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https://dev.mysql.com/doc/refman/5.7/en/keyring-service.html
my_key_generate() Generates a new random key of a given type and length and stores it in the keyring. Syntax: my_bool my_key_generate(const char *key_id, const char *key_type, const char *user_id, size_t key_len) Arguments: key_id, user_id: ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-logs-event-buffer.html
NDB generates messages in the cluster log to describe the state of these buffers. Although these reports appear in the cluster log, they refer to buffers on API nodes (unlike most other cluster log messages, which are generated by data nodes). The ... NDB uses one or more memory buffers for events received from the data ...
https://dev.mysql.com/doc/refman/5.7/en/query-cache.html
The query cache is shared among sessions, so a result set generated by one client can be sent in response to the same query issued by another client. This is a typical situation for many Web servers that generate many dynamic pages based on database ... Note The query cache is deprecated as of MySQL 5.7.20, and is removed in MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/solaris-installation.html
To configure the generation of core files on Solaris you should use the coreadm command. Because of the security implications of generating a core on a setuid() application, by default, Solaris does not support core files on setuid() programs. If ...
https://dev.mysql.com/doc/refman/5.7/en/xml-functions.html
Table 12.16 XML Functions Name Description ExtractValue() Extract a value from an XML string using XPath notation UpdateXML() Return replaced XML fragment This section discusses XML and related functionality in MySQL. Note It is possible to obtain ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-what-is-new-7-6.html
Memory required for indexes on NDB table columns is now allocated dynamically from that allocated for DataMemory. In addition, data nodes now generate MemoryUsage events (see Section 21.6.3.2, “NDB Cluster Log Events”) and write appropriate ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-persistent-stats.html
If innodb_stats_auto_recalc is disabled, you can ensure the accuracy of optimizer statistics by executing the ANALYZE TABLE statement after making substantial changes to indexed columns. When an index is added to an existing table, or when a column ... The persistent optimizer statistics feature improves plan stability by storing statistics to disk and making them persistent across server restarts so that the optimizer is more likely to make consistent choices each time for a given ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-options-variables.html
--ndb-default-column-format=[FIXED|DYNAMIC] Command-Line Format --ndb-default-column-format={FIXED|DYNAMIC} Introduced 5.7.11-ndb-7.5.1 System Variable ndb_default_column_format Scope Global Dynamic Yes Type Enumeration Default Value (≥ ... This ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-restore.html
The following changes in primary key definitions are supported by --allow-pk-changes: Extending the primary key: A non-nullable column that exists in the table schema in the backup becomes part of the table's primary key in the database. Important ... The NDB Cluster restoration program is implemented as a separate command-line utility ndb_restore, which can normally be found in the MySQL bin ...
https://dev.mysql.com/doc/refman/5.7/en/blob.html
If strict SQL mode is not enabled and you assign a value to a BLOB or TEXT column that exceeds the column's maximum length, the value is truncated to fit and a warning is generated. Truncation of excess trailing spaces from values to be inserted ...