MinervaDB

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MySQL Performance

How MySQL optimizer works?

How does MySQL optimizer work? The MySQL optimizer is responsible for determining the most efficient way to execute a SQL statement. It evaluates different query execution plans and chooses the one that it estimates will […]
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MySQL Performance

MySQL Latches: Understanding How They Work

Understanding Latches in MySQL In MySQL, latches are used to protect shared data structures and ensure consistency in the database. They are used by the storage engine to synchronize access to shared resources such as […]
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PostgreSQL DBA

PostgreSQL 15 Parallelized Vacuum: How to Implement It

How to implement Parallelized Vacuum in PostgreSQL 15? In PostgreSQL 15, the parallelized vacuum feature allows you to run multiple vacuum processes in parallel, which can significantly improve the performance of the vacuum operation. Here [...]
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Linux Performance

Linux Queueing: How It Influences Performance

How does queueing affect Linux Server performance? In Linux, queueing is implemented using a variety of different tools and mechanisms. Some of the most common tools and mechanisms used for queueing in Linux include: The [...]
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PostgreSQL DBA

What’s new with PostgreSQL 15?

PostgreSQL 15 new features  PostgreSQL 15, the latest version of the popular open-source relational database management system, was released on October 3rd, 2021 and it comes with several new features and improvements: Parallelized Vacuum: PostgreSQL [...]
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MySQL Performance

MySQL Thread Performance Troubleshooting Guide

Troubleshooting MySQL Thread Performance - MySQL DBA Scripts Series(Tricks and Techniques) Overview This post is about how we can troubleshoot MySQL Thread performance intuitively.  Several folks have asked me by now about how I do [...]
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MariaDB

What’s new and changed with MariaDB 10.8?

What's new and changed with MariaDB 10.8? Added support for IN,OUT and INOUT qualifying parameters for stored functions in MariaDB 10.8, MariaDB already supports IN, OUT and INOUT parameters. This contribution was made by ManoharKB [...]
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MinervaDB

PostgreSQL Character Set Support in PostgreSQL 13

PostgreSQL 13 Character Set Support The character set support in PostgreSQL allows you to store text in a variety of character sets (also called encodings), including single-byte character sets such as the ISO 8859 series [...]