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https://dev.mysql.com/doc/refman/8.0/en/charset-metadata.html
To satisfy both requirements, MySQL stores metadata in a Unicode character set, namely UTF-8. Error messages returned from the server to the client are converted to the client character set automatically, as with metadata. Although automatic ...
https://dev.mysql.com/doc/refman/8.0/en/charset-server.html
MySQL Server has a server character set and a server collation. By default, these are utf8mb4 and utf8mb4_0900_ai_ci, but they can be set explicitly at server startup on the command line or in an option file and changed at runtime. Initially, the ...
https://dev.mysql.com/doc/refman/8.0/en/charset.html
MySQL includes character set support that enables you to store data using a variety of character sets and perform comparisons according to a variety of collations. The default MySQL server character set and collation are utf8mb4 and ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-concurrent-ddl.html
If a backup lock is not obtained with the specified time limit, the cloning operation fails with an error. Prior to MySQL 8.0.27, DDL operations on the donor and recipient MySQL Server instances, including TRUNCATE TABLE, are not permitted during a ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-encrypted-data.html
An error is reported if an encrypted connection is not available or the REQUIRE NO SSL clause is used in the CLONE INSTANCE statement. The following requirements apply: A secure connection is required when cloning remote data to ensure safe transfer ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-monitoring.html
You can monitor the status and progress of a cloning operation on the recipient MySQL server instance using the clone_status and clone_progress Performance Schema tables. Note The clone_status and clone_progress Performance Schema tables can be used ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-options-variables.html
In this case, the server may also produce error messages for other clone settings because it does not recognize them. This section describes the system variables that control operation of the clone plugin. If values specified at startup are ...
https://dev.mysql.com/doc/refman/8.0/en/clone.html
An error is returned if the explicit specification cannot be satisfied. CLONE clone_action clone_action: { LOCAL DATA DIRECTORY [=] 'clone_dir'; | INSTANCE FROM 'user'@'host':port IDENTIFIED BY 'password' [DATA DIRECTORY [=] 'clone_dir'] [REQUIRE ...
https://dev.mysql.com/doc/refman/8.0/en/close.html
If not closed explicitly, a cursor is closed at the end of the BEGIN ...
https://dev.mysql.com/doc/refman/8.0/en/compiling-for-debugging.html
If they find something “unexpected,” an entry is written to stderr, which mysqld_safe directs to the error log! This also means that if you are having some unexpected problems with MySQL and are using a source distribution, the first thing you ... If you have some very specific problem, you can always try to debug ...