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https://dev.mysql.com/doc/refman/5.7/en/replication-gtids-concepts.html
The MySQL system table mysql.gtid_executed is used to preserve the assigned GTIDs of all the transactions applied on a MySQL server, except those that are stored in a currently active binary log file. The GTID for a transaction is shown in the ... A ...
https://dev.mysql.com/doc/refman/5.7/en/federated-create.html
Alternatively, make a note of the table definition of an existing table, perhaps using the SHOW CREATE TABLE statement. To create a FEDERATED table you should follow these steps: Create the table on the remote server. Create the table on the local ...The optimization occurs because the query sent to the remote server includes the contents of the WHERE clause, and is sent to the remote server and subsequently executed ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-lock-waits-table.html
The INNODB_LOCK_WAITS table contains one or more rows for each blocked InnoDB transaction, indicating the lock it has requested and any locks that are blocking that request. Note This table is deprecated as of MySQL 5.7.14 and is removed in MySQL ...REQUESTED_LOCK_ID The ID of the lock for which a transaction is ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-foreign-cols-table.html
The INNODB_SYS_FOREIGN_COLS table provides status information about the columns of InnoDB foreign keys, equivalent to the information from the SYS_FOREIGN_COLS table in the InnoDB data dictionary. For related usage information and examples, see ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-foreign-table.html
The INNODB_SYS_FOREIGN table provides metadata about InnoDB foreign keys, equivalent to the information from the SYS_FOREIGN table in the InnoDB data dictionary. For related usage information and examples, see Section 14.16.3, “InnoDB ...TYPE A ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-status-table.html
Note The value of the show_compatibility_56 system variable affects the information available from the tables described here. Note Information available from the tables described here is also available from the Performance Schema. The ...For ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-triggers-table.html
To see information about a table's triggers, you must have the TRIGGER privilege for the table. The TRIGGERS table has these columns: TRIGGER_CATALOG The name of the catalog to which the trigger belongs. This is the type of operation on the ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-variables-table.html
Note The value of the show_compatibility_56 system variable affects the information available from the tables described here. Note Information available from the tables described here is also available from the Performance Schema. The ...For ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-mutex-instances-table.html
The mutex_instances table lists all the mutexes seen by the Performance Schema while the server executes. The mutex_instances table has these columns: NAME The instrument name associated with the mutex. The setup_instruments table lists the name of ...A mutex is a synchronization mechanism used in the code to enforce that only one thread at a given time can have access to some common ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-objects-summary-global-by-type-table.html
The Performance Schema maintains the objects_summary_global_by_type table for aggregating object wait events. row *************************** OBJECT_TYPE: TABLE OBJECT_SCHEMA: test OBJECT_NAME: t COUNT_STAR: 3 SUM_TIMER_WAIT: 263126976 ...Example ...