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New
The latest blog posts to take off on Hacker News. 2,337 posts.
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PostgreSQL B-Tree index deduplication
PostgreSQL 13 development is coming along nicely, Postgres 13 Beta3 was released on 8/13/2020 . The Postgres Beta 1 and 2 releases were released in May and June 2020. One of the features that has my interest in Postgres 13 is the B-Tree deduplication effort. B-Tree indexes are the default indexing method in Postgres…
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Demonstrations and Political Violence in America: New Data for Summer 2020
The report covers 2020 trends in political violence and demonstrations in the US, focusing on the BLM movement.
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Common color mistakes and how to avoid them
Choosing good colors for your charts is hard. This article tries to make it easier.
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Traffic Prediction with Advanced Graph Neural Networks
By partnering with Google, DeepMind is able to bring the benefits of AI to billions of people all over the world. From reuniting a speech-impaired user with his original voice, to helping users discover personalised apps, we can apply breakthrough research to immediate real-world problems at a Google scale. Today…
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How to Read a Log Scale
What log scales tell us.
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What can 6,000 electric vehicles tell us about EV battery health?
Analysis of electric vehicle battery health of 22K+ EVs reveals a 2.3% average battery degradation rate. High-power DC fast charging is the top risk factor.
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ArangoDB 3.7 – a big step forward for multi-model
The only enterprise AI data platform that cuts complexity, reduces costs, and gets you to production faster.
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The Splitgraph Data Delivery Network – query over 40k public datasets
EnterpriseDB (“EDB”), the leader in accelerating Postgres® in the enterprise, today announced its acquisition of Splitgraph, an early-stage disruptor that provides a Postgres compatible serverless SQL API for building data driven applications from hundreds of datasources. This move is seen as a meaningful step in…
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Elastic 7.9
Elastic 7.9 (Elastic Stack: Elasticsearch, Kibana, Logstash, Beats) delivers new capabilities to market. Get started with a new free tier of Workplace Search, part of Elastic Enterprise Security, and ...
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The Consortium for Python Data API Standards
An initiative to develop API standards for n-dimensional arrays and dataframes
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Backblaze Hard Drive Stats Q2 2020
Hard drive failure rates on an annualized and quarterly basis for 139,867 hard drives by make and manufacturer.
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Understanding Recursive Queries in PostgreSQL
This article gives a simple introduction with examples to recursive queries in PostgreSQL. It also includes a comparison to Oracle recursive queries.
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SQLite 3.33
A complete list of SQLite releases in a single page and a chronology are both also available. A detailed history of every check-in is available at SQLite version control site .
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RethinkDB 2.4.1
We’re pleased to announce the availability of RethinkDB 2.4.1. This update includes bug fixes, build improvements and the reintroduced update checker. For a complete list of changes in this update, you can refer to the release notes . Don’t forget that we replaced our download server, please read our latest blog post .
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US Federal Agricultural Farm Subsidies: How Much Farmers Get By Year
Federal farm subsidies make up an average of 13.5% of net farm income.
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Timescale Cloud: Multi-cloud, fully-managed time-series in AWS, Azure, and GCP
Fully managed PostgreSQL from the creators of TimescaleDB. 99.9% uptime SLA, 10,000+ IOPS, columnar compression up to 95%, and built-in search. Try it free.
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ScaNN: Efficient Vector Similarity Search
Posted by Philip Sun, Software Engineer, Google Research Suppose one wants to search through a large dataset of literary works using queries that r...
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Apache Arrow 1.0
The Apache Arrow team is pleased to announce the 1.0.0 release. This covers over 3 months of development work and includes 810 resolved issues from 100 distinct contributors. See the Install Page to learn how to get the libraries for your platform. Despite a "1.0.0" version, this is the 18th major release of Apache…
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ListenBrainz moves to TimescaleDB
The ListenBrainz team has been working hard on moving our primary listen store from InfluxDB to TimescaleDB , and today at UTC 16:00 we’re going to make the switch.
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Eventual Consistency isn’t for Streaming
Understand why eventual consistency isn't suitable for streaming systems & the systematic errors it can cause with Materialize's insights.
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MariaDB Temporal Data Tables
Complete system-versioned tables: WITH SYSTEM VERSIONING syntax, FOR SYSTEM_TIME AS OF/BETWEEN/ALL queries, and ROW_START/ROW_END columns.
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Making Netflix's Data Infrastructure Cost-Effective
By Torio Risianto, Bhargavi Reddy, Tanvi Sahni, Andrew Park
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