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https://dev.mysql.com/doc/refman/8.0/en/gtid-functions.html
timeout must be greater than or equal to 0; when running in strict SQL mode, a negative timeout value is immediately rejected with an error (ER_WRONG_ARGUMENTS); otherwise the function returns NULL, and raises a warning. As such, the GTID sets must ... The functions described in this section are used with GTID-based ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-keywords-table.html
Prior to MySQL 8.0.13, selecting from the KEYWORDS table with no default database selected produced an error. This file can be found in the sql directory under the build directory. This file may be useful for applications that require a static ...
https://dev.mysql.com/doc/refman/8.0/en/uninstall-component.html
If any error occurs, the statement fails and has no effect. A component provides services that are available to the server and other components; see Section 7.5, “MySQL Components”. It requires the DELETE privilege for the mysql.component system ...
https://dev.mysql.com/doc/refman/8.0/en/ignoring-user.html
If you get the following error, it means that when mysqld was started or when it reloaded the grant tables, it found an account in the user table that had an invalid password. Found wrong password for user 'some_user'@'some_host'; ignoring user As ...
https://dev.mysql.com/doc/refman/8.0/en/constraint-primary-key.html
Normally, errors occur for data-change statements (such as INSERT or UPDATE) that would violate primary-key, unique-key, or foreign-key constraints. If you are using a transactional storage engine such as InnoDB, MySQL automatically rolls back the ...If you use it, MySQL ignores primary-key or unique-key violations and continues processing with the next ...
https://dev.mysql.com/doc/refman/8.0/en/table-corruption.html
When the server detects MyISAM table corruption, it writes additional information to the error log, such as the name and line number of the source file, and the list of threads accessing the table. If this happens, MySQL writes an entry in the ...
https://dev.mysql.com/doc/refman/8.0/en/collation-diagnostics.html
The MySQL server generates diagnostics when it finds problems while parsing the Index.xml file: Unknown tags are written to the error log. For example, the following message results if a collation definition contains a <aaa> tag: [Warning] Buffered ...In other cases, when a collation description is generally correct but contains some unknown tags, the collation is initialized and is available for ...
https://dev.mysql.com/doc/refman/8.0/en/adding-collation-unicode-uca.html
This section describes how to add a UCA collation for a Unicode character set by writing the <collation> element within a <charset> character set description in the MySQL Index.xml file. It uses a subset of the Locale Data Markup Language (LDML) ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-elements.html
A set of functions enables manipulation of filtering definitions that control logging behavior, the encryption password, and log file reading. Tables in the mysql system database provide persistent storage of filter and user account data, unless you ... MySQL Enterprise Audit is based on the audit log plugin and related elements: A server-side plugin named audit_log examines auditable events and determines whether to write them to the audit ...
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-sets.html
A combined character is considered different from the same character written with a single unicode character in string comparisons, and the two characters are considered to have a different length (for example, as returned by the CHAR_LENGTH() ...