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https://dev.mysql.com/doc/refman/8.4/en/error-log-components.html
The following sections describe individual log components, grouped by component type: Filter Error Log Components Sink Error Log Components Component descriptions include these types of information: The component name and intended purpose. This ...
https://dev.mysql.com/doc/refman/8.4/en/faqs-general.html
On Windows, there is currently a limit to the number of (logical) processors that mysqld can use: a single processor group, which is limited to a maximum of 64 logical processors. Why did MySQL version numbering skip versions 6 and 7 and go straight ...
https://dev.mysql.com/doc/refman/8.4/en/file-permissions.html
For example, to give group access to all new directories, start mysqld_safe as follows: UMASK_DIR=504 # = 770 in octal export UMASK_DIR mysqld_safe & For additional details, see Section 6.9, “Environment Variables”. If you have problems with ...
https://dev.mysql.com/doc/refman/8.4/en/firewall-installation.html
Note To use MySQL Enterprise Firewall in the context of source/replica replication, Group Replication, or InnoDB Cluster, you must prepare the replica nodes prior to running the installation script on the source node. MySQL Enterprise Firewall ...
https://dev.mysql.com/doc/refman/8.4/en/general-tablespaces.html
The unique file name is a 128 bit UUID formatted into five groups of hexadecimal numbers separated by dashes (aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee). A general tablespace is a shared InnoDB tablespace that is created using CREATE TABLESPACE syntax.
https://dev.mysql.com/doc/refman/8.4/en/generated-column-index-optimizations.html
This occurs if the WHERE, ORDER BY, or GROUP BY clause refers to an expression that matches the definition of some indexed generated column. For example: CREATE TABLE t1 (f1 INT, gc INT AS (f1 + 1) STORED, INDEX (gc)); The generated column, gc, is ...
https://dev.mysql.com/doc/refman/8.4/en/gis-property-functions.html
Each function that belongs to this group takes a geometry value as its argument and returns some quantitative or qualitative property of the geometry. Such functions return NULL if the argument is of an incorrect geometry type. For example, the ...
https://dev.mysql.com/doc/refman/8.4/en/help.html
HELP 'search_string' The HELP statement returns online information from the MySQL Reference Manual. Its proper operation requires that the help tables in the mysql database be initialized with help topic information (see Section 7.1.17, ...
https://dev.mysql.com/doc/refman/8.4/en/identifier-mapping.html
The following names are reserved and appended with @@@ if used in schema or table names: CON PRN AUX NUL COM1 through COM9 LPT1 through LPT9 CLOCK$ is also a member of this group of reserved names, but is not appended with @@@, but @0024 instead.
https://dev.mysql.com/doc/refman/8.4/en/identifiers.html
Certain objects within MySQL, including database, table, index, column, alias, view, stored procedure, partition, tablespace, resource group and other object names are known as identifiers. Section 11.2.1, “Identifier Length Limits”, indicates ...