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https://dev.mysql.com/doc/internals/en/myisampack.html
After that it tries to combine byte value compression trees of different columns into one or more code trees. This means that finally we may have less code trees than columns. Therefore the column information in the file header contains the number ...When starting to analyze the existing uncompressed data, it collects distinct column values up to a limit of ...
https://dev.mysql.com/doc/internals/en/sleep.html
Then the remaining thread has plenty of time to go through the critical piece of code. The problem here is to assure that the blocking threads run until they reach their blocking point before the remaining thread reaches the critical code. One ...
https://dev.mysql.com/doc/connector-j/en/connector-j-installing-source.html
Caution You need to install Connector/J from source only if you want to build a customized version of Connector/J or if you are interested in helping us test our new code. Check out the code from the source code repository for MySQL Connector/J ...
https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-utf32.html
Also, unlike utf16, there are no tricks for encoding in utf32, so the stored value equals the code value. There is in fact only one validity check for utf32: No code value may be greater than 0x10ffff. The utf32 character set is fixed length (like ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-setup-instruments-table.html
Each instrument added to the source code provides a row for the setup_instruments table, even when the instrumented code is not executed. If an enabled instrument is not timed, the instrument code is enabled, but the timer is not. The ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema.html
The PERFORMANCE_SCHEMA storage engine collects event data using “instrumentation points” in server source code. Data collection is implemented by modifying the server source code to add instrumentation. Execution of server code proceeds normally ... The MySQL Performance Schema is a feature for monitoring MySQL Server execution at a low ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-8.html
A PasswordHandler interface that allows custom implementations of password handling code. (Bug #20182108) Bugs Fixed Important Change: Following the changes in MySQL Server 8.0.3, the system variables tx_isolation and tx_read_only have been replaced ... Version 8.0.8 Development Milestone is the latest development release of the 8.0 branch of MySQL Connector/J, providing an insight into upcoming ...
https://dev.mysql.com/doc/mysql-router/9.4/en/mysql-router-installation-linux.html
Download the source code and compile yourself: The source code is available as part of MySQL Server at https://dev.mysql.com/downloads/mysql. Alternatively, the source code is also available on GitHub (specifically in the router directory). For ...
https://dev.mysql.com/doc/mysql-shell/9.4/en/mysql-shell-plugins-groups.html
The containing folder can contain other files with code that is shared by the plugins in the plugin group. Common code for the plugins is stored in this folder at C:\Users\exampleuser\AppData\Roaming\MySQL\mysqlsh\plugins\ext\common.py The plugins ... You can create a plugin group by placing the folders for multiple MySQL Shell plugins in a containing folder under the plugins ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-host-cache-table.html
An authentication plugin can report different error codes to indicate the root cause of a failure. While HOST_VALIDATED is NO, DNS resolution is attempted for each connection attempt, until it eventually completes with either a valid result or a ...