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Topics /
Databases & Data
The most popular blog posts about databases & data on Hacker News. 2,338 posts.
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DBLog: A Change-Data-Capture Framework
Andreas Andreakis, Ioannis Papapanagiotou
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Amazon DynamoDB Update – Global Tables and On-Demand Backup
AWS customers in a wide variety of industries use Amazon DynamoDB to store mission-critical data. Financial services, commerce, AdTech, IoT, and gaming applications (to name a few) make millions of requests per second to individual tables that contain hundreds of terabytes of data and trillions of items, and count on…
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Following a Select Statement Through Postgres Internals
Find out for yourself how Postgres works internally. Learn what a postgres server does when it receives select statements and how it understands SQL.
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Using watermarks to coordinate change data capture in Postgres
Explore the challenges of building a change data capture (CDC) pipeline for Postgres. And see how Sequin used a watermark design inspired by Netflix's DBLog.
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Showdown: MySQL 8 vs. PostgreSQL 10
Now that MySQL 8 and PostgreSQL 10 are out, it's a good time to revisit how the two major open source relational databases compete against each other. Before these versions, the general perception has been that while Postgres is superior in feature sets and its pedigree, MySQL is more battle
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U.S. universities, rich in data, struggle to capture its value, study finds
A UCLA–MIT Press paper highlights a lack of data infrastructure and data strategy in U.S. higher education.
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WebAssembly is eating the database?
User-Defined Functions: powered by WebAssembly
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20x faster than pgvector: HNSW index in Postgres with pg_embedding
We’re excited to announce the release of our pg_embedding extension for Postgres and LangChain! The new pg_embedding extension brings 20x the speed for 99% accuracy to graph-based approximate nearest neighbor search to your Postgres databases. While the pgvector extension with IVFFlat indexing has been a popular…
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RethinkDB 1.9: Indexing and query runtime performance
This release includes massive enhancements that improve performance of many queries by orders of magnitude. See the full list of enhancements , or watch Joe Doliner ( @jdoliner ), an engineer at RethinkDB, talk about the 1.9 release in this two-minute video:
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InfluxDB now supports Prometheus remote reads and writes natively
We were inspired after Paul Dix, Co-Founder and CTO of InfluxData spoke at PromCon and received interest in more integration between Prometheus and InfluxDB. We are excited to introduce InfluxDB Prometheus Interoperability - InfluxDB 1.4, which now sup...
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32k context length text embedding models
TL;DR – We are excited to announce voyage-3 and voyage-3-lite embedding models, advancing the frontier of retrieval quality, latency, and cost. voyage-3 outperforms OpenAI v3 large by 7.55% on aver…
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Pocket Watch: Verifying Exabytes of Data
Dash knows your context, your team, and your work, so your team can stay organized, easily find and share knowledge, and keep projects secure, all from one place.
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Automated PDF Reports with Python Notebooks
Learn how to build automated PDF reports in Python with Jupyter and Mercury, including scheduling, charts, and email delivery workflows.
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Deconstructing the Postgres planner to find indexing opportunities
We take a behind the scenes look at the pganalyze Index Advisor and discuss a few recent improvements, such as utilizing selectivity information better.
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mrjob: Yelp open sources its Elastic MapReduce framework for Python
mrjob: Distributed Computing for Everybody Dave M Search and Data-Mining Engineer Oct 29, 2010 Ever wonder how we power the People Who Viewed this Also Viewed… feature? How does Yelp...
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Cracking open the black box of automated machine learning
ATMSeer is an interactive visualization tool for users to see and control algorithms and hyperparameters of machine-learning (AutoML) systems. The work was developed by researchers in the MIT Laboratory for Information and Decision Systems (LIDS), Hong Kong University of Science and Technology (HKUST), and Zhejiang…
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Monotonicity Types: Towards a Type System for Eventual Consistency
A few weeks back, we published a draft of an article entitled _Monotonicity Types_. In it, we describe a type system which we hope can aid the design of distributed systems by tracking monotonicity with types....
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Open-sourcing Pinterest MySQL management tools
Building the platform where people around the world come to search, save and shop