The Ledger

Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.

clear all ✕

why aren't all 12 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable

Prediction Held up
Katz: ClickHouse will build a multi-tenant cloud-managed service
“And at the same time in parallel, we are going to build A multi-tenant managed service in the cloud, which will inevitably be deployed on a variety of different cloud platforms, whether it's AWS, GCP, Azure, whether we go to China, like I've done in the past a…”
Aaron Katz Nov 16, 2021 ▶ 16:00 Fireside Chat: Aaron Katz (Co-Founder & CEO, ClickHouse) with Matt Turck (Partner, FirstMark)
Assertion Supported
Katz: eBay migrated off Druid and onto ClickHouse
“EBay is another example of a company that migrated off of Druid and onto ClickHouse.”
Aaron Katz Jun 13, 2024 ▶ 25:16 How ClickHouse powers Netflix, Uber and Spotify’s Analytics | Aaron Katz, CEO of ClickHouse
Assertion Supported
Katz: ClickHouse has been used as an AI feature store for years
“And so the reality is ClickHouse has been used for in AI applications or to power AI applications as a feature store for years.”
Aaron Katz Jun 13, 2024 ▶ 21:12 How ClickHouse powers Netflix, Uber and Spotify’s Analytics | Aaron Katz, CEO of ClickHouse
Assertion Supported
Katz: Lyft migrated off Druid and onto ClickHouse
“Druid is an example where Lyft recently, the ride-sharing company, migrated off of Druid and onto ClickHouse.”
Aaron Katz Jun 13, 2024 ▶ 25:08 How ClickHouse powers Netflix, Uber and Spotify’s Analytics | Aaron Katz, CEO of ClickHouse
Assertion Supported
Katz: eBay ingests one billion events per minute into ClickHouse
“EBay, for example, who is ingesting literally a billion events per minute into Clickhouse and then running very complex queries against that data set.”
Aaron Katz Nov 16, 2021 ▶ 4:50 Fireside Chat: Aaron Katz (Co-Founder & CEO, ClickHouse) with Matt Turck (Partner, FirstMark)
Assertion Supported
ClickHouse counts Spotify, Netflix, Disney, and Uber as customers
“We are taking this very powerful analytical database that's used by companies like Spotify and Netflix and Disney and Uber and eBay and Cloudflare, and we're building a managed service in the cloud that we're calling ClickHouse Cloud.”
Aaron Katz Jun 13, 2024 ▶ 2:05 How ClickHouse powers Netflix, Uber and Spotify’s Analytics | Aaron Katz, CEO of ClickHouse
Assertion Supported
Katz: Instacart uses ClickHouse for cost control, fraud, and A/B experimentation
“Instacart's a very prominent one and one of the more recent ones that have talked about their use of ClickHouse and in an effort to obviously control their spiraling data warehouse costs, they've looked to ClickHouse to help solve that problem, but also in ter…”
Aaron Katz Jun 13, 2024 ▶ 8:07 How ClickHouse powers Netflix, Uber and Spotify’s Analytics | Aaron Katz, CEO of ClickHouse
Assertion Supported
Tinybird's real-time analytics architecture is built on top of ClickHouse
“We're built over ClickHouse.”
Jorge Gomez Sancha Mar 9, 2023 ▶ 6:52 Build Fast APIs Faster Over Data at Scale | Tinybird Founder & CEO Jorge Gomez Sancha
Assertion Supported
Katz: Uber adopted ClickHouse for logging infrastructure to lower costs
“They were evaluating a variety of technologies for their logging infrastructure for their logging platform, which is being used by hundreds of developers every day for a variety of analytical workloads. And the current technology presented a bit of a cost. Con…”
Aaron Katz Nov 16, 2021 ▶ 6:37 Fireside Chat: Aaron Katz (Co-Founder & CEO, ClickHouse) with Matt Turck (Partner, FirstMark)
Assertion Supported
Katz: ClickHouse had second most active GitHub contributors in 2020
“I think it was the, you know, the second second highest open source database management system on GitHub last year in terms of active contributors and perhaps the fastest growing open source database management system on GitHub alone.”
Aaron Katz Nov 16, 2021 ▶ 13:58 Fireside Chat: Aaron Katz (Co-Founder & CEO, ClickHouse) with Matt Turck (Partner, FirstMark)
Assertion Supported
Katz bought clickhouse.com before announcing spin-out to avoid price gouging
“Yeah, clickhouse.com, which to Mark's earlier point is a domain that I purchased earlier this year when engineering this spin out, I thought I better buy this domain now because it's going to get a lot more expensive when we incorporate the company and announc…”
Aaron Katz Nov 16, 2021 ▶ 32:35 Fireside Chat: Aaron Katz (Co-Founder & CEO, ClickHouse) with Matt Turck (Partner, FirstMark)
Assertion Supported
Turck: ClickHouse spun out of Yandex as an independent commercial company
“ClickHouse being a very popular open source project that was started at Yandex and just got spun out as a commercial for-profit for-profit company.”
Matt Turck Oct 27, 2021 ▶ 17:27 Top 10 Trends in AI, Machine Learning and Data for 2022
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