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29.12.11.3 The replication_applier_status Table

https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-applier-status-table.html

This table shows the current general transaction execution status on the replica. The table provides information about general aspects of transaction applier status that are not specific to any thread involved. Thread-specific status information is ...

29.12.11.15 The replication_group_member_stats Table

https://dev.mysql.com/doc/refman/8.0/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 VIEW_ID Current view identifier for this group. This has a different value for each member in the group. This also serves as a key because ...

29.12.9.1 The session_account_connect_attrs Table

https://dev.mysql.com/doc/refman/8.0/en/performance-schema-session-account-connect-attrs-table.html

Application programs can provide key-value connection attributes to be passed to the server at connect time. For descriptions of common attributes, see Section 29.12.9, “Performance Schema Connection Attribute Tables”. The ...

29.12.9.2 The session_connect_attrs Table

https://dev.mysql.com/doc/refman/8.0/en/performance-schema-session-connect-attrs-table.html

29.12.20 Performance Schema Summary Tables

https://dev.mysql.com/doc/refman/8.0/en/performance-schema-summary-tables.html

Summary tables provide aggregated information for terminated events over time. That might be useful, for example, after you have made a runtime configuration change. The tables in this group summarize event data in different ways. Each summary ...

8.2.13 When Privilege Changes Take Effect

https://dev.mysql.com/doc/refman/8.0/en/privilege-changes.html

If the mysqld server is started without the --skip-grant-tables option, it reads all grant table contents into memory during its startup sequence. This can be done by issuing a FLUSH PRIVILEGES statement or by executing a mysqladmin ...The ...

15.3.4 SAVEPOINT, ROLLBACK TO SAVEPOINT, and RELEASE SAVEPOINT Statements

https://dev.mysql.com/doc/refman/8.0/en/savepoint.html

In this case, the row lock is released in the undo.) Savepoints that were set at a later time than the named savepoint are deleted. SAVEPOINT identifier ROLLBACK [WORK] TO [SAVEPOINT] identifier RELEASE SAVEPOINT identifier InnoDB supports the SQL ...

15.7.7.2 SHOW BINLOG EVENTS Statement

https://dev.mysql.com/doc/refman/8.0/en/show-binlog-events.html

Note Issuing a SHOW BINLOG EVENTS with no LIMIT clause could start a very time- and resource-consuming process because the server returns to the client the complete contents of the binary log (which includes all statements executed by the server ...

15.7.7.32 SHOW RELAYLOG EVENTS Statement

https://dev.mysql.com/doc/refman/8.0/en/show-relaylog-events.html

Note Issuing a SHOW RELAYLOG EVENTS with no LIMIT clause could start a very time- and resource-consuming process because the server returns to the client the complete contents of the relay log (including all statements modifying data that have been ... SHOW RELAYLOG EVENTS [IN 'log_name'] [FROM pos] [LIMIT [offset,] row_count] [channel_option] channel_option: FOR CHANNEL channel Shows the events in the relay log of a ...

30.4.3.15 The latest_file_io and x$latest_file_io Views

https://dev.mysql.com/doc/refman/8.0/en/sys-latest-file-io.html

These views summarize file I/O activity, grouped by file and thread. The latest_file_io and x$latest_file_io views have these columns: thread For foreground threads, the account associated with the thread (and port number for TCP/IP connections).

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