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https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-tables.html
For related information and examples, see Section 17.15, “InnoDB INFORMATION_SCHEMA Tables”. INFORMATION_SCHEMA InnoDB tables can be used to monitor ongoing InnoDB activity, to detect inefficiencies before they turn into issues, or to ...As your ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-setup-metrics-table.html
The setup_metrics table lists the available metrics: mysql> select * from performance_schema.setup_metrics\G *************************** 34. row *************************** NAME: undo_tablespaces_active METER: mysql.inno METRIC_TYPE: ASYNC GAUGE ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-setup-tables.html
The setup tables provide information about the current instrumentation and enable the monitoring configuration to be changed. For this reason, some columns in these tables can be changed if you have the UPDATE privilege. The use of tables rather ...
https://dev.mysql.com/doc/internals/en/closing-a-table.html
When the MySQL server is finished with a table, it will call the [custom-engine.html#custom-engine-api-reference-close close()] method to close file pointers and release any other resources.
https://dev.mysql.com/doc/heatwave/en/mys-hw-rpd-exec-stats-table.html
The rpd_exec_stats table stores query execution statistics produced by MySQL HeatWave nodes in JSON format. One row of execution statistics is stored for each node that participates in the query. For MySQL HeatWave AutoML routines that include ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-rpd-query-stats-table.html
The rpd_query_stats table stores query compilation and execution statistics produced by the MySQL HeatWave plugin in JSON format. The rpd_query_stats table has these columns: CONNECTION_ID The ID of the connection. For MySQL HeatWave AutoML ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-column-statistics-table.html
The COLUMN_STATISTICS table provides access to histogram statistics for column values. For information about histogram statistics, see Section 10.9.6, “Optimizer Statistics”, and Section 15.7.3.1, “ANALYZE TABLE Statement”. The ...You can ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-keywords-table.html
The KEYWORDS table lists the words considered keywords by MySQL and, for each one, indicates whether it is reserved. This table provides applications a runtime source of MySQL keyword information. Reserved keywords may require special treatment in ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-parameters-table.html
The PARAMETERS table provides information about parameters for stored routines (stored procedures and stored functions), and about return values for stored functions. The PARAMETERS table does not include built-in (native) functions or loadable ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-role-column-grants-table.html
The ROLE_COLUMN_GRANTS table provides information about the column privileges for roles that are available to or granted by the currently enabled roles. The ROLE_COLUMN_GRANTS table has these columns: GRANTOR The user name part of the account that ...GRANTOR_HOST The host name part of the account that granted the ...