https://dev.mysql.com/mysql-cluster-programs-ndb-blob-tool.html
--delete-orphans Property Value Command-Line Format --delete-orphans Type Boolean Default Value FALSE Remove orphaned BLOB parts from NDB Cluster tables. --verbose Property Value Command-Line Format --verbose Type Boolean Default Value FALSE Provide ... This tool can be used to check for and remove orphaned BLOB column parts from NDB tables, as well as to generate a file listing any orphaned ...
https://dev.mysql.com/mysql-cluster-sci-definition.html
SendSignalId Table 22.330 This table provides type and value information for the SendSignalId SCI configuration parameter Property Value Version (or later) NDB 8.0.13 Type or units boolean Default true Range true, false Restart Type N To trace a ...
https://dev.mysql.com/mysql-innodb-cluster-working-with-clone.html
Set the disableClone Boolean option to false to disable MySQL Clone for the cluster. It is recommended to use MySQL Clone, by either upgrading the cluster or setting the disableClone option to false. A InnoDB cluster that uses MySQL Clone provides ...
https://dev.mysql.com/outer-join-optimization.html
For a LEFT JOIN, if the WHERE condition is always false for the generated NULL row, the LEFT JOIN is changed to an inner join. MySQL implements an A LEFT JOIN B join_specification as follows: Table B is set to depend on table A and all tables on ...
https://dev.mysql.com/plugin-data-structures.html
For example: static MYSQL_THDVAR_BOOL(some_flag, PLUGIN_VAR_NOCMDARG, "flag comment", NULL, NULL, FALSE); ... if (THDVAR(thd, some_flag)) { do_something(); THDVAR(thd, some_flag)= FALSE; } All global and session system variables must be published to ... A plugin library file includes descriptor information to indicate what plugins it ...
https://dev.mysql.com/server-configuration.html
Its output includes the default option and variable values and looks something like this: abort-slave-event-count 0 allow-suspicious-udfs FALSE archive ON auto-increment-increment 1 auto-increment-offset 1 autocommit TRUE automatic-sp-privileges ...
https://dev.mysql.com/subquery-materialization.html
oe [NOT] IN (SELECT ie ...) The predicate is IN or NOT IN and a result of UNKNOWN (NULL) has the same meaning as a result of FALSE. The following examples illustrate how the requirement for equivalence of UNKNOWN and FALSE predicate evaluation ...
https://dev.mysql.com/correlated-subqueries.html
WHERE column1 = ANY (SELECT column1 FROM t2) would be TRUE, but in this example, the WHERE clause within the subquery is FALSE (because (5,6) is not equal to (5,7)), so the expression as a whole is FALSE. A correlated subquery is a subquery that ...
https://dev.mysql.com/docker-mysql-more-topics.html
Therefore, setting them to, for example, “0”, “false”, or “no” does not make them false, but actually makes them true. A MySQL Docker installation is different from a common, non-Docker installation in the following aspects: Included ...
https://dev.mysql.com/error-log-rule-based-filtering.html
In subsequent rules, EXISTS tests against the field name are false, and comparisons of the field against any value are false. The log_filter_dragnet log filter component enables log filtering based on user-defined rules. To enable the ...
