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https://dev.mysql.com/doc/refman/9.7/en/myisampack.html
When the table is used later, the server reads into memory the information needed to decompress columns. This results in much better performance when accessing individual rows, because you only have to uncompress exactly one row. MySQL uses mmap() ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-replication-conflict-resolution.html
Requirements Source Column Control Conflict Resolution Control Conflict Resolution Functions Conflict Resolution Exceptions Table Conflict Detection Status Variables Examples When using a replication setup involving multiple sources (including ...
https://dev.mysql.com/doc/refman/9.7/en/option-files.html
Most MySQL programs can read startup options from option files (sometimes called configuration files). Option files provide a convenient way to specify commonly used options so that they need not be entered on the command line each time you run a ...
https://dev.mysql.com/doc/refman/9.7/en/precision-math-decimal-characteristics.html
This section discusses the characteristics of the DECIMAL data type (and its synonyms), with particular regard to the following topics: Maximum number of digits Storage format Storage requirements The nonstandard MySQL extension to the upper range ...
https://dev.mysql.com/doc/refman/9.7/en/replication-features-memory.html
When a replication source server shuts down and restarts, its MEMORY tables become empty. To replicate this effect to replicas, the first time that the source uses a given MEMORY table after startup, it logs an event that notifies replicas that the ...
https://dev.mysql.com/doc/refman/9.7/en/replication-options-binary-log.html
Startup Options Used with Binary Logging System Variables Used with Binary Logging You can use the mysqld options and system variables that are described in this section to affect the operation of the binary log as well as to control which ...
https://dev.mysql.com/doc/refman/9.7/en/replication-options-replica.html
This section explains the server options and system variables that apply to replica servers and contains the following: Startup Options for Replica Servers System Variables Used on Replica Servers Specify the options either on the command line or ...
https://dev.mysql.com/doc/refman/9.7/en/sql-mode.html
The MySQL server can operate in different SQL modes, and can apply these modes differently for different clients, depending on the value of the sql_mode system variable. DBAs can set the global SQL mode to match site server operating requirements, ...
https://dev.mysql.com/doc/refman/9.7/en/timestamp-lookups.html
Temporal values are stored in TIMESTAMP columns as UTC values, and values inserted into and retrieved from TIMESTAMP columns are converted between the session time zone and UTC. (This is the same type of conversion performed by the CONVERT_TZ() ...
https://dev.mysql.com/doc/refman/9.7/en/using-systemd.html
If you install MySQL from a source distribution on a platform that uses systemd, obtain systemd support for MySQL by configuring the distribution using the -DWITH_SYSTEMD=1 CMake option. The following discussion covers these topics: Overview of ...