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https://dev.mysql.com/doc/refman/8.0/en/innodb-recovery.html
Doing so may eliminate errors that appeared to be database page corruption. If a hardware failure or severe system error corrupted InnoDB data, MySQL might refuse to start. To achieve point-in-time recovery after restoring a backup, you can apply ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-undo-tablespaces.html
An error message is reported at startup if an undo tablespace known to the data dictionary is not found. Attempting to drop an undo tablespace that is not empty returns an error. Undo tablespaces contain undo logs, which are collections of records ...
https://dev.mysql.com/doc/refman/8.0/en/internal-temporary-tables.html
If internal_tmp_disk_storage_engine=MYISAM, an error occurs for any attempt to materialize a CTE using an on-disk temporary table. When using internal_tmp_disk_storage_engine=INNODB, queries that generate on-disk internal temporary tables that ...
https://dev.mysql.com/doc/refman/8.0/en/invisible-columns.html
For new or modified rows, violation of a CHECK constraint on an invisible column produces an error. An invisible column is normally hidden to queries, but can be accessed if explicitly referenced. As an illustration of when invisible columns may be ...
https://dev.mysql.com/doc/refman/8.0/en/invisible-indexes.html
If an index made invisible actually is needed or used by the optimizer, there are several ways to notice the effect of its absence on queries for the table: Errors occur for queries that include index hints that refer to the invisible index. MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-functions-plugin-specific.html
Return value: Returns 1 for success, or NULL and an error for failure. Return value: Returns 1 for success, or NULL and an error for failure. For each keyring plugin-specific function, this section describes its purpose, calling sequence, and ...
https://dev.mysql.com/doc/refman/8.0/en/large-page-support.html
In the event sysctl returns an error relating to the file name, check the name of the corresponding file in /proc/sys/vm and use that instead. If InnoDB cannot do this, it falls back to use of traditional memory and writes a warning to the error ...
https://dev.mysql.com/doc/refman/8.0/en/linux-installation-yum-repo.html
A password for the superuser is set and stored in the error log file. Before You Start As a popular, open-source software, MySQL, in its original or re-packaged form, is widely installed on many systems from various sources, including different ...
https://dev.mysql.com/doc/refman/8.0/en/load-data-local-security.html
The LOAD DATA statement loads a data file into a table. The statement can load a file located on the server host, or, if the LOCAL keyword is specified, on the client host. In theory, a patched server could tell the client program to transfer a ...
https://dev.mysql.com/doc/refman/8.0/en/log-destinations.html
MySQL Server provides flexible control over the destination of output written to the general query log and the slow query log, if those logs are enabled. Possible destinations for log entries are log files or the general_log and slow_log tables in ...