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https://dev.mysql.com/doc/refman/5.7/en/create-table-secondary-indexes.html
A secondary index may be created on one or more virtual columns or on a combination of virtual columns and regular columns or stored generated columns. When a secondary index is created on a virtual generated column, generated column values are ...A ...
https://dev.mysql.com/doc/refman/5.7/en/document-store-setting-up.html
mysqlxsys@localhost User Account Installing the X Plugin creates a mysqlxsys@localhost user account. If, for some reason, creating the user account fails, the X Plugin installation fails, too. Here is an explanation on what the mysqlxsys@localhost ...The mysqlxsys@localhost account is used by the X Plugin for authentication of external users against the MySQL account system and for killing sessions when requested by a privileged ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-security-mysql-security-procedures.html
You should also delete the anonymous user account that is installed by default. First and foremost, you should always run a MySQL Server as the mysql operating system user; this is no different from running MySQL in a standard (non-Cluster) ... In ...
https://dev.mysql.com/doc/refman/5.7/en/keyring-functions-general-purpose.html
(This constraint rules out the use of the keyring functions for manipulation of instance-wide keys, such as those created by InnoDB to support tablespace encryption.) To enable multiple users to perform operations on the same key, “wrapper” ...A ... MySQL Server supports a keyring service that enables internal server components and plugins to store sensitive information securely for later ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-upgrade.html
An error occurs if a sys schema exists but has no version view, on the assumption that its absence indicates a user-created schema: A sys schema exists with no sys.version view. If you have a user created sys schema, this must be renamed for the ...
https://dev.mysql.com/doc/refman/5.7/en/sys-create-synonym-db.html
Given a schema name, this procedure creates a synonym schema containing views that refer to all the tables and views in the original schema. This can be used, for example, to create a shorter name by which to refer to a schema with a long name ...
https://dev.mysql.com/doc/refman/5.7/en/error-creating-innodb.html
Initialization Problems If something goes wrong when InnoDB attempts to initialize its tablespace or its log files, delete all files created by InnoDB: all ibdata files and all ib_logfile files. If you already created some InnoDB tables, also delete ... The troubleshooting steps for InnoDB I/O problems depend on when the problem occurs: during startup of the MySQL server, or during normal operations when a DML or DDL statement fails due to problems at the file system ...
https://dev.mysql.com/doc/refman/5.7/en/gis-mysql-specific-functions.html
MySQL provides a set of useful nonstandard functions for creating geometry values. GeometryCollection() with no arguments is permitted as a way to create an empty geometry. The functions described in this section are MySQL extensions to the OpenGIS ...
https://dev.mysql.com/doc/refman/5.7/en/making-windows-dumps.html
The PDB file contains more detailed information about mysqld and other tools that enables more detailed trace and dump files to be created. Program Database files (with suffix pdb) are included in the ZIP Archive Debug Binaries & Test Suite ...
https://dev.mysql.com/doc/refman/5.7/en/gis-wkb-functions.html
These functions also accept geometry objects as returned by the functions in Section 12.16.5, “MySQL-Specific Functions That Create Geometry Values”. These functions take as arguments a BLOB containing a Well-Known Binary (WKB) representation ...