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https://dev.mysql.com/doc/internals/en/mismatch-of-focus-of-test-and-code-sequence.html
CREATE TABLE t1 ( id INT NOT NULL AUTO_INCREMENT, my_column VARCHAR(30), name LONGTEXT, PRIMARY KEY (id)); INSERT INTO t1(my_column,name) VALUES('2','two'); INSERT INTO t1(my_column,name) VALUES('1','one'); INSERT INTO t1(my_column,name) ...
https://dev.mysql.com/doc/internals/en/optimizer-eliminating-dead-code.html
A transformation takes place for conditions that are always true, for example: WHERE 0=0 AND column1='y' In this case, the first condition is removed, leaving WHERE column1='y' See: /sql/sql_select.cc, remove_eq_conds(). A transformation also takes ...
https://dev.mysql.com/doc/internals/en/required-server-code-patches.html
Currently procedures can only be compiled into the server staticly. There is no dynamic procedure for loading them dynamicly yet like we have for UDFs and plugins. The build system is not too clever about creating these symlinks for files added ...
https://dev.mysql.com/doc/internals/en/source-code-locations.html
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https://dev.mysql.com/doc/internals/en/troubleshooting-cmake-code.html
Although there are advanced flags for cmake such as -debug-trycompile and --trace, a simple and efficient way to debug is to add MESSAGE("interesting variable=${variable_name}") to the interesting places in CMakeLists.txt.
https://dev.mysql.com/doc/mysql-shell/9.4/en/mysql-shell-editing-code.html
MySQL Shell's \edit command opens a command in the default system editor for editing, then presents the edited command in MySQL Shell for execution. The command can also be invoked using the short form \e or key combination Ctrl-X Ctrl-E. If you ...
https://dev.mysql.com/doc/mysql-shell/9.4/en/mysql-shell-interactive-code-execution.html
The default mode of MySQL Shell provides interactive execution of database operations that you type at the command prompt. These operations can be written in JavaScript, Python or SQL depending on the current Section 5.1, “Active Language”. As ...
https://dev.mysql.com/doc/connectors/en/connector-j-reference-error-sqlstates.html
The table below provides a mapping of the MySQL error numbers to JDBC SQLState values.
https://dev.mysql.com/doc/connector-j/en/connector-j-reference-error-sqlstates.html
The table below provides a mapping of the MySQL error numbers to JDBC SQLState values.
https://dev.mysql.com/doc/connectors/en/connector-python-api-errors-error.html
This exception is the base class for all other exceptions in the errors module. It can be used to catch all errors in a single except statement. errors.Error is internally used by Connector/Python to raise MySQL client and server errors and should ...