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https://dev.mysql.com/doc/mysql-router/9.4/en/mysqlrouter.html
If additional instances are desired, use the --directory option to create self-contained MySQL Router installations. The configuration file is regenerated from scratch and the MySQL Router's metadata server account is recreated, although with the ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/mysqlbackup.incremental.html
Creating Incremental Backups Using Only the Redo Log The --incremental-with-redo-log-only might offer some benefits over the --incremental option for creating an incremental backup: The changes to the InnoDB tables are determined based on the ...To ...In order to that, after making first a full backup that contains all data, you can do one of the following: Performing a series of differential ...
https://dev.mysql.com/doc/refman/8.4/en/type-conversion.html
mysql> SELECT 38.8, CAST(38.8 AS CHAR); -> 38.8, '38.8' mysql> SELECT 38.8, CONCAT(38.8); -> 38.8, '38.8' See later in this section for information about the character set of implicit number-to-string conversions, and for modified rules that apply ...A single-row subquery from a table or tables is not considered a ... When an operator is used with operands of ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-subpartitions.html
Consider the following CREATE TABLE statement: CREATE TABLE ts (id INT, purchased DATE) PARTITION BY RANGE( YEAR(purchased) ) SUBPARTITION BY HASH( TO_DAYS(purchased) ) SUBPARTITIONS 2 ( PARTITION p0 VALUES LESS THAN (1990), PARTITION p1 VALUES LESS ... Subpartitioning—also known as composite partitioning—is the further division of each partition in a partitioned ...
https://dev.mysql.com/doc/heatwave-aws/en/heatwave-aws-cloudwatch-metrics.html
dbSystemId Detailed mysql.stats.created.tmp_disk_tables Count The number of internal on-disk temporary tables created by the server while executing statements. dbSystemId Detailed mysql.stats.created.tmp_tables Count The number of internal temporary ...Metrics: Table 17-1 list the metrics for monitoring your DB Systems and MySQL HeatWave ... CloudWatch Monitoring Metrics 17.1.1 CloudWatch Monitoring Metrics CloudWatch metrics can be used to monitor ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-troubleshooting-datadict.html
See Section 17.6.1.4, “Moving or Copying InnoDB Tables” for information about creating clean backups. On the new MySQL instance, recreate the table in a database of the same name. Information about table definitions is stored in the InnoDB data ...If you move data files around, dictionary data can become ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-6.html
Partitioning: Truncating a partition was rejected with a duplicate entry error when the partition ID exceeded INT_MAX, preventing creation of new partitioned tables. (Bug #35912852) Replication: When using replication in a chain, CREATE TABLE ...
https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-conversion.html
Tables created with these row formats enable you to index a maximum of 1024 or 768 characters for utf8mb3 or utf8mb4 columns, respectively. In terms of table content, conversion from utf8mb3 to utf8mb4 presents no problems: For a BMP character, ...
https://dev.mysql.com/doc/refman/8.4/en/upgrade-binary-package.html
Important If you have tables that contain generated columns, use the mysqldump utility provided with MySQL 5.7.9 or higher to create your dump files. For example: mysqld_safe --user=mysql --datadir=/path/to/existing-datadir & If there are encrypted ... This section describes how to upgrade MySQL binary and package-based installations on ...
https://dev.mysql.com/doc/internals/en/x-protocol-messages-messages.html
Returns Mysqlx.Resultset:: message Update { required Collection collection = 2; optional DataModel data_model = 3; optional Mysqlx.Expr.Expr criteria = 4; repeated Mysqlx.Datatypes.Scalar args = 8; optional Limit limit = 5; repeated Order order = 6; ... Topics in this section: Message Structure Message Sequence Common Messages Connection Session Expectations CRUD SQL Result Sets Expressions Data Types This section provides detailed information about how X Protocol defines ...