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https://dev.mysql.com/doc/internals/en/providing-index-information-to-optimizer.html
This information is used to choose whether to use an index, and if so, which index to use. In order for indexing to be used effectively, storage engines need to provide the optimizer with information about the table and its indexes.
https://dev.mysql.com/doc/internals/en/pstack-directory.html
This is a set of publicly-available debugging aids which all do pretty well the same thing: display the contents of the stack, along with symbolic information, for a running process. There are versions for various object file formats (such as ELF ...
https://dev.mysql.com/doc/internals/en/record-contents.html
This section is still to be written. ...
https://dev.mysql.com/doc/internals/en/replication-crashes.html
Status of this subsection: Not started 2009-10-21 ...
https://dev.mysql.com/doc/internals/en/replication-locks.html
Status of this subsection: not started 2009-10-21 ...
https://dev.mysql.com/doc/internals/en/replication-principles.html
In this section, we describe the architectural principles of replication. The principles have been used as guidelines to construct the Rules of replication (next section).
https://dev.mysql.com/doc/internals/en/result-postprocessing-procedures.html
Note This section is not about SQL stored procedures but about MySQL procedures like Using PROCEDURE ANALYSE. For internal information on SQL stored procedures see the Chapter 16, Stored Programs.
https://dev.mysql.com/doc/internals/en/sccs-directory.html
You will see this directory if and only if you used BitKeeper for downloading the source. The files here are for BitKeeper administration and are not of interest to application programmers.
https://dev.mysql.com/doc/internals/en/secure-password-authentication.html
The password is calculated by: SHA1( password ) XOR SHA1( "20-bytes random data from server" <concat> SHA1( SHA1( password ) ) ) .
https://dev.mysql.com/doc/internals/en/select-select-engine.html
If this is the first time, call JOIN::optimize and JOIN::exec(), else do nothing or JOIN::reinit()JOIN::exec() depending on type of subquery. subselect_single_select_engine: constructor allocate JOIN and store pointers on SELECT_LEX and JOIN.