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https://dev.mysql.com/doc/refman/8.0/en/replication-rules-channel-based-filters.html
Channel specific replication filters are particularly useful in a multi-source replication topology when the same database or table is present on multiple sources, and the replica is only required to replicate it from one source. Overview of ...
https://dev.mysql.com/doc/refman/8.0/en/select-into.html
SELECT id, data INTO @x, @y FROM test.t1 LIMIT 1; INTO var_list can also be used with a TABLE statement, subject to these restrictions: The number of variables must match the number of columns in the table. If the table contains more than one row, ...INTO form of SELECT enables a query result to be stored in variables or written to a file: SELECT ...
https://dev.mysql.com/doc/refman/8.0/en/thread-pool-installation.html
Thread Pool Installation as of MySQL 8.0.14 Thread Pool Installation Prior to MySQL 8.0.14 Thread Pool Installation as of MySQL 8.0.14 In MySQL 8.0.14 and higher, the thread pool monitoring tables are Performance Schema tables that are loaded and ...
https://dev.mysql.com/doc/refman/8.0/en/kill.html
ALTER TABLE operations that make a table copy check the kill flag periodically for each few copied rows read from the original table. Thread processlist identifiers can be determined from the ID column of the INFORMATION_SCHEMA PROCESSLIST table, ...
https://dev.mysql.com/doc/refman/8.0/en/data-directory-initialization.html
After MySQL is installed, the data directory must be initialized, including the tables in the mysql system schema: For some MySQL installation methods, data directory initialization is automatic, as described in Section 2.9, “Postinstallation ...
https://dev.mysql.com/doc/refman/8.0/en/silent-column-changes.html
In some cases, MySQL silently changes column specifications from those given in a CREATE TABLE or ALTER TABLE statement. See Section 10.4.7, “Limits on Table Column Count and Row Size”. Trailing spaces are automatically deleted from ENUM and ...
https://dev.mysql.com/doc/refman/8.0/en/example-auto-increment.html
To start with an AUTO_INCREMENT value other than 1, set that value with CREATE TABLE or ALTER TABLE, like this: mysql> ALTER TABLE tbl AUTO_INCREMENT = 100; InnoDB Notes For information about AUTO_INCREMENT usage specific to InnoDB, see Section ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-search-mecab.html
Creating a FULLTEXT Index that uses the MeCab Parser To create a FULLTEXT index that uses the mecab parser, specify WITH PARSER ngram with CREATE TABLE, ALTER TABLE, or CREATE INDEX. For InnoDB tables, minimum token size is defined by the ... The ...
https://dev.mysql.com/doc/refman/8.0/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 ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-cpudata-1sec.html
The cpudata_1sec table provides data about CPU usage per second over the last 20 seconds.