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https://dev.mysql.com/doc/relnotes/connector-net/en/news-8-0-17.html
With SSH server authorization, an application can establish a connection from behind a firewall when the MySQL Server port is blocked. (Bug #28928543, Bug #93202) Connector/NET access to MySQL stopped working after the computer hosting the server ...
https://dev.mysql.com/doc/connector-j/en/connector-j-usagenotes-j2ee-concepts-load-balancing-failover.html
Your application may use temporary tables, server-side session state variables, or connection state, where letting the driver arbitrarily swap physical connections before processing is complete could cause data loss or other problems. When trying to ... Connector/J provides a useful load-balancing implementation for MySQL Cluster or multi-source deployments, as explained in Section 9.3, “Configuring Load Balancing with Connector/J” and Support for Multiple-Source Replication ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-20.html
It is suitable for use with MySQL Server versions 8.0, 5.7, and 5.6. (Bug #30832513) Authentication failed when a client tried to connect to a server that used Windows Authentication Plugin and the Kerberos protocol. This fix corrects the issue by ... Version 8.0.20 is the latest General Availability release of the 8.0 series of MySQL ...
https://dev.mysql.com/doc/refman/9.7/en/charset-unicode-conversion.html
In terms of table structure, these are the primary potential incompatibilities: For the variable-length character data types (VARCHAR and the TEXT types), the maximum permitted length in characters is less for utf8mb4 columns than for utf8mb3 ...
https://dev.mysql.com/doc/refman/9.7/en/loadable-function-reference.html
For a table listing built-in functions and operators, see Section 14.1, “Built-In Function and Operator Reference” For general information about loadable functions, see Section 7.7, “MySQL Server Loadable Functions”. The following table ...
https://dev.mysql.com/doc/refman/9.7/en/replication-implementation.html
Replication is based on the source server keeping track of all changes to its databases (updates, deletes, and so on) in its binary log. The binary log serves as a written record of all events that modify database structure or content (data) from ...Typically, SELECT statements are not recorded because they modify neither database structure nor ...
https://dev.mysql.com/doc/mysql-router/9.7/en/router-read-write-splitting-configuration.html
Per-Session Configuration Read-write splitting configuration can be defined per session, using one of the following: ROUTER SET optionName='value' query_attributes router.optionName value The following are the possible optionNames and values: ... To ...
https://dev.mysql.com/doc/mysql-shell/9.7/en/add-instances-cluster.html
When a new instance is added to the cluster, the local address for this instance is automatically added to the group_replication_group_seeds variable on all online cluster instances in order to allow them to use the new instance to rejoin the group, ... You need a minimum of three instances in an InnoDB Cluster to make it tolerant to the failure of one ...
https://dev.mysql.com/doc/c-api/9.7/en/mysql-stmt-execute.html
The currently bound parameter marker values are sent to server during this call, and the server replaces the markers with this newly supplied data. CR_SERVER_LOST The connection to the server was lost during the query. The mysql variable is assumed ... int mysql_stmt_execute(MYSQL_STMT *stmt) Description mysql_stmt_execute() executes the prepared query associated with the statement ...
https://dev.mysql.com/doc/relnotes/mysql-enterprise-backup/9.7/en/news-9-4-0.html
(Bug #37196546) After a backup was finished, the values of the server's status variables Com_stmt_prepare and Com_stmt_close did not match. It was because mysqlbackup, after using prepared statements to query the server, closed its connection to the ... Note These release notes were created with the assistance of MySQL HeatWave ...