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https://dev.mysql.com/doc/internals/en/optimizer-trace-system-variable.html
The optimizer_trace system variable has these on/off switches: enabled: allows to enable/disable tracing one_line: if on, the trace will have no whitespace; it's unreadable for humans but readable for JSON parsers (they ignore whitespace); the only ...
https://dev.mysql.com/doc/internals/en/os-directory.html
The files in this directory are the product of the efforts of three people from outside MySQL: Yuri Dario, Timo Maier, and John M Alfredsson.
https://dev.mysql.com/doc/internals/en/os-specific-commands.html
Have a look at the mysqltest manual and the t/mysqltest.test test file. The exec and system commands enable tests to execute external commands. However, many of such commands are available only on certain platforms. (For example, rm is ...
https://dev.mysql.com/doc/internals/en/out-parameter-set.html
Note The closing EOF_Packet does NOT have neither the SERVER_PS_OUT_PARAMS flag nor the SERVER_MORE_RESULTS_EXISTS flag set. Starting with MySQL 5.5.3, prepared statements can bind OUT parameters of stored procedures. They are returned as an extra ...
https://dev.mysql.com/doc/internals/en/packager-friendly-build-options.html
--Wl,--no-undefined cannot be used at the moment if plugins are built because plugins have direct dependency (use symbols) exported by MySQL server. MySQL source distribution contains sources for zlib (compression library), yaSSL (ssl library), ...
https://dev.mysql.com/doc/internals/en/parsing-key-information.html
Many of the index methods pass a byte array named *key that identifies the index entry to be read in a standard format. Your storage engine will need to extract the information stored in the key and translate it into its internal index format to ...
https://dev.mysql.com/doc/internals/en/perfect-cleanup.html
Close all connections which you have explicitly created and please ensure that the disconnect is finished = the sessions are no more visible within the processlist. Cleaning up becomes much more comfortable and less error prone if you create your ...
https://dev.mysql.com/doc/internals/en/plugins.html
For example, several storage engines have been converted to plugins, and they can be selected or disabled at configuration time. Beginning with MySQL 5.1, the server supports a plugin architecture for loading plugins. You can build a plugin as ...
https://dev.mysql.com/doc/internals/en/prepared-stored-statement-execution.html
During the first execution of the prepared statement the server may perform non-destructive transformations of statement's parsed tree: normally that would belong to a separate step executed at statement prepare, but once again, this haven't been ...
https://dev.mysql.com/doc/internals/en/public-key-retrieval.html
If the client doesn't have the public key it can ask for it by: sending 0x01 as auth response in the Protocol::HandshakeResponse41 server will send a Protocol::AuthMoreData with the keyfile client sends the encrypted password .