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https://dev.mysql.com/doc/refman/5.7/en/encrypted-connection-protocols-ciphers.html
If you set a TLS version parameter to the empty string, encrypted connections cannot be established: tls_version: The server does not permit encrypted incoming connections. MySQL supports multiple TLS protocols and ciphers, and enables configuring ...
https://dev.mysql.com/doc/refman/5.7/en/server-status-variables.html
If the group is operating in multi-primary mode, shows an empty string. The MySQL server maintains many status variables that provide information about its operation. You can view these variables and their values by using the SHOW [GLOBAL | ...
https://dev.mysql.com/doc/refman/5.7/en/time-zone-support.html
As a string indicating an offset from UTC of the form [H]H:MM, prefixed with a + or -, such as '+10:00', '-6:00', or '+05:30'. This section describes the time zone settings maintained by MySQL, how to load the system tables required for named time ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-sql-statements.html
row *************************** PLUGIN_NAME: ndbcluster PLUGIN_VERSION: 1.0 PLUGIN_STATUS: ACTIVE PLUGIN_TYPE: STORAGE ENGINE PLUGIN_TYPE_VERSION: 50729.0 PLUGIN_LIBRARY: NULL PLUGIN_LIBRARY_VERSION: NULL PLUGIN_AUTHOR: MySQL AB PLUGIN_DESCRIPTION: ... This section discusses several SQL statements that can prove useful in managing and monitoring a MySQL server that is connected to an NDB Cluster, and in some cases provide information about the cluster ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-memcached-troubleshoot.html
Attempting to insert a NULL value into a NOT NULL column causes the INSERT to fail, which may only become evident after you reinitialize the daemon_memcached plugin to apply changes to the innodb_memcache.containers table. If cas_column and ... This ...
https://dev.mysql.com/doc/refman/5.7/en/rewriter-query-rewrite-plugin-usage.html
row *************************** id: 1 pattern: SELECT ? pattern_database: NULL replacement: SELECT ? + 1 enabled: YES message: NULL pattern_digest: NULL normalized_pattern: NULL The rule specifies a pattern template indicating which SELECT ... To ...
https://dev.mysql.com/doc/refman/5.7/en/precision-math-expressions.html
If a numeric expression contains any strings, they are converted to double-precision floating-point values and the expression is approximate. For inserts of strings into numeric columns, conversion from string to number is handled as follows if the ... With precision math, exact-value numbers are used as given whenever ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-command-options.html
--binary-as-hex when enabled affects display of all binary strings, including those returned by functions such as CHAR() and UNHEX(). By default, mysql translates \r\n in statement strings to \n and interprets \0 as the statement terminator. mysql ...
https://dev.mysql.com/doc/refman/5.7/en/replication-features-memory.html
To replicate this effect to replicas, the first time that the source uses a given MEMORY table after startup, it logs an event that notifies replicas that the table must be emptied by writing a DELETE or (from MySQL 5.7.32) TRUNCATE TABLE statement ... When a replication source server shuts down and restarts, its MEMORY tables become ...
https://dev.mysql.com/doc/refman/5.7/en/select-into.html
If the FIELDS ESCAPED BY character is empty, no characters are escaped and NULL is output as NULL, not \N. INTO form of SELECT enables a query result to be stored in variables or written to a file: SELECT ... Column and line terminators can be ...