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https://dev.mysql.com/doc/internals/en/optimizer-partition-pruning.html
Therefore its implementation is a part of the MySQL Query Optimizer. Now we look at how MySQL extracts intervals from arbitrary WHERE clauses. The extraction process uses the Range Analyzer — a part of the MySQL optimizer that produces plans for ...Partitions that did not get into this set (that is, those that were pruned away) will not be accessed at all: this is how query execution is made ...
https://dev.mysql.com/doc/internals/en/optimizer-transpositions.html
MySQL supports transpositions (reversing the order of operands around a relational operator) for simple expressions only. In other words: WHERE - 5 = column1 becomes: WHERE column1 = -5 However, MySQL does not support transpositions where ...Thus: ...
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/rows-event.html
repeat rows until event-end Fields table_id (6) -- If the table id is 0x00ffffff it is a dummy event that should have the end of statement flag set that declares that all table maps can be freed. Note if the post_header_length in the ...
https://dev.mysql.com/doc/internals/en/start-event-v3.html
Payload 2 binlog-version string[50] mysql-server version 4 create timestamp Fields binlog-version (2) -- version of this binlog format. mysql-server version (string.fix_len) -- [len=50] version of the MySQL Server that created the binlog.
https://dev.mysql.com/doc/internals/en/strings-directory.html
On the other hand, some of the files are MySQL additions or improvements. Often the MySQL changes are attempts to optimize the standard libraries. Many of the files in this subdirectory are equivalent to well-known functions that appear in most C ...
https://dev.mysql.com/doc/internals/en/support-files-directory.html
The files here are for building ("making") MySQL given a package manager, compiler, linker, and other build tools. They include example my.cnf files one can use as a default setup for MySQL. The support files provide instructions and switches for ...
https://dev.mysql.com/doc/internals/en/vc-plus-plus-files-directory.html
VC++Files includes a complete environment to compile MySQL with the VC++ compiler. The same applies for almost all of VC++Files's subdirectories (bdb, client, isam, libmysql, etc.). We are trying to keep to the MySQL standard source layout and ...To ...
https://dev.mysql.com/doc/internals/en/zlib-directory.html
On Unix, MySQL uses the system libgz.a library for this purpose. Zlib --- which presumably stands for "Zip Library" --- is not a MySQL package. zlib is a data compression library used to support the compressed protocol and the COMPRESS/UNCOMPRESS ...
https://dev.mysql.com/doc/ndbapi/en/ch04s03s05s01.html
com.mysql.clusterj.Session.<T>releaseCache(T, java.lang.Class<?>) com.mysql.clusterj.Session.closeCache(boolean) com.mysql.clusterj.Session.closeCache() ...