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https://dev.mysql.com/doc/refman/8.0/en/ddl-rewriter-installation.html
To be usable by the server, the plugin library file must be located in the MySQL plugin directory (the directory named by the plugin_dir system variable). The primary use case is modification of statements restored from dump files, so the typical ...
https://dev.mysql.com/doc/refman/8.0/en/audit-api-message-emit.html
Installing or Uninstalling the Audit Message Component Audit Message Function Installing or Uninstalling the Audit Message Component To be usable by the server, the component library file must be located in the MySQL plugin directory (the directory ...To install the audit_api_message_emit component, use this statement: INSTALL COMPONENT "file://component_audit_api_message_emit"; Component installation is a one-time operation that need not be done per server ...
https://dev.mysql.com/doc/refman/8.0/en/group-by-modifiers.html
To also determine the total profit summed over all years, you must add up the individual values yourself or run an additional query. When the data set contains NULL values, ROLLUP summaries may contain NULL values not only in super-aggregate rows, ... The GROUP BY clause permits a WITH ROLLUP modifier that causes summary output to include extra rows that represent higher-level (that is, super-aggregate) summary ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-backup-troubleshooting.html
Important If you have set BackupDataBufferSize and BackupLogBufferSize and their sum is greater than 4MB, then you must also set BackupMemory as well. If an error code is returned when issuing a backup request, the most likely cause is insufficient ...You should check that there is enough memory allocated for the ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-geohash-functions.html
If any SRID argument is not within the range of a 32-bit unsigned integer, an ER_DATA_OUT_OF_RANGE error occurs. The functions in this section enable manipulation of geohash values, which provides applications the capabilities of importing and ...
https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-concurrent-ddl.html
If a backup lock is not obtained with the specified time limit, the cloning operation fails with an error. DDL operations that are not permitted during a cloning operation regardless of the clone_block_ddl setting include: ALTER TABLE tbl_name ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-statement-summary-tables.html
For example, the SUM_LOCK_TIME and SUM_ERRORS columns in statement summary tables are the aggregates of the LOCK_TIME and ERRORS columns in events_statements_current table. For use with MySQL HeatWave Service and MySQL HeatWave, where the PRIMARY ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-transaction-tables.html
Configuring Transaction Event Collection Transaction Boundaries Transaction Instrumentation Transactions and Nested Events Transactions and Stored Programs Transactions and Savepoints Transactions and Errors Configuring Transaction Event Collection ...Within the event hierarchy, wait events nest within stage events, which nest within statement events, which nest within transaction ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-functions-plugin-specific.html
keyring_aws_rotate_keys() Associated keyring plugin: keyring_aws keyring_aws_rotate_keys() rotates keys stored in the keyring_aws storage file named by the keyring_aws_data_file system variable. Rotation changes only the key that AWS KMS uses for ...
https://dev.mysql.com/doc/refman/8.0/en/charset-gb18030.html
Chinese characters are sorted according to the Pinyin collation defined in the Unicode Common Locale Data Repository (CLDR 24). In MySQL, the gb18030 character set corresponds to the “Chinese National Standard GB 18030-2005: Information ...Case ...