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https://dev.mysql.com/doc/refman/9.7/en/outer-join-optimization.html
MySQL implements an A LEFT JOIN B join_specification as follows: Table B is set to depend on table A and all tables on which A depends. Table A is set to depend on all tables (except B) that are used in the LEFT JOIN condition. The LEFT JOIN ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-mysql-option-table.html
To be shown in this table, a component or plugin must be written and compiled with support for the Option Tracker component. Not all MySQL components and plugins currently available provide such support. See Section 7.5.9.2, “Option Tracker ...
https://dev.mysql.com/doc/refman/9.7/en/server-configuration.html
The MySQL server, mysqld, has many command options and system variables that can be set at startup to configure its operation. To determine the default command option and system variable values used by the server, execute this command: $> mysqld ...
https://dev.mysql.com/doc/refman/9.7/en/spatial-relation-functions-mbr.html
MySQL provides several MySQL-specific functions that test the relationship between minimum bounding rectangles (MBRs) of two geometries g1 and g2. The return values 1 and 0 indicate true and false, respectively. The MBR (also known as the bounding ...
https://dev.mysql.com/doc/refman/9.7/en/subquery-materialization.html
The optimizer uses materialization to enable more efficient subquery processing. Materialization speeds up query execution by generating a subquery result as a temporary table, normally in memory. The first time MySQL needs the subquery result, it ...
https://dev.mysql.com/doc/refman/9.7/en/faqs-cjk.html
This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) issues. What problems should I be aware of when working with the Big5 ...
https://dev.mysql.com/doc/refman/9.7/en/keyring-hashicorp-component.html
Note The component_keyring_hashicorp component is an extension included in MySQL Enterprise Edition, a commercial product. The component_keyring_hashicorp keyring component communicates with HashiCorp Vault for back end storage, and supports ...
https://dev.mysql.com/doc/refman/9.7/en/keyring-hashicorp-plugin.html
Note The keyring_hashicorp plugin is an extension included in MySQL Enterprise Edition, a commercial product. Important The keyring_hashicorp keyring plugin is deprecated, and is being replaced by the Hashicorp Keyring component ...
https://dev.mysql.com/doc/refman/9.7/en/manual-info.html
This is the Reference Manual for the MySQL Database System, version 9.7, through release 9.7.0. Differences between minor versions of MySQL 9.7 are noted in the present text with reference to release numbers (9.7.x). This manual is not intended for ...
https://dev.mysql.com/doc/refman/9.7/en/source-installation-doxygen.html
The MySQL source code contains internal documentation written using Doxygen. It is also possible to generate this content locally from a MySQL source distribution using the following procedure: Install doxygen 1.9.2 or later. After installing ...