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https://dev.mysql.com/doc/refman/8.0/en/ddl-rewriter-options.html
This section describes the command options that control operation of the ddl_rewriter plugin. If values specified at startup time are incorrect, the ddl_rewriter plugin may fail to initialize properly and the server does not load it. To control ...
https://dev.mysql.com/doc/refman/8.0/en/debugging-server.html
If you are using some functionality that is very new in MySQL, you can try to run mysqld with the --skip-new option (which disables all new, potentially unsafe functionality). If mysqld does not want to start, verify that you have no my.cnf files ...
https://dev.mysql.com/doc/refman/8.0/en/delete-optimization.html
The time required to delete individual rows in a MyISAM table is exactly proportional to the number of indexes. To delete rows more quickly, you can increase the size of the key cache by increasing the key_buffer_size system variable. To delete all ...
https://dev.mysql.com/doc/refman/8.0/en/derived-condition-pushdown-optimization.html
MySQL 8.0.22 and later supports derived condition pushdown for eligible subqueries. When a derived table cannot be merged into the outer query (for example, if the derived table uses aggregation), pushing the outer WHERE condition down to the ...
https://dev.mysql.com/doc/refman/8.0/en/engine-condition-pushdown-optimization.html
This optimization improves the efficiency of direct comparisons between a nonindexed column and a constant. In such cases, the condition is “pushed down” to the storage engine for evaluation. This optimization can be used only by the NDB ...
https://dev.mysql.com/doc/refman/8.0/en/enterprise-encryption-configuring.html
MySQL Enterprise Encryption lets you limit keys to a length that provides adequate security for your requirements while balancing this with resource usage. You can also configure the functions provided by the component_enterprise_encryption ...
https://dev.mysql.com/doc/refman/8.0/en/enterprise-encryption-installation.html
In releases before MySQL 8.0.30, the functions provided by MySQL Enterprise Encryption are installed by creating them individually, based on the openssl_udf shared library. From MySQL 8.0.30, the functions are provided by a MySQL component ...
https://dev.mysql.com/doc/refman/8.0/en/enterprise-encryption-usage.html
To use MySQL Enterprise Encryption in applications, invoke the functions that are appropriate for the operations you wish to perform. In releases before MySQL 8.0.30, MySQL Enterprise Encryption's functions are based on the openssl_udf shared ...
https://dev.mysql.com/doc/refman/8.0/en/enum.html
An ENUM is a string object with a value chosen from a list of permitted values that are enumerated explicitly in the column specification at table creation time. See Section 13.3.1, “String Data Type Syntax” for ENUM type syntax and length ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-destination-configuration.html
This section describes which server options configure the default error log destination, which can be the console or a named file. It also indicates which log sink components base their own output destination on the default destination. This is ...