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https://dev.mysql.com/doc/refman/5.7/en/fulltext-restrictions.html
The exception is that for Unicode, the utf8 character set can be used, but not the ucs2 character set. Full-text searches are supported for InnoDB and MyISAM tables only. Although FULLTEXT indexes on ucs2 columns cannot be used, you can perform IN ...Ideographic languages such as Chinese and Japanese do not have word ...
https://dev.mysql.com/doc/refman/5.7/en/gone-away.html
If you need big queries (for example, if you are working with big BLOB columns), you can increase the query limit by setting the server's max_allowed_packet variable, which has a default value of 4MB. More information on setting the packet size is ...The most common reason for the MySQL server has gone away error is that the server timed out and closed the ...
https://dev.mysql.com/doc/refman/5.7/en/installing-development-tree.html
Prerequisites for Installing from Development Source Setting Up a MySQL Git Repository Prerequisites for Installing from Development Source To install MySQL from a development source tree, your system must satisfy the tool requirements listed at ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-list.html
The chief difference between the two types of partitioning is that, in list partitioning, each partition is defined and selected based on the membership of a column value in one of a set of value lists, rather than in one of a set of contiguous ...
https://dev.mysql.com/doc/refman/5.7/en/string-comparison-functions.html
Normally, if any expression in a string comparison is case-sensitive, the comparison is performed in case-sensitive fashion. For more information about that option, see Section 4.5.1, “mysql — The MySQL Command-Line Client”. For example, it ...
https://dev.mysql.com/doc/refman/5.7/en/using-gdb-on-mysqld.html
In this case, you should set the following environment variable in the shell before starting gdb: LD_ASSUME_KERNEL=2.4.1 export LD_ASSUME_KERNEL When running mysqld under gdb, you should disable the stack trace with --skip-stack-trace to be able to ... On most systems you can also start mysqld from gdb to get more information if mysqld ...With some older gdb ...
https://dev.mysql.com/doc/refman/5.7/en/x-plugin-options-system-variables.html
If you want to set a different default for the X Plugin socket file at compile time, use the MYSQLX_UNIX_ADDR compile option. The MYSQLX_UNIX_PORT environment variable can also be used to set a default for the X Plugin socket file at server startup ... To control activation of X Plugin, use this option: --mysqlx[=value] Command-Line Format --mysqlx[=value] Type Enumeration Default Value ON Valid Values ONOFFFORCEFORCE_PLUS_PERMANENT This option controls how the server loads X Plugin at ...
https://dev.mysql.com/doc/refman/5.7/en/error-log-unix.html
Note It is common for Yum or APT package installations to configure an error log file location under /var/log with an option like log-error=/var/log/mysqld.log in a server configuration file. If the server writes the error log to the console, it ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-data-manipulation-statements.html
As there are no primary servers (sources) for any particular data set, every server in the group is allowed to execute transactions at any time, even transactions that change state (RW transactions). If they receive it, then they all receive it in ...Any server may execute a transaction without any a priori ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-deploying-in-multi-primary-or-single-primary-mode.html
These checks can be deactivated by setting the option group_replication_enforce_update_everywhere_checks to FALSE. It is not possible to have members of the group deployed in different modes, for example one configured in multi-primary mode while ...