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Databases & Data

The most popular blog posts about databases & data on Hacker News. 2,337 posts.

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IPv6 Support for Amazon S3

Update October 1, 2021 – This post has been edited to remove outdated S3 buckets. As you probably know, every server and device that is connected to the Internet must have a unique IP address. Way back in 1981, RFC 791 (“Internet Protocol”) defined an IP address as a 32-bit entity, with three distinct network […]

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Postgres Count Performance

Everybody counts, but not always quickly. This post looks into how the PostgreSQL database optimizes counting. In Postgres, there are ways to count orders of magnitude faster. We’ll look at exact counts (distinct counts) as well as estimated counts, using approximation algorithms such as HyperLogLog (HLL) in Postgres.

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Amazon S3 Lifecycle Management for Versioned Objects

Today I would like to tell you about a powerful new AWS feature that bridges a pair of existing AWS services and makes another pair of existing features far more useful! Let’s start with a quick review. S3 & Versioned Objects I’m sure that you already know about Amazon S3. First launched in 2006, S3 […]

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Amazon RDS on Graviton2 Processors

I recently wrote a post to announce the availability of M6g, R6g and C6g families of instances on Amazon Elastic Compute Cloud (Amazon EC2). These instances offer better cost-performance ratio than their x86 counterparts. They are based on AWS-designed AWS Graviton2 processors, utilizing 64-bit Arm Neoverse N1 cores…