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https://dev.mysql.com/doc/refman/5.7/en/thread-pool-information-schema-tables.html
They provide information about thread pool operation: TP_THREAD_GROUP_STATE: Information about thread pool thread group states TP_THREAD_GROUP_STATS: Thread group statistics TP_THREAD_STATE: Information about thread pool thread states Rows in these ... The following sections describe the INFORMATION_SCHEMA tables associated with the thread pool plugin (see Section 5.5.3, “MySQL Enterprise Thread ...
https://dev.mysql.com/doc/refman/5.7/en/aggregate-functions.html
They are often used with a GROUP BY clause to group values into subsets. If you use an aggregate function in a statement containing no GROUP BY clause, it is equivalent to grouping on all rows. For more information, see Section 12.19.3, “MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/create-tablespace.html
For example, you cannot have a tablespace and a log file group with the same name, or a tablespace and a data file with the same name. A log file group of one or more UNDO log files must be assigned to the tablespace to be created with the USE ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-nutshell.html
If older client software cannot be upgraded immediately, the new named_pipe_full_access_group system variable can be used to give a Windows group the necessary permissions to open a named pipe connection. Implementation for the ONLY_FULL_GROUP_BY ...
https://dev.mysql.com/doc/refman/5.7/en/drop-tablespace.html
mysql> CREATE TABLESPACE myts -> ADD DATAFILE 'mydata-1.dat' -> USE LOGFILE GROUP mylg -> ENGINE=NDB; You must remove all data files from the tablespace using ALTER TABLESPACE, as shown here, before it can be dropped: mysql> ALTER TABLESPACE myts -> ... DROP TABLESPACE tablespace_name [ENGINE [=] engine_name] This statement drops a tablespace that was previously created using CREATE ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-innodb-cluster-introduction.html
MySQL Server, and Group Replication, which enables a set of MySQL instances to provide high-availability. InnoDB Cluster provides an alternative, easy to use programmatic way to work with Group Replication. The following diagram shows an overview of ... This chapter introduces MySQL InnoDB Cluster, which combines MySQL technologies to enable you to deploy and administer a complete integrated high availability solution for ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-table-descriptions.html
Tables in the performance_schema database can be grouped as follows: Setup tables. These tables contain information aggregated over groups of events, including those that have been discarded from the history tables. These do not fall into any of ...
https://dev.mysql.com/doc/refman/5.7/en/counting-rows.html
The use of COUNT() in conjunction with GROUP BY is useful for characterizing your data under various groupings. Counting the total number of animals you have is the same question as “How many rows are in the pet table?” because there is one ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-config-editor.html
The unobfuscated format of the .mylogin.cnf login path file consists of option groups, similar to other option files. Each option group in .mylogin.cnf is called a “login path,” which is a group that permits only certain options: host, user, ...
https://dev.mysql.com/doc/refman/5.7/en/change-replication-filter.html
Note Replication filters cannot be set on a MySQL server instance that is configured for Group Replication, because filtering transactions on some servers would make the group unable to reach agreement on a consistent state. Filters set using this ...