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Jensen Huang resigns

https://apnews.com/article/nvidia-megaspeed-china-singapore-huang-5403f152a601cf82ce939f1d24fffa0f
2108•lldb•6h ago•2128 comments

Rust 1.100.0

https://github.com/rust-lang/rust/releases/tag/1.100.0
259•thesuperbigfrog•1h ago•55 comments

Dwarf planet candidate appears which takes roughly 280 years to orbit our sun

https://www.smithsonianmag.com/smart-news/astronomers-found-a-mysterious-object-orbiting-far-beyo...
37•cybermango•51m ago•7 comments

Gemini 4 Hydrogen and Orchestrator

https://antigravity.google/blog/gemini-4-hydrogen-in-google-antigravity/
43•jonbaer•1h ago•6 comments

Gemini 4 Hydrogen

https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-hydr...
295•dvaplima•1h ago•188 comments

Ask HN: Microsoft/Azure Outage?

240•nazgulsenpai•1h ago•113 comments

Show HN: My $300 embroidery machine needed a subscription, so I built my own app

https://github.com/simpsoka/zigzag
90•simpsoka•2h ago•28 comments

Outlook is down, and so is Microsoft's status page

https://gvwire.com/2026/11/12/microsoft-outlook-down-for-thousands-of-users-downdetector-shows/
183•dkpk•1h ago•53 comments

Abandoned Quake 4 expansion finished by modders and now playable

https://www.moddb.com/mods/openq4/downloads/openq4-0141-windows-x64
193•klaussilveira•5h ago•65 comments

I'm making LLMs work on small and old devices

https://github.com/hyperionaidev/smolmaxxing/
171•mrashad74•4h ago•65 comments

22-Year-Old PostgreSQL Bug Turned into Remote Code Execution

https://mehmetince.net/part-3-6-how-i-ended-up-turning-a-22-year-old-postgresql-type-confusion-pr...
25•ozirus•1h ago•1 comments

Talking Zen 6 with Mike Clark at AMD In-Depth

https://chipsandcheese.com/p/talking-zen-6-with-mike-clark-at
141•dverlaeckt80•5h ago•1 comments

Show HN: Kapso – Iterative learning from enterprise data

14•alireza_msh•2h ago•3 comments

Relax: JIT compiler for Rust to reduce build times

https://makepad.github.io/relax/
38•adamnemecek•22h ago•14 comments

Show HN: AgentRun – open-source, Self-improving Managed Agents

https://github.com/Parcha-ai/agentrun/blob/main/README.md
33•miguelrios•1h ago•2 comments

Words of warning about radiocarbon dating medieval human bones

https://www.nature.com/articles/s40494-026-02958-x
14•gumby•21h ago•3 comments

ExcalidrawZ: Local Native Excalidraw on macOS/iOS

https://github.com/chocoford/ExcalidrawZ
75•Qision•4h ago•18 comments

Why Writing Correct Software Is Hard

https://pron.github.io/posts/correctness-and-complexity
314•AriFordsham•9h ago•139 comments

Nintendo Takes Down Emulators and Firmware in Massive GitHub DMCA Sweep

https://www.ign.com/articles/nintendo-takes-down-switch-emulators-and-mod-chip-firmware-in-massiv...
173•CharlesW•3h ago•107 comments

Libreagi – Save OSS Models

https://libreagi.com/
89•satuke•5h ago•21 comments

AWS Lambda Web Functions keep billing memory ~7 minutes after the last request

https://www.easel.sh/blog/lambda-web-functions-idle-memory
50•seanw265•2h ago•18 comments

Anthropic IPO

https://ipo.anthropic.com/us/
699•josephljohnston•8h ago•702 comments

Socratic Tutor

https://github.com/janestreet/agent_skills/blob/master/socratic-tutor/SKILL.md
603•tosh•2d ago•136 comments

Singapore Says U.S. Not Helpful on Investigation into Suspected Spy's Company

https://www.nytimes.com/2026/11/12/business/nvidia-megaspeed-alice-huang.html
60•tedd4u•1h ago•13 comments

Our software engineering interviews are changing a little

https://blog.janestreet.com/software-engineering-interviews-are-changing-a-little/
114•maitland•5h ago•99 comments

A live tree of systemd jobs on the boot console

https://codeberg.org/wvhulle/bootvine
315•orhunp_•3d ago•119 comments

Fitting Four 32 GB Resizable Bars Behind a PCIe Switch on Linux

https://doug.sh/posts/gpu-bars-behind-a-pcie-switch/
59•dougcalobrisi•4h ago•23 comments

Paths in Pieces

https://stoppels.ch/2026/11/12/paths-in-pieces.html
17•acossta•2h ago•0 comments

Electric ship batteries promise compact, cooler power

https://spectrum.ieee.org/electric-ship-batteries
48•rbanffy•5h ago•52 comments

Researchers discover rare star system that emits radio signals every 8 minutes

https://www.curtin.edu.au/news/media-release/researchers-discover-rare-star-system-that-emits-rad...
102•giuliomagnifico•9h ago•54 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.