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The Interim Computer Museum

https://icm.museum/
53•mulmen•2h ago•6 comments

Make your first edit to OpenStreetMap

https://high5apps.github.io/josm-plugin-website-wizard/
386•juliantigler•12h ago•89 comments

Real-SWE: Benchmarking AI models on private, real-world, enterprise codebases

https://withspecific.com/benchmarks/real-swe
175•theanonymousone•8h ago•97 comments

Nvidia is the central bank of AI

https://www.economist.com/interactive/briefing/2026/09/03/nvidia-is-the-central-bank-of-ai
430•tolugenius•14h ago•298 comments

The Succession Crisis That Tore England Apart

https://www.historytoday.com/archive/feature/succession-crisis-tore-england-apart
12•pepys•1h ago•3 comments

Apple iPod Engraver (2019)

https://dunstanorchard.com/apple-ipod-engraver/
174•NaOH•4d ago•39 comments

From Git to Fossil

https://lucio.albenga.es/web-en/posts/2025/from-git-to-fossil.html
24•smartmic•2d ago•11 comments

Everyone should slow down AI development except for me

https://xeiaso.net/notes/2026/everyone-slowdown-but-me/
299•xena•4h ago•166 comments

Don't be the out of touch Kung Fu master – John Carmack

https://twitter.com/ID_AA_Carmack/status/2098443262214230095
81•dsubburam•7h ago•42 comments

Don't call yourself an artisanal programmer

https://purplesyringa.moe/blog/dont-call-yourself-an-artisanal-programmer/
15•emschwartz•2h ago•16 comments

Stabilizing Rust's Never Type

https://lwn.net/SubscriberLink/1091015/d9e48318ed242b41/
160•cjd8•3d ago•43 comments

I Made a Non-Wi-Fi Mitsubishi AC Smart with an ESP32

https://medium.com/@ivangomezarnedo/how-i-added-a-non-wi-fi-mitsubishi-ac-to-home-assistant-22770...
15•ichacas•2d ago•1 comments

Getting 50 GB/S Back from the Apple Neural Engine

https://eiln.github.io/posts/ane-dma.html
109•eiln•3d ago•22 comments

LG denies TV spying claims, says tracking and snooping concerns 'not true'

https://www.tomshardware.com/tech-industry/big-tech/lg-strongly-denies-tv-security-claims-says-tr...
474•datakan•2d ago•379 comments

Vintage Scientific Papers with LaTeX

https://github.com/Foadsf/vintage-latex
48•petalmind•3d ago•3 comments

Durable execution without history replay

https://trigora.dev/blog/durable-execution-without-history-replay/
5•hypervs•3d ago•1 comments

AgentsDock: An IDE designed for agentic AI research

https://agentsdock.net/
26•ZihuiGeorgia•5h ago•10 comments

We must pace the frontier

https://darioamodei.com/post/we-must-pace-the-frontier
603•apsec112•15h ago•834 comments

P(doom)

https://lucumr.pocoo.org/2026/9/12/pdoom/
36•lumpa•7h ago•11 comments

I made a build visualizer to understand Bun's compile times

https://lalitm.com/post/buildprof/
109•lalitmaganti•14h ago•21 comments

Will There Be a 7G?

https://arxiv.org/abs/2609.01877
87•Betelbuddy•12h ago•151 comments

Microcode in Intel's 8087 floating-point chip: the scale instruction

https://www.righto.com/2026/09/8087-microcode-reverse-engineering-fscale.html
97•pwg•13h ago•29 comments

Android NAT-T keepalive offload bypasses VPN lockdown

https://supuk.ch/papers/android-natt-keepalive-vpn-bypass
185•mhitza•1d ago•45 comments

Linux Zoom client proactively reading everything written to X11 clipboard

https://hachyderm.io/@simontatham/117201594980991062
231•encyclopedism•10h ago•72 comments

I fixed a tractor using John Deere's self-repair service. Farmers aren't sold

https://www.wired.com/story/i-fixed-a-tractor-john-deere-self-repair-service/
116•sbulaev•1d ago•119 comments

How Trail of Bits helps verify the integrity of Signal chats

https://blog.trailofbits.com/2026/08/11/how-trail-of-bits-helps-verify-the-integrity-of-your-sign...
66•dgroshev•17h ago•38 comments

A Mathematical Framework for Transformer Circuits (2021)

https://transformer-circuits.pub/2021/framework/index.html
93•Bluestein•15h ago•17 comments

LG Says We're Fake News [video]

https://www.youtube.com/watch?v=ToP9xfLDSME
221•HelloUsername•9h ago•100 comments

A Design Space Exploration of Async/Await

https://cel.cs.brown.edu/blog/design-space-async-await/
431•wcrichton•3d ago•124 comments

Show HN: See Sounds on Your Webcam

https://soundmap.darebuild.com/
15•jimhi•2d ago•4 comments
Open in hackernews

Anatomy of a SQL Engine

https://www.dolthub.com/blog/2025-04-25-sql-engine-anatomy/
168•ingve•1y ago

Comments

jimbokun•1y 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•1y 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•1y ago
Not necessarily, I see native speakers completely ignore this a lot.

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

kreetx•1y 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•1y 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•1y ago
I prefer "ess queue ell" these days, but the first DBA I ever worked with pronounced it "squirrel".
gopalv•1y 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•1y ago
This is really great!!
gavinray•1y 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•1y 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•1y 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•1y 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•1y ago
This is a SQL to X library, though. I don’t think it’s what you need.
gavinray•1y 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.
KyleBrandt•1y 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.

genai-analyst•1y 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.