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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-file-summary-tables.html
The Performance Schema maintains file I/O summary tables that aggregate information about I/O operations. Each file I/O summary table has one or more grouping columns to indicate how the table aggregates events. Event names refer to names of event ...Example file I/O event summary information: mysql> SELECT * FROM performance_schema.file_summary_by_event_name\G ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-dict-obj-tree.html
This means that you must know the name of any tablespace or log file group associated with a given table, or obtain this information from SHOW CREATE TABLE and then querying INFORMATION_SCHEMA.FILES, or similar means as shown here: mysql> SHOW ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-buffer-pool-stats-table.html
The INNODB_BUFFER_POOL_STATS table provides much of the same buffer pool information provided in SHOW ENGINE INNODB STATUS output. For related usage information and examples, see Section 17.15.5, “InnoDB INFORMATION_SCHEMA Buffer Pool Tables”.
https://dev.mysql.com/doc/refman/8.0/en/information-schema-user-attributes-table.html
The USER_ATTRIBUTES table (available as of MySQL 8.0.21) provides information about user comments and user attributes. The USER_ATTRIBUTES table has these columns: USER The user name portion of the account to which the ATTRIBUTE column value ...
https://dev.mysql.com/doc/refman/8.0/en/cannot-find-table.html
Even for file systems that are not case-sensitive, such as on Windows, all references to a given table within a query must use the same lettercase. You can check which tables are in the default database with SHOW TABLES.
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-foreign-cols-table.html
The INNODB_FOREIGN_COLS table provides status information about InnoDB foreign key columns. For related usage information and examples, see Section 17.15.3, “InnoDB INFORMATION_SCHEMA Schema Object Tables”. The INNODB_FOREIGN_COLS table has ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-foreign-table.html
For related usage information and examples, see Section 17.15.3, “InnoDB INFORMATION_SCHEMA Schema Object Tables”. The INNODB_FOREIGN table has these columns: ID The name (not a numeric value) of the foreign key index, preceded by the schema ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-metrics-table.html
The INNODB_METRICS table provides a wide variety of InnoDB performance information, complementing the specific focus areas of the Performance Schema tables for InnoDB. The INNODB_METRICS table has these columns: NAME A unique name for the counter.
https://dev.mysql.com/doc/refman/8.0/en/information-schema-st-geometry-columns-table.html
The ST_GEOMETRY_COLUMNS table provides information about table columns that store spatial data. This table is based on the SQL/MM (ISO/IEC 13249-3) standard, with extensions as noted. MySQL implements ST_GEOMETRY_COLUMNS as a view on the ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-firewall-group-allowlist-table.html
The firewall_group_allowlist table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It is used in conjunction with the mysql.firewall_group_allowlist system table that provides persistent storage of firewall data; see ...