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https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-performanceschema-category.html
The default value is calculated at server build time based on the number of commands in the client/server protocol and the number of SQL statement types supported by the server. Enabled The value of this variable is ON or OFF to indicate whether the ... Lists the Performance Schema configuration metrics and provides a brief description of ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/plugin-api-components.html
SQL statements: INSTALL PLUGIN registers a plugin in the mysql.plugin table and loads the plugin code. UNINSTALL PLUGIN unregisters a plugin from the mysql.plugin table and unloads the plugin code. Command-line options and system variables: The ...
https://dev.mysql.com/doc/refman/8.4/en/binary-installation.html
MySQL compressed tar file binary distributions have names of the form mysql-VERSION-OS.tar.xz, where VERSION is a number (for example, 8.4.6), and OS indicates the type of operating system for which the distribution is intended (for example, ...This ...These include generic binary distributions in the form of compressed tar files (files with a .tar.xz extension) for a number of platforms, and binaries in platform-specific package formats for selected ...
https://dev.mysql.com/doc/refman/8.4/en/error-log-configuration.html
For example, to load the JSON log sink, issue the following statement: INSTALL COMPONENT 'file://component_log_sink_json'; Loading a component using INSTALL COMPONENT registers it in the mysql.component system table so that the server loads it ...By ... In MySQL 8.4, error logging uses the MySQL component architecture described at Section 7.5, “MySQL ...The error log subsystem consists of components that perform log event filtering and writing, as well as ...
https://dev.mysql.com/doc/connectors/en/connector-j-connection-compression-xdevapi.html
Connector/J supports data compression for X DevAPI connections when working with MySQL Server 8.0.19 and later. Out of all the compression algorithms now supported by MySQL Server for X DevAPI connections, Connector/J provides out-of-the-box ...The ...General details about this feature can be found in Connection Compression with X ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-statementprocessing-category.html
Big Selects Enabled If set to 0, MySQL aborts SELECT statements that are likely to take a very long time to execute (that is, statements for which the optimizer estimates that the number of examined rows exceeds the value of max_join_size). Buffer ... Lists the Statement Processing configuration metrics and provides a brief description of ...
https://dev.mysql.com/doc/connector-j/en/connector-j-connection-compression-xdevapi.html
Connector/J supports data compression for X DevAPI connections when working with MySQL Server 8.0.19 and later. Out of all the compression algorithms now supported by MySQL Server for X DevAPI connections, Connector/J provides out-of-the-box ...The ...General details about this feature can be found in Connection Compression with X ...
https://dev.mysql.com/doc/refman/8.4/en/charset-database.html
The CHARACTER SET and COLLATE clauses make it possible to create databases with different character sets and collations on the same MySQL server. For LOAD DATA statements that include no CHARACTER SET clause, the server uses the character set ...
https://dev.mysql.com/doc/refman/8.4/en/error-log-priority-based-filtering.html
Consider a server started with these settings: [mysqld] log_error_verbosity=2 # error and warning messages only log_error_suppression_list='ER_PARSER_TRACE,MY-010001,10002' In this case, log_error_verbosity permits messages with ERROR or WARNING ...
https://dev.mysql.com/doc/refman/8.4/en/show-engines.html
SHOW [STORAGE] ENGINES SHOW ENGINES displays status information about the server's storage engines. For information about MySQL storage engines, see Chapter 17, The InnoDB Storage Engine, and Chapter 18, Alternative Storage Engines. row ...This is ...