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https://dev.mysql.com/doc/refman/8.4/en/performance-schema-table-reference.html
The following table summarizes all available Performance Schema tables. For greater detail, see the individual table descriptions. Table 29.1 Performance Schema Tables Table Name Description accounts Connection statistics per client account ...
https://dev.mysql.com/doc/relnotes/connector-odbc/en/news-9-3-0.html
(Bug #37536382) Reported errors that occurred while executing multiple statements with a single query were generic and without context. (Bug #116559, Bug #37250400) The following Connector/ODBC Connection Parameters can now be configured on the ODBC ... Functionality Added or Changed Bugs Fixed Functionality Added or Changed All instances of the deprecated function mysql_real_escape_string() in the source code have been replaced by an internal implementation of myodbc_escape_string(), which works similarly and can also handle the escaping of wildcard characters ('_' and '%') in LIKE ...
https://dev.mysql.com/doc/internals/en/syntax-debug-sync-values.html
The string to "assign" to the DEBUG_SYNC variable can contain: {RESET | <sync point name> TEST | <sync point name> CLEAR | <sync point name> {{SIGNAL <signal name> | WAIT_FOR <signal name> [TIMEOUT <seconds>] [NO_CLEAR_EVENT]} [EXECUTE <count>] &| ...This means that one of the sections separated by '&|' must be present or both of ...
https://dev.mysql.com/doc/relnotes/connector-net/en/news-8-0-22.html
(Bug #31669587, Bug #100306) Microseconds were deserialized incorrectly when MySqlCommand.Prepare() was called for a statement that selects a TIME(n) column, resulting in a loss of trailing zeros in the returned result. Now, the MySqlTime class ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-server-states.html
ERROR The member is in an error state and is not functioning correctly as a group member. A member can enter error state either while applying transactions or during the recovery phase. For more information on possible reasons for error states, see ... The state of a Group Replication group member shows its current role in the ...
https://dev.mysql.com/doc/refman/8.4/en/keyring-component-installation.html
Note Only one keyring component or plugin should be enabled at a time. It is not an error for a manifest file not to exist. If the manifest file is found during startup to be read/write to that account, the server writes a warning to the error log ... Keyring service consumers require that a keyring component or plugin be installed: To use a keyring component, begin with the instructions ...
https://dev.mysql.com/doc/refman/8.4/en/plugin-loading.html
However, if a plugin is designed such that it must be loaded and initialized during server startup, attempts to load it at runtime using INSTALL PLUGIN produce an error: mysql> INSTALL PLUGIN myplugin SONAME 'somepluglib.so'; ERROR 1721 (HY000): ...
https://dev.mysql.com/doc/refman/8.4/en/compatibility.html
We use the phrase “the SQL standard” or “standard SQL” to mean the current version of the SQL Standard at any time. We are not targeting real-time support, although MySQL replication capabilities offer significant functionality. This ...
https://dev.mysql.com/doc/refman/8.4/en/environment-variables.html
The AND operation may remove read and write permissions from the directory mode, but not execute permissions. This section lists environment variables that are used directly or indirectly by MySQL. Most of these can also be found in other places in ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-communication-protocol.html
For example: SELECT group_replication_set_communication_protocol("8.0.16"); The group_replication_set_communication_protocol() function is implemented as a group action, so it is executed at the same time on all members of the group. If a member ...