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https://dev.mysql.com/doc/internals/en/authentication-after-com-change-user-command.html
During Command Phase, a client can send a COM_CHANGE_USER command which will trigger logging into a new account, including the authentication handshake. Similar to the initial authentication the server may reply with a OK_Packet or ERR_Packet for ...
https://dev.mysql.com/doc/internals/en/client-directory.html
The client library includes mysql.cc (the source of the mysql executable) and other utilities. Most of the utilities are mentioned in the MySQL Reference Manual. Generally these are standalone C programs which one runs in "client mode", that is, ...
https://dev.mysql.com/doc/internals/en/cmake-build-options-official-mysql.html
Also, some storage engines are linked statically into mysqld (for example, ARCHIVE). To use them, use the -DBUILD_CONFIG=mysql_release CMake option: Unix (Makefiles) mkdir bld cd bld cmake .. -DBUILD_CONFIG=mysql_release make Visual Studio (from the ...
https://dev.mysql.com/doc/internals/en/cmake-macro-defining-plugin.html
To define a plugin, you need to add the MYSQL_ADD_PLUGIN() macro into CMakeList.txt. If you need to perform system checks, use standard CMake techniques like CHECK_FUNCTION_EXISTS or CHECK_INCLUDE_FILE etc. For example, ...
https://dev.mysql.com/doc/internals/en/cmake-variables-controlling-plugin-building.html
To build a plugin that is statically compiled into the server (assuming that the plugin supports static build), add -DWITH_<PLUGIN>=1 to the CMake command line. To exclude a plugin from the build, use -DWITHOUT_<PLUGIN>=1 If neither WITH_<PLUGIN> ...
https://dev.mysql.com/doc/internals/en/comments-within-boxes.html
Please work 100% perfect when using boxes made of '#'. Bad example similar to what I found in some tests: ############################################### # # # Some text # # Some text # # # # Author : ..... # # # # Some text # # # ...
https://dev.mysql.com/doc/internals/en/cs-sect-expired-password.html
Since MySQL 5.6.7, a MySQL account can be expired with ALTER USER account PASSWORD EXPIRE. If a account is expired, the session is in a restricted mode which only permits SET PASSWORD ... All other statements fail with an error like this: mysql> ...
https://dev.mysql.com/doc/internals/en/debug-sync-activation-deactivation.html
The Debug Sync facility is an optional part of the MySQL server. The Debug Sync Facility, when compiled in, is disabled by default. To enable it, start mysqld with the --debug-sync-timeout[=N] option, where N is a timeout value greater than 0. N ...
https://dev.mysql.com/doc/internals/en/determining-authentication-method.html
Method used for authentication is tied to the user account and stored in the plugin column of mysql.user table. Client informs about the user account it wants to log into in the Handshake Response Packet. Only then server can look-up the mysql.user ...
https://dev.mysql.com/doc/internals/en/error-message-adding.html
The procedure for adding error messages depends on which version of MySQL you are using: Before MySQL 5.0.3, error messages are stored in errmsg.txt files in the language directories under sql/share. That is, the files have names like ...