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https://dev.mysql.com/doc/internals/en/integer.html
Depending on the context, the first byte may also have other meanings: If it is 0xfb, it is represents a NULL in a ProtocolText::ResultsetRow. The MySQL Protocol has a set of possible encodings for integers: Fixed-length integers Length-encoded ...
https://dev.mysql.com/doc/internals/en/join-buffer-size.html
Basic information about the join buffer cache: The size of each join buffer is determined by the value of the join_buffer_size system variable. This buffer is used only when the join is of type ALL or index (in other words, when no possible keys ...
https://dev.mysql.com/doc/internals/en/listing-configuration-options.html
-LA If you have cmake-gui installed, you can do this to see or change options: cmake-gui . After the initial configuration step completes, you can examine the configuration options. -LH Long form (lists lots of options, including internal and ...
https://dev.mysql.com/doc/internals/en/logging-transactions-preliminary-rules.html
In particular, changes to N-tables shall be written to the binary log when they have been executed, and changes to T-tables shall be written to the binary log on commit. The following preliminary rules are actually consequences of the principle ...
https://dev.mysql.com/doc/internals/en/logging-transactions-rules-for-create-table-select.html
(Note: currently Bug#47899 breaks this rule) Note: this breaks D-rpl-correct rule, because the slave will have an intermediate state that never existed on the master (namely, a state where the new table exists and is empty).
https://dev.mysql.com/doc/internals/en/make-test-protocols-more-understandable.html
Please have the test write comments into the protocol if this makes the surrounding protocol content much more understandable. This is especially true for tests that do the following: Suppress the printing of SQL statements and result sets Work ...
https://dev.mysql.com/doc/internals/en/memory-allocation-mysql-server.html
Some objects have their own MEMROOT: TABLE TABLE_SHARE Query_arena st_transactions . The basic logic to use: All things that are used only for the duration of a query are allocated in THD::mem_root through sql_alloc() or thd->alloc() except: Things ...
https://dev.mysql.com/doc/internals/en/miscellaneous-options.html
For Autotools MySQL build options that have CMake equivalents, the normal mapping from an Autotools option to the CMake option is to convert uppercase, remove leading dashes, replace dashes with underscores, and add a leading -D.
https://dev.mysql.com/doc/internals/en/myisammrg-directory.html
As with other table handlers, you'll find that the *.c files in the myissammrg directory have counterparts in the myisam directory. In fact, this general description of a myisammrg program is almost always true: The myisammrg function checks an ...
https://dev.mysql.com/doc/internals/en/mysql-services-for-plugins.html
As of MySQL 5.5, plugins have access to server “services.” The services interface exposes server functionality that plugins can call. It complements the plugin API and has these characteristics: Services enable plugins to access code inside the ...