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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-resources.html
This table provides information about data node resource availability and usage. In NDB 8.0.19 and later this can be controlled using the TransactionMemory configuration parameter. Sum of DataMemory and IndexMemory, plus 8 pages of 32 KB each if ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-remarks.html
This section provides general information about the behavior of and current limitations in adding NDB Cluster nodes online. The ability to add new nodes online includes a means to reorganize NDBCLUSTER table data and indexes so that they are ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-perror.html
This includes the error message, the type of error, and whether the error is permanent or temporary. To make substitution easier in scripts and other applications that might depend on perror for obtaining NDB error information, ndb_perror supports ... ndb_perror shows information about an NDB error, given its error ...
https://dev.mysql.com/doc/refman/8.0/en/number-literals.html
Number literals include exact-value (integer and DECIMAL) literals and approximate-value (floating-point) literals. Numbers represented in scientific notation with a mantissa and exponent are approximate-value numbers. Approximate-value numeric ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-ddl-operations.html
Many DDL operations on tables and indexes (CREATE, ALTER, and DROP statements) can be performed online. Online DDL support for adding secondary indexes means that you can generally speed up the process of creating and loading a table and associated ...Use TRUNCATE TABLE to empty a table, not DELETE FROM ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-maintenance.html
A number of table and partition maintenance tasks can be carried out on partitioned tables using SQL statements intended for such purposes. Table maintenance of partitioned tables can be accomplished using the statements CHECK TABLE, OPTIMIZE ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-asynchronous-connection-failover-managed-table.html
When you add a group member to the source list and define it as part of a managed group, the asynchronous connection failover mechanism updates the source list to keep it in line with membership changes, adding and removing group members ... This ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-asynchronous-connection-failover-table.html
When asynchronous connection failover is enabled for a group of replicas managed by Group Replication, the source lists are broadcast to all group members when they join, and also when the lists change. You set and manage source lists using the ...
https://dev.mysql.com/doc/refman/8.0/en/precision-math-numbers.html
The scope of precision math for exact-value operations includes the exact-value data types (integer and DECIMAL types) and exact-value numeric literals. Approximate-value data types and numeric literals are handled as floating-point numbers.
https://dev.mysql.com/doc/refman/8.0/en/problems-with-float.html
Floating-point numbers sometimes cause confusion because they are approximate and not stored as exact values. The FLOAT and DOUBLE data types are subject to these issues. If columns d1 and d2 had been defined as DECIMAL rather than DOUBLE, the ...A ...