations. From the parsed query tree it's pretty straightforward to build a logical plan and execute that. You can even use python's builtin ast module to convert sql expressions into python ones (so no need for a custom interpreter!)
Abde-Notte•11mo ago
Second this - building even a simple engine gives real insight into query planning and execution. Once parsing is handled, the core ideas are a lot more approachable than they seem.
albert_e•11mo ago
Sorry for slight digression.

In a larger system we are building we need a text-to-sql capability for some structured data retrieval.

Is there a way one could utilize this library (sqlglot) to build a multi-dialect sql generator -- that is not currently solved by directly relying on a LLM that is better at code generation in general?

LtdJorge•11mo ago
This is a SQL to X library, though. I don’t think it’s what you need.
gavinray•11mo ago
You can use an LLM to generate query-builder expressions from popular libraries in whatever language.

For example, on the JVM there is jOOQ, which allows you to write something like:

  select(field("foo"), avg("bar")).from(table("todos"))
And then it will render dialect-specific SQL. It has very advanced emulation functionality for things like JSON aggregations and working around quirks of dialects.

Alternatively, you can ask an LLM to generate a specific dialect of SQL, and then use jOOQ to parse it to an AST, and then render it as a different dialect, like:

    val parser= DSL.using(SQLDialect.POSTGRES).parser()
    val parsedQuery = parser.parseQuery(postgresQuery)
    val renderedMySQL = DSL.using(SQLDialect.MYSQL).renderInlined(parsedQuery)
    println(renderedMySQL)
Unsure if functionality like this exists in other Query Builder libraries for other languages.
genai-analyst•10mo ago
another digression here... sorry... i see you're trying to diy text-to-sql—at some point you're gonna hit a bunch of hiccups. like, the model writes a query that “almost” works but joins the wrong tables, or it assumes column names that don’t exist, or it returns the wrong agg because it misread the intent. and retries won’t always save you—it’ll just confidently hallucinate again.

we’ve been through all of that at wobby.ai we ended up building a system where the data team defines guardrails and reusable query templates, so the agent doesn’t just make stuff up. it can still handle user prompts, but within a safe structure. if you want to save yourself from debugging this stuff endlessly, might be worth checking out wobby.ai.

KyleBrandt•11mo ago
Using dolthub's go-mysql-server for Grafana's upcoming SQL expressions feature (private preview in Grafana 12, but in the OSS version with a feature toggle).

GMS lets you provide your own table and database implementations, so we use GMS to perform SQL queries against Grafana's dataframes - so users can join or manipulate different data source queires, but we don't have to insert the data into SQL to do this thanks to GMS.