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https://dev.mysql.com/doc/refman/8.4/en/partitioning-columns.html
The next two sections discuss COLUMNS partitioning, which are variants on RANGE and LIST partitioning. COLUMNS partitioning enables the use of multiple columns in partitioning keys. All of these columns are taken into account both for the purpose ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-setup-meters-table.html
This column can be modified DESCRIPTION: A string describing the meter.
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-setup-metrics-table.html
The setup_metrics table lists the available metrics: mysql> select * from performance_schema.setup_metrics\G *************************** 34. row *************************** NAME: undo_tablespaces_active METER: mysql.inno METRIC_TYPE: ASYNC GAUGE ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-statement-tables.html
This may be helpful for purposes such as identifying clients that are misconfigured or using a version of MySQL more recent than that of the server, or clients that are attempting to attack the server. Statement events occur at a high level of the ...
https://dev.mysql.com/doc/refman/8.4/en/populating-spatial-columns.html
After you have created spatial columns, you can populate them with spatial data. Values should be stored in internal geometry format, but you can convert them to that format from either Well-Known Text (WKT) or Well-Known Binary (WKB) format. For ...
https://dev.mysql.com/doc/refman/8.4/en/precision-math-decimal-characteristics.html
This section discusses the characteristics of the DECIMAL data type (and its synonyms), with particular regard to the following topics: Maximum number of digits Storage format Storage requirements The nonstandard MySQL extension to the upper range ...
https://dev.mysql.com/doc/refman/8.4/en/replication-howto-slaveinit.html
To set up the replica to communicate with the source for replication, configure the replica with the necessary connection information. To do this, on the replica, execute the following CHANGE REPLICATION SOURCE TO statement, replacing the option ...
https://dev.mysql.com/doc/refman/8.4/en/replication-options.html
The following sections contain information about mysqld options and server variables that are used in replication and for controlling the binary log. Options and variables for use on sources and replicas are covered separately, as are options and ...
https://dev.mysql.com/doc/refman/8.4/en/replication-rbr-usage.html
MySQL uses statement-based logging (SBL), row-based logging (RBL) or mixed-format logging. The type of binary log used impacts the size and efficiency of logging. Therefore the choice between row-based replication (RBR) or statement-based ...
https://dev.mysql.com/doc/refman/8.4/en/set-character-set.html
Attempting to use them with SET CHARACTER SET produces an error. SET {CHARACTER SET | CHARSET} {'charset_name' | DEFAULT} This statement maps all strings sent between the server and the current client with the given mapping. SET CHARACTER SET sets ...