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https://dev.mysql.com/doc/refman/8.4/en/rewriter-query-rewrite-plugin.html
The Rewriter plugin uses a database named query_rewrite containing a table named rewrite_rules. The table provides persistent storage for the rules that the plugin uses to decide whether to rewrite statements. Users communicate with the plugin by ...
https://dev.mysql.com/doc/refman/8.4/en/server-side-help-support.html
This information is stored in several tables in the mysql schema (see Section 7.3, “The mysql System Schema”). Proper operation of the HELP statement requires that these help tables be initialized. For a new installation of MySQL using a binary ... MySQL Server supports a HELP statement that returns information from the MySQL Reference Manual (see Section 15.8.3, “HELP ...
https://dev.mysql.com/doc/refman/8.4/en/session-state-tracking.html
A client can enable these trackers to receive notification of changes to its session state. Uses for Session State Trackers Available Session State Trackers C API Session State Tracker Support Test Suite Session State Tracker Support Uses for ...
https://dev.mysql.com/doc/refman/8.4/en/set.html
A SET is a string object that can have zero or more values, each of which must be chosen from a list of permitted values specified when the table is created. Trailing spaces are automatically deleted from SET member values in the table definition ...SET column values that consist of multiple set members are specified with members separated by commas ...
https://dev.mysql.com/doc/refman/8.4/en/socket-pluggable-authentication.html
Alternatively, to load the plugin at runtime, use this statement: INSTALL PLUGIN auth_socket SONAME 'auth_socket.so'; INSTALL PLUGIN loads the plugin immediately, and also registers it in the mysql.plugins system table to cause the server to load it ... The server-side auth_socket authentication plugin authenticates clients that connect from the local host through the Unix socket ...
https://dev.mysql.com/doc/refman/8.4/en/string-comparison-functions.html
Table 14.13 String Comparison Functions and Operators Name Description LIKE Simple pattern matching NOT LIKE Negation of simple pattern matching STRCMP() Compare two strings If a string function is given a binary string as an argument, the ...A ...
https://dev.mysql.com/doc/refman/8.4/en/sys-diagnostics.html
Configuration Options diagnostics() operation can be modified using the following configuration options or their corresponding user-defined variables (see Section 30.4.2.1, “The sys_config Table”): debug, @sys.debug If this option is ON, produce ... Creates a report of the current server status for diagnostic ...
https://dev.mysql.com/doc/refman/8.4/en/sys-schema-prerequisites.html
Before using the sys schema, the prerequisites described in this section must be satisfied. Because the sys schema provides an alternative means of accessing the Performance Schema, the Performance Schema must be enabled for the sys schema to work.
https://dev.mysql.com/doc/refman/8.4/en/test-pluggable-authentication.html
To verify plugin installation, examine the Information Schema PLUGINS table or use the SHOW PLUGINS statement (see Section 7.6.2, “Obtaining Server Plugin Information”). For example: $> mysql --user=testuser --password Enter password: ... MySQL ...
https://dev.mysql.com/doc/refman/8.4/en/using-encrypted-connections.html
These system variables on the server side specify the certificate and key files the server uses when permitting clients to establish encrypted connections: ssl_ca: The path name of the Certificate Authority (CA) certificate file. The following table ... Several configuration parameters are available to indicate whether to use encrypted connections, and to specify the appropriate certificate and key ...