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https://dev.mysql.com/doc/refman/8.0/en/merge-table-problems.html
The following are known problems with MERGE tables: MERGE child tables are locked through the parent table. If the parent is a temporary table, it is not locked, and thus the child tables are also not locked; this means that parallel use of the ...
https://dev.mysql.com/doc/refman/8.0/en/multiple-data-directories.html
There are different methods of setting up a data directory for a new instance: Create a new data directory. Create a New Data Directory With this method, the data directory is in the same state as when you first install MySQL, and has the default ...
https://dev.mysql.com/doc/refman/8.0/en/multiple-windows-command-line-servers.html
To do this, create an option file for each server and tell the server the file name with a --defaults-file option when you run it. The procedure for starting a single MySQL server manually from the command line is described in Section 2.3.4.6, ...
https://dev.mysql.com/doc/refman/8.0/en/myisam-repair.html
In this case, you must use ALTER TABLE to increase the MAX_ROWS and AVG_ROW_LENGTH table option values: ALTER TABLE tbl_name MAX_ROWS=xxx AVG_ROW_LENGTH=yyy; If you do not know the current table option values, use SHOW CREATE TABLE. In this case, it ... The discussion in this section describes how to use myisamchk on MyISAM tables (extensions .MYI and ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-docker.html
Downloading a MySQL NDB Cluster Docker Image Downloading the Docker image in a separate step is not strictly necessary; however, performing this step before you create your Docker containers ensures your local image is up to date. You can list ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-log-events.html
Table 25.61 Events relating to NDB Cluster schema operations Event Priority Severity Level Description CreateSchemaObject 8 INFO Schema objected created AlterSchemaObject 8 INFO Schema object updated DropSchemaObject 8 INFO Schema object dropped ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndb-api-statistics.html
This reflects the creation of the hidden primary key that is a feature of all tables using the NDB storage engine. A number of types of statistical counters relating to actions performed by or affecting Ndb objects are available. Such actions ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-remarks.html
However, all data and indexes added to tables created after a new node group has been added are distributed automatically among all cluster data nodes, including those added as part of the new node group. Normal DML operations using NDB Cluster data ... This section provides general information about the behavior of and current limitations in adding NDB Cluster nodes ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-privilege-synchronization.html
A statement granting the NDB_STORED_USER privilege, such as GRANT NDB_STORED_USER ON *.* TO 'cluster_app_user'@'localhost', works by directing NDB to create a snapshot using the queries SHOW CREATE USER cluster_app_user@localhost and SHOW GRANTS FOR ... NDB 8.0 introduces a new mechanism for sharing and synchronizing users, roles, and privileges between SQL nodes connected to an NDB ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-blob-tool.html
This tool can be used to check for and remove orphaned BLOB column parts from NDB tables, as well as to generate a file listing any orphaned parts. It is sometimes useful in diagnosing and repairing corrupted or damaged NDB tables containing BLOB ...