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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-performance-timers-table.html
The performance_timers table has these columns: TIMER_NAME The name by which to refer to the timer when configuring the setup_timers table. The rows that do not contain NULL indicate which timers you can use in setup_timers. For an explanation of ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-pre-filtering.html
Generally, the effect is to reset the summary columns to 0 or NULL, not to remove rows. Pre-filtering is done by the Performance Schema and has a global effect that applies to all users. Pre-filtering can be applied to either the producer or ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-query-profiling.html
Each stage event record has a NESTING_EVENT_ID column that contains the EVENT_ID of the parent statement. The following example demonstrates how to use Performance Schema statement events and stage events to retrieve data comparable to profiling ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-group-member-stats-table.html
The replication_group_member_stats table has these columns: CHANNEL_NAME Name of the Group Replication channel. This table shows statistical information for MySQL Group Replication members. This has a different value for each member in the group.
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-group-members-table.html
The replication_group_members table has these columns: CHANNEL_NAME Name of the Group Replication channel. This table shows network and status information for replication group members. The network addresses shown are the addresses used to connect ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-rwlock-instances-table.html
The rwlock_instances table has these columns: NAME The instrument name associated with the lock. The rwlock_instances table lists all the rwlock (read write lock) instances seen by the Performance Schema while the server executes. An rwlock is a ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-session-account-connect-attrs-table.html
The session_account_connect_attrs table has these columns: PROCESSLIST_ID The connection identifier for the session. Application programs can provide key-value connection attributes to be passed to the server at connect time. For descriptions of ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-session-connect-attrs-table.html
The session_connect_attrs table has these columns: PROCESSLIST_ID The connection identifier for the session. Application programs can provide key-value connection attributes to be passed to the server at connect time. For descriptions of common ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-setup-tables.html
For this reason, some columns in these tables can be changed if you have the UPDATE privilege. The setup tables provide information about the current instrumentation and enable the monitoring configuration to be changed. The use of tables rather ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-table-handles-table.html
The Performance Schema exposes table lock information through the table_handles table to show the table locks currently in effect for each opened table handle. This information shows which table handles the server has open, how they are locked, and ...