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How to restore system statistics in InnoDB?

InnoDB System Statistics: How to Restore and Maintain Them In InnoDB, system statistics play a crucial role in query optimization and performance. These statistics help the MySQL query optimizer make informed decisions about query execution […]

How Process Global Area is managed in InnoDB?

InnoDB: Management of the Process Global Area (PGA) In InnoDB, the Process Global Area (PGA) manages per-connection memory and data structures for each client connection, including query execution buffers, sort buffers, and join buffers. […]

Implementing Optimizer Index Caching in InnoDB: Tips and Best Practices

Optimizer Index Caching is a feature in InnoDB that allows the caching of index statistics in the buffer pool to improve query performance. It helps the MySQL query optimizer make better decisions by utilizing the […]

Understanding cursor implementation in MySQL

In MySQL, a cursor is a database object that allows you to retrieve and manipulate data row by row. It provides a mechanism for iterative processing of query results. Cursors are often used when you […]

How to replace subqueries containing aggregate functions in PostgreSQL with Windows functions?

How To Start Logical Replication in PostgreSQL for Specific Tables Based on a pg_dump?

Starting logical replication in PostgreSQL for specific tables based on a pg_dump involves a series of steps. Here’s a step-by-step guide: CREATE PUBLICATION my_publication FOR TABLE table1, table2, …;ALTER PUBLICATION my_publication ADD TABLE table3, table4, […]

Influencing PostgreSQL Query Planner: Understanding Query Hints and Optimizer Barriers

Are you curious why PostgreSQL lacks query hints and how you can still influence execution plans? Discover alternative techniques to force join orders in PostgreSQL and optimize query performance. Why PostgreSQL avoids query hints? Dive […]

How to implement Encryption-at-Rest for PostgreSQL in Kubernetes?

Implementing encryption-at-Rest for PostgreSQL in Kubernetes involves configuring encryption for the persistent storage where PostgreSQL data resides. Below is a step-by-step explanation of how to achieve this, along with a real-world example: apiVersion: apps/v1kind: Deploymentmetadata:name: […]

Reading and Writing Blocks in InnoDB

InnoDB, the default storage engine in MySQL, uses a buffer pool to manage the reading and writing of data blocks. The buffer pool is a cache that holds frequently accessed data pages in memory, reducing […]

SQL/JSON patches committed to PostgreSQL 15!

PostgreSQL SQL/JSON: PostgreSQL continues evolving its support for modern data formats with each release. Notably, PostgreSQL 15 introduces significant improvements to handle JSON data more efficiently. These updates bring greater flexibility, performance, and ease of […]