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https://dev.mysql.com/doc/refman/5.7/en/alter-table-partition-operations.html
Partitioning-related clauses for ALTER TABLE can be used with partitioned tables for repartitioning, to add, drop, discard, import, merge, and split partitions, and to perform partitioning maintenance. Simply using a partition_options clause with ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-secure-socket-layer-support-ssl.html
Group communication connections as well as recovery connections, are secured using SSL. Configuring SSL for Group Replication Recovery Recovery is performed through a regular asynchronous replication connection. Once the donor is selected, the ...
https://dev.mysql.com/doc/refman/5.7/en/explain-output.html
The first condition is fulfilled when the query is implicitly grouped (contains an aggregate function but no GROUP BY clause). Consider the following implicitly grouped query: SELECT MIN(c1), MIN(c2) FROM t1; Suppose that MIN(c1) can be retrieved by ... The EXPLAIN statement provides information about how MySQL executes ...
https://dev.mysql.com/doc/refman/5.7/en/group-by-modifiers.html
The GROUP BY clause permits a WITH ROLLUP modifier that causes summary output to include extra rows that represent higher-level (that is, super-aggregate) summary operations. ROLLUP has a more complex effect when there are multiple GROUP BY columns. In this case, each time there is a change in value in any but the last grouping column, the query produces an extra super-aggregate summary ...
https://dev.mysql.com/doc/refman/5.7/en/example-maximum-column-group-row.html
Task: For each article, find the dealer or dealers with the most expensive price. Other possibilities for solving the problem are to use an uncorrelated subquery in the FROM clause or a LEFT JOIN.
https://dev.mysql.com/doc/refman/5.7/en/group-replication-plugin-architecture.html
MySQL Group Replication is a MySQL plugin and it builds on the existing MySQL replication infrastructure, taking advantage of features such as the binary log, row-based logging, and global transaction identifiers. The following figure presents a ...
https://dev.mysql.com/doc/refman/5.7/en/create-logfile-group.html
CREATE LOGFILE GROUP logfile_group ADD UNDOFILE 'undo_file' [INITIAL_SIZE [=] initial_size] [UNDO_BUFFER_SIZE [=] undo_buffer_size] [REDO_BUFFER_SIZE [=] redo_buffer_size] [NODEGROUP [=] nodegroup_id] [WAIT] [COMMENT [=] 'string'] ENGINE [=] ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-use-cases.html
Group Replication enables you to create fault-tolerant systems with redundancy by replicating the system state to a set of servers. Depending on the number of servers which fail the group might have degraded performance or scalability, but it is ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-deploying-locally.html
The most common way to deploy Group Replication is using multiple server instances, to provide high availability. It is also possible to deploy Group Replication locally, for example for testing purposes. Important Group Replication is usually ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-replication-group-members.html
The performance_schema.replication_group_members table is used for monitoring the status of the different server instances that are members of the group. The information in the table is updated whenever there is a view change, for example when the ...At that point, servers exchange some of their metadata to synchronize themselves and continue to cooperate ...