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Show HN: Ghost Pepper – Local hold-to-talk speech-to-text for macOS

https://github.com/matthartman/ghost-pepper
333•MattHart88•10h ago•140 comments

Solod – A Subset of Go That Translates to C

https://github.com/solod-dev/solod
85•TheWiggles•5h ago•21 comments

People Love to Work Hard

https://www.anildash.com/2026/04/06/people-love-to-work-hard/
16•zdw•1h ago•7 comments

Launch HN: Freestyle – Sandboxes for Coding Agents

https://www.freestyle.sh/
246•benswerd•13h ago•137 comments

Apollo Guidance Computer Restoration Videos and Press Coverage

https://www.curiousmarc.com/space/apollo-guidance-computer
17•mariuz•2d ago•2 comments

A cryptography engineer's perspective on quantum computing timelines

https://words.filippo.io/crqc-timeline/
416•thadt•14h ago•171 comments

Issue: Claude Code is unusable for complex engineering tasks with Feb updates

https://github.com/anthropics/claude-code/issues/42796
928•StanAngeloff•16h ago•530 comments

Sam Altman may control our future – can he be trusted?

https://www.newyorker.com/magazine/2026/04/13/sam-altman-may-control-our-future-can-he-be-trusted
1179•adrianhon•19h ago•450 comments

German police name alleged leaders of GandCrab and REvil ransomware groups

https://krebsonsecurity.com/2026/04/germany-doxes-unkn-head-of-ru-ransomware-gangs-revil-gandcrab/
284•Bender•16h ago•139 comments

Show HN: GovAuctions lets you browse government auctions at once

https://www.govauctions.app/
259•player_piano•13h ago•74 comments

VOID: Video Object and Interaction Deletion

https://github.com/Netflix/void-model
130•bobsoap•3d ago•42 comments

Peptides: where to begin?

https://www.science.org/content/blog-post/ah-peptides-where-begin
96•A_D_E_P_T•8h ago•128 comments

Anthropic expands partnership with Google and Broadcom for next-gen compute

https://www.anthropic.com/news/google-broadcom-partnership-compute
209•l1n•8h ago•93 comments

Show HN: Hippo, biologically inspired memory for AI agents

https://github.com/kitfunso/hippo-memory
74•kitfunso•8h ago•17 comments

What being ripped off taught me

https://belief.horse/notes/what-being-ripped-off-taught-me/
371•doctorhandshake•17h ago•192 comments

Book review: There Is No Antimemetics Division

https://www.stephendiehl.com/posts/no_antimimetics/
229•ibobev•16h ago•167 comments

Show HN: Anos – a hand-written ~100KiB microkernel for x86-64 and RISC-V

https://github.com/roscopeco/anos
49•noone_youknow•2d ago•14 comments

AI singer now occupies eleven spots on iTunes singles chart

https://www.showbiz411.com/2026/04/05/itunes-takeover-by-fake-ai-singer-eddie-dalton-now-occupies...
137•flinner•14h ago•206 comments

The Last Quiet Thing

https://www.terrygodier.com/the-last-quiet-thing
192•coinfused•2d ago•109 comments

Linux extreme performance H1 load generator

https://www.gcannon.org/
11•MDA2AV•2d ago•4 comments

Sky – an Elm-inspired language that compiles to Go

https://github.com/anzellai/sky
151•whalesalad•14h ago•53 comments

Show HN: Tusk for macOS and Gnome

https://shapemachine.xyz/tusk/
69•factorialboy•2d ago•18 comments

HackerRank (YC S11) Is Hiring

1•rvivek•9h ago

Graph-go – zero config, full visibility

https://github.com/guilherme-grimm/graph-go
16•devGrimm•3d ago•1 comments

After 20 years I turned off Google Adsense for my websites (2025)

https://blog.ericgoldman.org/archives/2025/06/after-20-years-i-turned-off-google-adsense-for-my-w...
165•datadrivenangel•6h ago•111 comments

Battle for Wesnoth: open-source, turn-based strategy game

https://www.wesnoth.org
444•akyuu•12h ago•125 comments

Agent Reading Test

https://agentreadingtest.com
60•kaycebasques•11h ago•18 comments

The cult of vibe coding is dogfooding run amok

https://bramcohen.com/p/the-cult-of-vibe-coding-is-insane
515•drob518•11h ago•447 comments

Show HN: TTF-DOOM – A raycaster running inside TrueType font hinting

https://github.com/4RH1T3CT0R7/ttf-doom
41•4RH1T3CT0R•10h ago•9 comments

The team behind a pro-Iran, Lego-themed viral-video campaign

https://www.newyorker.com/culture/infinite-scroll/the-team-behind-a-pro-iran-lego-themed-viral-vi...
123•tantalor•16h ago•183 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•11mo 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.