Hacker News: jmgimeno

New comment by jmgimeno in "Book review: There Is No Antimemetics Division"

jmgimeno — Mon, 06 Apr 2026 16:11:03 +0000

Couldn't finish it. I suppose it was not for me.

New comment by jmgimeno in "Optimizing Top K in Postgres"

jmgimeno — Tue, 10 Mar 2026 07:16:49 +0000

Maybe I'm wrong, but for this query:

SELECT * FROM benchmark_logs WHERE severity < 3 ORDER BY timestamp DESC LIMIT 10;

this index

CREATE INDEX ON benchmark_logs (severity, timestamp);

cannot be used as proposed: "Postgres can jump directly to the portion of the tree matching severity < 3 and then walk the timestamps in descending order to get the top K rows."

Postgres with this index can walk to a part of the tree with severity < 3, but timestamps are sorted only for the same severity.

New comment by jmgimeno in "Sbt and the Miners of the Wild West"

jmgimeno — Thu, 29 Jan 2026 06:50:09 +0000

A post discusses how Gittensor, a Bittensor subnetwork, uses cryptocurrency to incentivize open-source software contributions, attracting both senior and junior developers. The author observes that while this model promises a decentralized workforce, the influx of contributions, particularly from junior developers requiring significant review, may increase the maintenance burden on projects like sbt and raises questions about the sustainability of quality without overwhelming maintainers.

Sbt and the Miners of the Wild West

jmgimeno — Thu, 29 Jan 2026 06:50:09 +0000

Article URL: https://eed3si9n.com/sbt-and-the-miners-of-the-wild-west/

Comments URL: https://news.ycombinator.com/item?id=46806683

Points: 1

# Comments: 1

New comment by jmgimeno in "Most Influential Papers in Computer Science History"

jmgimeno — Thu, 23 Jan 2025 08:54:06 +0000

"The UNIX TimeSharing System", by Dennis M. Ritchie and Ken Thompson.

New comment by jmgimeno in "ZIO in 2025"

jmgimeno — Thu, 14 Nov 2024 07:23:39 +0000

ZIO plans to streamline its ecosystem in 2025 by integrating core projects and focusing on enterprise stability.

ZIO in 2025

jmgimeno — Thu, 14 Nov 2024 07:23:39 +0000

Article URL: https://www.ziverge.com/post/zio-in-2025

Comments URL: https://news.ycombinator.com/item?id=42133833

Points: 1

# Comments: 1

New comment by jmgimeno in "Ten years of improvements in PostgreSQL's optimizer"

jmgimeno — Wed, 17 Apr 2024 12:00:34 +0000

PostgreSQL Query Optimization: The Ultimate Guide to Building Efficient Queries, by Henrietta Dombrovskaya and Boris Novikov Anna Bailliekova, published by Apress in 2021.

New comment by jmgimeno in "Scala Resurrection"

jmgimeno — Tue, 24 Jan 2023 11:12:33 +0000

In this post, John de Goes discusses the issues standing in the way of Scala’s growth in industry, and share his thoughts about how we can all help.

Scala Resurrection

jmgimeno — Tue, 24 Jan 2023 11:12:33 +0000

Article URL: https://degoes.net/articles/scala-resurrection

Comments URL: https://news.ycombinator.com/item?id=34502181

Points: 12

# Comments: 2

New comment by jmgimeno in "Ask HN: Is programming a “young person's game”?"

jmgimeno — Wed, 09 Nov 2022 09:27:23 +0000

> don't think progressing in mathematics is only for young people, fields medal winners are typically in their late 30s, early 40s.

Fields medal is for mathematicians under 40 years of age.

New comment by jmgimeno in "Functional programming jargon in plain English"

jmgimeno — Mon, 04 Jul 2022 10:11:56 +0000

Yes, but you're relying on the undefined concept of context. How do you define context?

ZIO 2 has been released

jmgimeno — Fri, 24 Jun 2022 16:29:10 +0000

Article URL: https://github.com/zio/zio/releases

Comments URL: https://news.ycombinator.com/item?id=31865022

Points: 1

# Comments: 0

New comment by jmgimeno in "CUPID – the back story"

jmgimeno — Mon, 22 Mar 2021 05:32:23 +0000

SOLID (or any set of design principles) are important in the sense that you should think twice when you don't obey them. So it is not necessary that they are strictly well defined: they are stopping points for thinking not for marking on a YES/NO list.

New comment by jmgimeno in "Computer Networks: A Systems Approach"

jmgimeno — Fri, 12 Feb 2021 08:28:46 +0000

https://github.com/SystemsApproach/book/releases/tag/v6.1

Concurnas: The New Language on the JVM for Concurrent and GPU Computing

jmgimeno — Wed, 27 May 2020 08:05:26 +0000

Article URL: https://www.infoq.com/news/2020/05/concurnas-jvm-gpu/

Comments URL: https://news.ycombinator.com/item?id=23320607

Points: 1

# Comments: 0

John De Goes indefinitely barred from participating in Typelevel projects

jmgimeno — Fri, 06 Sep 2019 12:12:02 +0000

Article URL: https://gist.github.com/djspiewak/39fcf30fc4480abb5096010886558792

Comments URL: https://news.ycombinator.com/item?id=20894920

Points: 24

# Comments: 18

New comment by jmgimeno in "Light Table - a new IDE concept"

jmgimeno — Sat, 14 Apr 2012 08:29:35 +0000

I agree that sometimes files are not the best representation for code but languages gives them semantics. For instance, namespacing/packaging is based on files (which make dependencies based on files too).