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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/loading-tables.html
You could create a text file pet.txt containing one record per line, with values separated by tabs, and given in the order in which the columns were listed in the CREATE TABLE statement. In its simplest form, you supply values for each column, in ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-clone-tables.html
Note The Performance Schema tables described here are available as of MySQL 8.0.17. The following sections describe the Performance Schema tables associated with the clone plugin (see Section 7.6.7, “The Clone Plugin”). The Performance Schema ...clone_status: status information about the current or last executed cloning ...
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/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 ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-firewall-groups-table.html
The firewall_groups table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It is used in conjunction with the mysql.firewall_groups system table that provides persistent storage of firewall data; see MySQL Enterprise ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-firewall-membership-table.html
The firewall_membership table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It is used in conjunction with the mysql.firewall_membership system table that provides persistent storage of firewall data; see MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-list.html
In MySQL 8.0, all rows relating to employees working at stores in that region can be deleted with the query ALTER TABLE employees TRUNCATE PARTITION pWest, which can be executed much more efficiently than the equivalent DELETE statement DELETE FROM ...For more detailed syntactical information, see Section 15.1.20, “CREATE TABLE ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-locks-per-fragment.html
The locks_per_fragment table provides information about counts of lock claim requests, and the outcomes of these requests on a per-fragment basis, serving as a companion table to operations_per_fragment and memory_per_fragment. This table also ...