It is a known good practice to keep only necessary indexes to reduce the write performance and disk space overhead. This simple rule is mentioned briefly in the official MySQL Documentation:https://dev.mysql.com/doc/refman/8.0/en/optimization-indexes.htmlHowever, in some cases, the overhead from adding a new index can be way above the expectations! Recently, I’ve been analyzing a customer case like […]

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Disclaimer: The majority of examples in this post, are performed in a personal development/learning workstation environment and should not be considered production quality or ready. Your particular goals and needs may vary. Like always, …

MySQL Shorts Episode #55, discussing restoring a MySQL HeatWave backup, is now available.

Data is abstract. Geospatial design management is how engineers across various disciplines make sense of complex data to make more informed decisions and better understand the spatial relationships in the world around us. In this blog post, I explore how complex data and geographic features can be represented in MySQL. Geospatial data, often referred to in technical documentation as geodata, includes information related to locations on the Earth's surface. In MySQL, geographic features represent anything in the real world with a location and are defined as either Entities or Space. Type Definition Examples Entities Specific objects with defined boundaries and individual properties Landmarks: Mountains, rivers, forests, buildings Infrastructure: Roads, bridges, power lines Administrative areas: Countries, cities, states Points of interest: Restaurants, shops, ATMs Spaces Continuous areas defined by their location and characteristics Land cover: …

This blog demonstrates how to setup OpenVPN Access Server for access to MySQL HeatWave.

A little over a week ago, we released Galera Cluster for MySQL 8.0.35. Today, we have also made available binaries for Debian 12 “bookworm”.

As always we have binary installation documentation available, and if you are just after a quick install, the following is what is in your /etc/apt/sources.list.d/galera.list:

deb https://releases.galeracluster.com/galera-4.17/debian bookworm main
deb https://releases.galeracluster.com/mysql-wsrep-8.0.35-26.16/debian bookworm main

Happy installing, and the next step is to ensure that Debian 12 is enabled on Galera …

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Code, content, and community for developers.

The LAMP stack and the PHP technologies and frameworks it runs.

Be sure you’re subscribed to the OpenLampTech newsletter so you don’t miss any of the great content.

Thank you for reading this post. Please share it with someone else who would enjoy it as well.

Disclaimer: The majority of examples in this post, are performed in a personal development/learning workstation environment and should not be considered production quality or ready. Your particular goals and needs may vary. Like always, …

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Episode #54 of MySQL Shorts is now available!

In this blog post, we will discuss how to validate at the operating system level the effects of changing the innodb_flush_method to variations other than the default (particularly for O_DIRECT which is most commonly used) and the use of innodb_use_fdatasync.IntroductionFirst, let’s define what the innodb_flush_method parameter does. It dictates how InnoDB manages the flushing of data […]