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Databases & Data

The most popular blog posts about databases & data on Hacker News. 2,338 posts.

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2044

PostgreSQL Subtransactions Considered Harmful

PostgreSQL subtransactions (nested transactions) may cause multiple performance and scalability issues: higher rates of XID growth and higher risks of transaction ID wraparound, performance degradation when more than PGPROC_MAX_CACHED_SUBXIDS (64) are used in a session, drastic performance slowdowns when…

2047

OpenSearch 3.0 Released

The OpenSearch Software Foundation today announced the general availability of OpenSearch 3.0. This major release delivers a 9.5x performance improvement over OpenSearch 1.3, building on benchmarking data that showed earlier iterations of OpenSearch operating 1.6x faster than its closest industry competitor.

2049

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 ...

2055

TensorFlow Feature Columns

Welcome to Part 2 of a blog series that introduces TensorFlow Datasets and Estimators. We're devoting this article to —a data structure describing the features that an Estimator requires for training and inference. As you'll see, feature columns are very rich, enabling you to represent a diverse range of data.

2056

Trends in the San Francisco (mostly dog?) poop crisis

Oscar Wilde once said, “it’s an odd thing but anyone who disappears is said to be in San Francisco.” Indeed, with the weather, view, and diversity, San Francisco is one of the most beautiful cities in the U.S. But then, every city has a dark side, and San Francisco is no exception. San Francisco, as […]