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https://dev.mysql.com/doc/refman/8.0/en/replication-options-replica.html
Reconnection is attempted at intervals set by the SOURCE_CONNECT_RETRY | MASTER_CONNECT_RETRY option of the CHANGE REPLICATION SOURCE TO | CHANGE MASTER TO statement (which defaults to every 60 seconds). When the slow query log is enabled, ... This ...
https://dev.mysql.com/doc/refman/8.0/en/json-modification-functions.html
In the final example, the second path inserts nothing because the path no longer matches anything after the first insert. JSON_MERGE_PATCH() performs a merge as follows: If the first argument is not an object, the result of the merge is the same as ... The functions in this section modify JSON values and return the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-options-variables.html
--ndb-optimization-delay=milliseconds Command-Line Format --ndb-optimization-delay=# System Variable ndb_optimization_delay Scope Global Dynamic Yes SET_VAR Hint Applies No Type Integer Default Value 10 Minimum Value 0 Maximum Value 100000 Unit ...
https://dev.mysql.com/doc/refman/8.0/en/gis-point-property-functions.html
These functions also permit an optional second argument that specifies an X or Y coordinate value, in which case the function result is the Point object from the first argument with the appropriate coordinate modified to be equal to the second ... A ...
https://dev.mysql.com/doc/refman/8.0/en/expressions.html
For example, if you specify a unit of DAY_SECOND, the value of expr is expected to have days, hours, minutes, and seconds parts. If you specify a value like '1:10', MySQL assumes that the days and hours parts are missing and the value represents ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-diskstats-1sec.html
The diskstats_1sec table provides information about writes to Disk Data tablespaces over the past 20 seconds.
https://dev.mysql.com/doc/refman/8.0/en/x-plugin-options-system-variables.html
mysqlx_connect_timeout Command-Line Format --mysqlx-connect-timeout=# System Variable mysqlx_connect_timeout Scope Global Dynamic Yes SET_VAR Hint Applies No Type Integer Default Value 30 Minimum Value 1 Maximum Value 1000000000 Unit seconds The ...
https://dev.mysql.com/doc/refman/8.0/en/date-and-time-literals.html
MySQL also recognizes the ODBC syntax corresponding to the standard SQL syntax: { d 'str' } { t 'str' } { ts 'str' } MySQL uses the type keywords and the ODBC constructions to produce DATE, TIME, and DATETIME values, respectively, including a ...
https://dev.mysql.com/doc/refman/8.0/en/time-zone-support.html
This section describes the time zone settings maintained by MySQL, how to load the system tables required for named time support, how to stay current with time zone changes, and how to enable leap-second support. Time Zone Variables Populating the ...Beginning with MySQL 8.0.19, time zone offsets are also supported for inserted datetime values; see Section 13.2.2, “The DATE, DATETIME, and TIMESTAMP Types”, for more ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-diskstat.html
The diskstat table provides information about writes to Disk Data tablespaces during the past 1 second.