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https://dev.mysql.com/doc/refman/8.0/en/myisampack.html
When the table is used later, the server reads into memory the information needed to decompress columns. This results in much better performance when accessing individual rows, because you only have to uncompress exactly one row. MySQL uses mmap() ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-move-data.html
--connect-retry-delay Command-Line Format --connect-retry-delay=# Type Integer Default Value 5 Minimum Value 0 Maximum Value 5 Number of seconds to wait between attempts to contact management server. --connect-retries Command-Line Format ...Usage ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlbinlog.html
--binlog-row-event-max-size=N Command-Line Format --binlog-row-event-max-size=# Type Numeric Default Value 4294967040 Minimum Value 256 Maximum Value 18446744073709547520 Specify the maximum size of a row-based binary log event, in bytes. The ...
https://dev.mysql.com/doc/refman/8.0/en/mysqldump.html
--max-allowed-packet=value Command-Line Format --max-allowed-packet=value Type Numeric Default Value 25165824 The maximum size of the buffer for client/server communication. Note The value of this option is specific to mysqldump and should not be ...
https://dev.mysql.com/doc/refman/8.0/en/with.html
As a development technique to guard against a runaway recursive CTE, you can force termination by placing a limit on execution time: The cte_max_recursion_depth system variable enforces a limit on the number of recursion levels for CTEs. The ... A ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-options-variables.html
The clone_max_concurrency variable defines the maximum number of threads that can be spawned. If clone_autotune_concurrency is disabled, clone_max_concurrency defines the number of threads spawned for a remote cloning operation. clone_buffer_size ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-options-variables.html
Each connection requires its own [api] or [mysqld] section in the cluster configuration (config.ini) file, and counts against the maximum number of API connections supported by the cluster. --ndb-blob-read-batch-bytes=bytes Command-Line Format ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-import.html
--ai-increment=# Command-Line Format --ai-increment=# Type Integer Default Value 1 Minimum Value 1 Maximum Value 4294967295 For a table with a hidden primary key, specify the autoincrement increment, like the auto_increment_increment system variable ... 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/8.0/en/mysql-cluster-what-is-new.html
NDB 8.0 increases the maximum number of bytes that can be stored in an NDBCLUSTER table from 14000 to 30000 bytes. The maximum offset for a fixed-width column of an NDB table is 8188 bytes; this is also unchanged from previous releases. Previously, ... The following sections describe changes in the implementation of MySQL NDB Cluster in NDB Cluster 8.0 through 8.0.44, as compared to earlier release ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-indexes.html
To find the MIN() or MAX() value for a specific indexed column key_col. In this case, MySQL does a single key lookup for each MIN() or MAX() expression and replaces it with a constant. For example: SELECT MIN(key_part2),MAX(key_part2) FROM tbl_name ... Indexes are used to find rows with specific column values ...