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InnoDB Process Global Area: How It Is Managed

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. […]

InnoDB Optimizer Index Caching: 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 […]

InnoDB Reading and Writing Blocks Explained

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 […]

MySQL Streaming Versus Blocking Operators Explained

In MySQL, operators in a query execution plan can be classified as streaming or blocking. This classification is based on how they process and propagate rows during query execution. Let’s explore the differences between streaming […]

InnoDB MVCC: How It Is Implemented

Multiversion Concurrency Control (MVCC) is a mechanism that is used by InnoDB, the default storage engine in MySQL, to provide transactional consistency and support for concurrent access to the same data. In InnoDB, MVCC is […]

InnoDB early lock release

InnoDB early lock release is a feature in MySQL 8 and higher that allows the database to release locks earlier in the transaction processing process. This helps to reduce lock contention and improve overall performance. […]

InnoDB Page Compression: How It Is Implemented

Page compression is implemented in InnoDB using the “Compressed InnoDB Tables” feature. This feature compresses the data stored in individual pages of the InnoDB tables, reducing their size and thus reducing the amount of disk […]

InnoDB Data Files: How They Are Managed

How data files are managed in InnoDB? In InnoDB, data files are managed using a combination of data dictionary tables and system tablespace files. Data dictionary tables: InnoDB stores metadata about the database, such as [...]

How InnoDB fill factor affect MySQL performance?

How InnoDB fill factor affect MySQL performance? InnoDB fill factor is a configuration parameter that controls how much space is reserved in the leaf pages of a B-tree index when it is created or rebuilt. [...]

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