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https://dev.mysql.com/doc/refman/8.4/en/server-system-variables.html
This includes result data such as column values, result metadata such as column names, and error messages. For comparisons of strings with column values, collation_connection does not matter because columns have their own collation, which has a ...
https://dev.mysql.com/doc/ndbapi/en/ndb-table.html
Similarly, it is possible using Table methods to modify existing tables, but these changes (except for renaming tables) are not visible to MySQL. For example, if you add a new column to a table using Table::addColumn(), MySQL cannot see the new ...
https://dev.mysql.com/doc/ndbapi/en/ndb-index.html
Index Class Overview Index Class Constructor Index::addColumn() Index::addColumnName() Index::addColumnNames() Index::getColumn() Index::getLogging() Index::getName() Index::getNoOfColumns() Index::getObjectStatus() Index::getObjectVersion() ...It ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-nutshell.html
As part of this work, a new MEMBER_FAILURE_SUSPICIONS_COUNT column was added to the Performance Schema replication_group_communication_information table. The contents of this column are formatted as a JSON array whose keys are group members ID and ... This section summarizes what has been added to, deprecated in, changed, and removed from MySQL 8.4 since MySQL ...
https://dev.mysql.com/doc/refman/8.4/en/converting-tables-to-innodb.html
File-per-table tablespaces also support DYNAMIC and COMPRESSED row formats and associated features such as table compression, efficient off-page storage for long variable-length columns, and large index prefixes. Create an empty InnoDB table with ...
https://dev.mysql.com/doc/mysql-ai/9.4/en/mys-aiaml-error-messages.html
For a real valued target column, the task parameter in the options JSON should be set to regression. For a real valued target column, the task parameter in the options JSON should be set to regression. If a classification model is intended, add more ... Each error message includes an error number, SQLSTATE value, and message string, as described in Error Message Sources and ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-error-messages.html
If a classification model is intended, add more samples to the data to increase the minority class count; that is, add more rows with the under-represented target column value. They are constant, mostly unique, or have a lot of missing values! ...
https://dev.mysql.com/doc/refman/8.4/en/information-functions.html
Although the expression can be a subquery, it must return a single column and at most a single row. For example, BENCHMARK(10, (SELECT * FROM t)) fails if the table t has more than one column or more than one row. The value returned by ...It may be ...
https://dev.mysql.com/doc/refman/8.4/en/mysqldump.html
--allow-keywords Command-Line Format --allow-keywords Permit creation of column names that are keywords. This works by prefixing each column name with the table name. --complete-insert, -c Command-Line Format --complete-insert Use complete INSERT ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-1.html
(Bug #35205358) Data Dictionary Notes Attempting to upgrade a MyISAM table containing a mix of regular columns and generated columns from MySQL 5.7 to 8.0 or later led to table corruption. (Bug #36170903) The PROCESSLIST_INFO column of THREADS was ...It was removed due to a critical issue that could stop the server from restarting following the creation of a very large number of tables (8001 or ...