Hacker News: zX41ZdbW

New comment by zX41ZdbW in "Comprehensive C++ Hashmap Benchmarks (2022)"

zX41ZdbW — Mon, 30 Mar 2026 18:20:15 +0000

The performance of hash tables and hash functions significantly depends on the data distribution, and should be compared on real datasets.

I've covered it in my presentation: https://presentations.clickhouse.com/2017-hash_tables/

iOS Exploit Chain Adopted by Multiple Threat Actors

zX41ZdbW — Fri, 27 Mar 2026 21:33:26 +0000

Article URL: https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain

Comments URL: https://news.ycombinator.com/item?id=47548560

Points: 2

# Comments: 0

Databricks Announces Lakewatch: New Open, Agentic SIEM

zX41ZdbW — Tue, 24 Mar 2026 14:41:58 +0000

Article URL: https://www.databricks.com/blog/databricks-announces-lakewatch-new-open-agentic-siem

Comments URL: https://news.ycombinator.com/item?id=47503328

Points: 3

# Comments: 1

PostGIS-compatible spatial functions for ClickHouse

zX41ZdbW — Mon, 23 Mar 2026 17:37:21 +0000

Article URL: https://github.com/bacek/chgeos/

Comments URL: https://news.ycombinator.com/item?id=47492625

Points: 3

# Comments: 0

New comment by zX41ZdbW in "Two pilots dead after plane and ground vehicle collide at LaGuardia"

zX41ZdbW — Mon, 23 Mar 2026 10:40:44 +0000

Ground vehicles with transponders: https://adsb.exposed/?dataset=Planes&zoom=7&lat=42.1262&lng=...

New comment by zX41ZdbW in "What CI looks like at a 100-person team (PostHog)"

zX41ZdbW — Tue, 17 Mar 2026 23:54:37 +0000

https://github.com/ClickHouse/ClickHouse/pull/99828

New comment by zX41ZdbW in "What CI looks like at a 100-person team (PostHog)"

zX41ZdbW — Tue, 17 Mar 2026 11:09:31 +0000

Two problematic statements in this article:

1. Test pass rate is 99.98% is not good - the only acceptable rate is 100%.

2. Tests should not be quarantined or disabled. Every flaky test deserves attention.

Claude Code rolls out a voice mode capability

zX41ZdbW — Wed, 04 Mar 2026 02:22:52 +0000

Article URL: https://techcrunch.com/2026/03/03/claude-code-rolls-out-a-voice-mode-capability/

Comments URL: https://news.ycombinator.com/item?id=47242190

Points: 11

# Comments: 1

Training neural networks on Apple Neural Engine via reverse'd private APIs

zX41ZdbW — Wed, 04 Mar 2026 02:12:46 +0000

Article URL: https://github.com/maderix/ANE

Comments URL: https://news.ycombinator.com/item?id=47242128

Points: 3

# Comments: 0

New comment by zX41ZdbW in "Programming in K"

zX41ZdbW — Sun, 01 Mar 2026 23:03:17 +0000

Similarly, this is how it was introduced in ClickHouse in 2019: https://github.com/ClickHouse/ClickHouse/pull/4774

Harness engineering: leveraging Codex in an agent-first world

zX41ZdbW — Sat, 21 Feb 2026 13:12:11 +0000

Article URL: https://openai.com/index/harness-engineering/

Comments URL: https://news.ycombinator.com/item?id=47100528

Points: 3

# Comments: 0

Polyglot – a Rust/WASM SQL transpilation library

zX41ZdbW — Tue, 17 Feb 2026 20:42:31 +0000

Article URL: https://tobilg.com/posts/introducing-polyglot-a-rust-wasm-sql-transpilation-library/

Comments URL: https://news.ycombinator.com/item?id=47053034

Points: 2

# Comments: 0

New comment by zX41ZdbW in "Information Is Beautiful"

zX41ZdbW — Mon, 09 Feb 2026 20:33:45 +0000

I once tried to post an interesting visualization to r/dataisbeautiful and received hundreds of upvotes, but then it was wiped for an unknown reason. Then I contacted the mods, both on Reddit and over email, to no avail.

It was a very frustrating experience, don't recommend anyone to try.

SereneDB – The First Real-Time Search Analytics Database

zX41ZdbW — Wed, 04 Feb 2026 16:38:15 +0000

Article URL: https://github.com/serenedb/serenedb

Comments URL: https://news.ycombinator.com/item?id=46888004

Points: 3

# Comments: 0

OpenText to Divest Vertica for US$150M

zX41ZdbW — Mon, 02 Feb 2026 18:33:20 +0000

Article URL: https://www.morningstar.com/news/pr-newswire/20260202la75996/opentext-to-divest-vertica-for-us150-million

Comments URL: https://news.ycombinator.com/item?id=46859474

Points: 1

# Comments: 0

Global weather data from flying airplanes (2025)

zX41ZdbW — Thu, 29 Jan 2026 05:44:01 +0000

Article URL: https://clickhouse.com/blog/planes-weather

Comments URL: https://news.ycombinator.com/item?id=46806264

Points: 2

# Comments: 0

New comment by zX41ZdbW in "Command-line Tools can be 235x Faster than your Hadoop Cluster (2014)"

zX41ZdbW — Sun, 18 Jan 2026 14:04:59 +0000

Though ClickHouse is not limited to a single machine or local data processing. It's a full-featured distributed database.

New comment by zX41ZdbW in "Command-line Tools can be 235x Faster than your Hadoop Cluster (2014)"

zX41ZdbW — Sun, 18 Jan 2026 14:02:46 +0000

When a single server is not enough, you deploy ClickHouse on a cluster, up to thousands of machines, e.g., https://clickhouse.com/blog/how-clickhouse-powers-ahrefs-the...

New comment by zX41ZdbW in "Exasol Personal – Democratizing Big Data Analytics"

zX41ZdbW — Fri, 16 Jan 2026 16:59:27 +0000

This is bad news: it is not usable:

> 5.3 Licensee may not disclose any benchmarking or results of evaluating the Software without Exasol´s prior written consent

New comment by zX41ZdbW in "Exasol Personal – Democratizing Big Data Analytics"

zX41ZdbW — Fri, 16 Jan 2026 16:51:45 +0000

This is good news.

I was trying to add Exasol to ClickBench (https://github.com/ClickHouse/ClickBench/) since 2016, but it was not possible due to the limitations and the fact that it required using a custom virtual machine image.

Now we should try it again...