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https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-disk-data-storage-requirements.html
In a Disk Data table, the first 256 bytes of a TEXT or BLOB column are stored in memory; only the remainder is stored on disk. The following items apply to Disk Data storage requirements: Variable-length columns of Disk Data tables take up a fixed ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-limitations-database-objects.html
Each BLOB or TEXT column contributes 256 + 8 = 264 bytes to this total; this includes JSON columns. Some database objects such as tables and indexes have different limitations when using the NDBCLUSTER storage engine: Number of database objects.
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-limitations-exclusive-to-cluster.html
NDB Cluster has the following limitations or restrictions with regard to binary logging: NDB Cluster cannot produce a binary log for tables having BLOB columns but no primary key. The following are limitations specific to the NDB storage engine: ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndb-innodb-usage.html
When comparing application feature requirements to the capabilities of InnoDB with NDB, some are clearly more compatible with one storage engine than the other. The following table lists supported application features according to the storage ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-dictionary-columns.html
The table provides NDB dictionary information about columns of NDB tables.
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-transporters.html
Notes For each running data node in the cluster, the transporters table displays a row showing the status of each of that node's connections with all nodes in the cluster, including itself. This information is shown in the table's status column, ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo.html
ndbinfo is a database containing information specific to NDB Cluster. This database contains a number of tables, each providing a different sort of data about NDB Cluster node status, resource usage, and operations. You can find more detailed ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-online-operations.html
Columns to be added online cannot use the BLOB or TEXT type, and must meet the following criteria: The columns must be dynamic; that is, it must be possible to create them using COLUMN_FORMAT DYNAMIC. MySQL NDB Cluster supports online table schema ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-import.html
--opbatch=# Command-Line Format --opbatch=# Type Integer Default Value 256 Minimum Value 1 Maximum Value 4294967295 Unit bytes Set a limit on the number of operations (including blob operations), and thus the number of asynchronous transactions, per ... ndb_import imports CSV-formatted data, such as that produced by mysqldump --tab, directly into NDB using the NDB ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-command-options.html
In addition, output from the status (or \s) command includes this line when the option is enabled implicitly or explicitly: Binary data as: Hexadecimal To disable hexadecimal notation, use --skip-binary-as-hex --binary-mode Command-Line Format ...