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https://dev.mysql.com/doc/refman/8.0/en/rewriter-query-rewrite-plugin.html
The Rewriter plugin uses a database named query_rewrite containing a table named rewrite_rules. The table provides persistent storage for the rules that the plugin uses to decide whether to rewrite statements. Users communicate with the plugin by ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-prerequisites.html
Before using the sys schema, the prerequisites described in this section must be satisfied. Because the sys schema provides an alternative means of accessing the Performance Schema, the Performance Schema must be enabled for the sys schema to work.
https://dev.mysql.com/doc/refman/8.0/en/unix-signal-response.html
SIGHUP causes the server to reload the grant tables and to flush tables, logs, the thread cache, and the host cache. On Unix and Unix-like systems, a process can be the recipient of signals sent to it by the root system account or the system ...
https://dev.mysql.com/doc/refman/8.0/en/account-locking.html
MySQL supports locking and unlocking user accounts using the ACCOUNT LOCK and ACCOUNT UNLOCK clauses for the CREATE USER and ALTER USER statements: When used with CREATE USER, these clauses specify the initial locking state for a new account. In ...
https://dev.mysql.com/doc/refman/8.0/en/events-overview.html
When you create an event, you are creating a named database object containing one or more SQL statements to be executed at one or more regular intervals, beginning and ending at a specific date and time. Whereas a trigger is a database object whose ... MySQL Events are tasks that run according to a ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-logging-configuration.html
If compression or encryption are enabled, the effective file name (the name actually used to create the log file) differs from the configured file name because it has additional suffixes: If compression is enabled, the plugin adds a suffix of .gz.
https://dev.mysql.com/doc/refman/8.0/en/charset-collation-implementations.html
MySQL implements several types of collations: Simple collations for 8-bit character sets This kind of collation is implemented using an array of 256 weights that defines a one-to-one mapping from character codes to weights. It is a case-insensitive ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-local.html
Note A local cloning operation does not support cloning of user-created tables or tablespaces that reside outside of the data directory. All other user-created InnoDB tables and tablespaces, the InnoDB system tablespace, redo logs, and undo ...The ...The BACKUP_ADMIN privilege is required to execute CLONE LOCAL DATA DIRECTORY ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-redo-log.html
During normal operations, the redo log encodes requests to change table data that result from SQL statements or low-level API calls. If the redo log files occupy less space than the specified value, dirty pages are flushed from the buffer pool to ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-error-reporter.html
ndb_error_reporter creates an archive from data node and management node log files that can be used to help diagnose bugs or other problems with a cluster. Options that can be used with ndb_error_reporter are shown in the following table. It is ...