https://dev.mysql.com/optimizer-hints.html
The same is true if FORCE INDEX is changed to USE INDEX. One means of control over optimizer strategies is to set the optimizer_switch system variable (see Section 8.9.2, “Switchable Optimizations”). Changes to this variable affect execution of ...
https://dev.mysql.com/option-files.html
In an option file, you can have spaces around the = character, something that is not true on the command line. Most MySQL programs can read startup options from option files (sometimes called configuration files). Option files provide a convenient ...
https://dev.mysql.com/option-modifiers.html
The “enabled” form of the option may be specified in any of these ways: --column-names --enable-column-names --column-names=1 The values ON, TRUE, OFF, and FALSE are also recognized for boolean options (not case-sensitive). Some options are ...
https://dev.mysql.com/order-by-optimization.html
For example, this is true for a HASH index in a MEMORY table. This section describes when MySQL can use an index to satisfy an ORDER BY clause, the filesort operation used when an index cannot be used, and execution plan information available from ...
https://dev.mysql.com/pam-pluggable-authentication.html
Note PAM pluggable authentication is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition supports an authentication method that enables MySQL Server to use PAM (Pluggable Authentication Modules) to ...
https://dev.mysql.com/parameters-table.html
The return value is not a true parameter, so the row that describes it has these unique characteristics: The ORDINAL_POSITION value is 0. The PARAMETERS table provides information about parameters for stored routines (stored procedures and stored ...
https://dev.mysql.com/partitioning-columns-range.html
For example, when using a case-sensitive collation, 'and' sorts before 'Andersen', but when using a collation that is case-insensitive, the reverse is true. Range columns partitioning is similar to range partitioning, but enables you to define ...
https://dev.mysql.com/partitioning-limitations.html
More specifically, this means that the following two statements are true: No definition of an InnoDB table employing user-defined partitioning may contain foreign key references; no InnoDB table whose definition contains foreign key references may ... This section discusses current restrictions and limitations on MySQL partitioning ...
https://dev.mysql.com/partitioning-linear-hash.html
MySQL also supports linear hashing, which differs from regular hashing in that linear hashing utilizes a linear powers-of-two algorithm whereas regular hashing employs the modulus of the hashing function's value. We call this value V; it can be ...
https://dev.mysql.com/partitioning-management-exchange.html
Table nt contains no foreign key references, and no other table has any foreign keys that refer to nt. There are no rows in nt that lie outside the boundaries of the partition definition for p. To determine the row format of an InnoDB table, query ...
