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https://dev.mysql.com/doc/refman/8.0/en/binary-log.html
You can also cause the server to write checksums for the events by setting the binlog_checksum system variable. When reading back from the binary log, the source uses the event length by default, but can be made to use checksums if available by ...
https://dev.mysql.com/doc/refman/8.0/en/myisamchk-repair-options.html
--correct-checksum Command-Line Format --correct-checksum Correct the checksum information for the table. --data-file-length=len, -D len Command-Line Format --data-file-length=len Type Numeric The maximum length of the data file (when re-creating ...
https://dev.mysql.com/doc/refman/8.0/en/myisam-check.html
It calculates a checksum for all key values in the rows and verifies that the checksum matches the checksum for the keys in the index tree. To check a MyISAM table, use the following commands: myisamchk tbl_name This finds 99.99% of all errors.
https://dev.mysql.com/doc/refman/8.0/en/glossary.html
checksum In InnoDB, a validation mechanism to detect corruption when a page in a tablespace is read from disk into the InnoDB buffer pool. This feature is controlled by the innodb_checksums configuration option in MySQL 5.5. The innochecksum command ... These terms are commonly used in information about the MySQL database ...
https://dev.mysql.com/doc/refman/8.0/en/built-in-function-reference.html
The following table lists each built-in (native) function and operator and provides a short description of each one. For a table listing functions that are loadable at runtime, see Section 14.2, “Loadable Function Reference”. ->> Return value ...
https://dev.mysql.com/doc/refman/8.0/en/create-table-ndb-comment-options.html
NDB_COLUMN Options NDB_TABLE Options It is possible to set a number of options specific to NDB Cluster in the table comment or column comments of an NDB table. Table-level options for controlling read from any replica and partition balance can be ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-requirements.html
In these releases, Group Replication cannot make use of checksums and does not support their presence in the binary log. From MySQL 8.0.21, Group Replication supports checksums, so group members may use the default setting binlog_checksum=CRC32, and ... Infrastructure Server Instance Configuration Server instances that you want to use for Group Replication must satisfy the following ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-tables-table.html
The information_schema_stats_expiry system variable defines the period of time before cached table statistics expire. If there are no cached statistics or statistics have expired, statistics are retrieved from storage engines when querying table ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-partitions-table.html
For each such row: The SUBPARTITION_NAME, SUBPARTITION_ORDINAL_POSITION, SUBPARTITION_METHOD, PARTITION_EXPRESSION, SUBPARTITION_EXPRESSION, CREATE_TIME, UPDATE_TIME, CHECK_TIME, CHECKSUM, and TABLESPACE_NAME columns are all NULL. Each row in this ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-file-plugin.html
To ensure that keys are flushed only when the correct keyring storage file exists, keyring_file stores a SHA-256 checksum of the keyring in the file. Before updating the file, the plugin verifies that it contains the expected checksum. The ...