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https://dev.mysql.com/doc/refman/5.7/en/keyring-functions-general-purpose.html
The value can be retrieved by any user with the EXECUTE privilege for that function, which is created in the key_schema schema. MySQL Server supports a keyring service that enables internal server components and plugins to store sensitive ...
https://dev.mysql.com/doc/refman/5.7/en/keywords.html
Reserved words are permitted as identifiers if you quote them as described in Section 9.2, “Schema Object Names”: mysql> CREATE TABLE interval (begin INT, end INT); ERROR 1064 (42000): You have an error in your SQL syntax ... Certain keywords, ...
https://dev.mysql.com/doc/refman/5.7/en/locking-service.html
Locks acquired or waited for by the locking service can be monitored at the SQL level using the Performance Schema. Locking Service Monitoring The locking service is implemented using the MySQL Server metadata locks framework, so you monitor locking ... MySQL distributions provide a locking interface that is accessible at two levels: At the SQL level, as a set of loadable functions that each map onto calls to the service ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-general-info.html
While many standard MySQL schemas and applications can work using NDB Cluster, it is also true that unmodified applications and database schemas may be slightly incompatible or have suboptimal performance when run using NDB Cluster (see Section ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-operations-per-fragment.html
The type column shows the schema object type used for this fragment, which can take any one of the values System table, User table, Unique hash index, or Ordered index. An attrinfo typically contains tuple field values (inserts and updates) or ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-online-operations.html
MySQL NDB Cluster 7.5 and 7.6 support online table schema changes using ALTER TABLE ... For ALGORITHM=COPY, the mysqld NDB Cluster handler performs the following actions: Tells the data nodes to create an empty copy of the table, and to make the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-option-tables.html
ndb-transid-mysql-connection-map: Enable or disable ndb_transid_mysql_connection_map plugin; that is, enable or disable INFORMATION_SCHEMA table having that name. ndb_extra_logging: Controls logging of NDB Cluster schema, connection, and data ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-replication-conflict-resolution.html
NDB$EPOCH() and NDB$EPOCH_TRANS() do not require any user schema modifications, or application changes to provide conflict detection. However, careful thought must be given to the schema used, and the access patterns used, to verify that the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-start-phases.html
The master node is chosen, and the cluster schema file is initialized. This section provides a simplified outline of the steps involved when NDB Cluster data nodes are started. More complete information can be found in NDB Cluster Start Phases, in ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-what-is-new-7-6.html
In some cases, it may be desirable to consolidate data originally stored in different instances of NDB Cluster (all using the same schema) into a single target NDB Cluster. --context (short form -x): Provides extra information about the table, ...