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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/analyze-table.html
ANALYZE TABLE with the UPDATE HISTOGRAM clause generates histogram statistics for the named table columns and stores them in the data dictionary. MySQL also supports setting the histogram of a single column to a user-defined JSON value. ANALYZE ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-12.html
Version 8.0.12 is the latest General Availability release of the 8.0 series of MySQL Connector/J. It is suitable for use with MySQL Server versions 8.0, 5.7, 5.6, and 5.5. It supports the Java Database Connectivity (JDBC) 4.2 API, and implements ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-restore.html
The following changes in primary key definitions are supported by --allow-pk-changes: Extending the primary key: A non-nullable column that exists in the table schema in the backup becomes part of the table's primary key in the database. Important ... The NDB Cluster restoration program is implemented as a separate command-line utility ndb_restore, which can normally be found in the MySQL bin ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-genai-byo-embedding-tables.html
The ML_RAG and ML_RAG_TABLE routines let you specify the table column names to use as filters for finding relevant tables for context retrieval. In addition to the specified column names, the ML_RAG and ML_RAG_TABLE routines use the name of the ...
https://dev.mysql.com/doc/refman/8.4/en/create-index.html
For more information, see Section 15.1.20.9, “Secondary Indexes and Generated Columns”. The expr for a key_part specification can also take the form (CAST json_expression AS type ARRAY) to create a multi-valued index on a JSON column. For ...
https://dev.mysql.com/doc/mysql-ai/9.4/en/mys-ai-genai-byo-embedding-tables.html
The ML_RAG and ML_RAG_TABLE routines let you specify the table column names to use as filters for finding relevant tables for context retrieval. In addition to the specified column names, the ML_RAG and ML_RAG_TABLE routines use the name of the ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-conflict-resolution.html
Requirements Source Column Control Conflict Resolution Control Conflict Resolution Functions Conflict Resolution Exceptions Table Conflict Detection Status Variables Examples When using a replication setup involving multiple sources (including ...
https://dev.mysql.com/doc/ndbapi/en/ndb-ndboperation.html
The branch column methods such as branch_col_le() compare a supplied value with the value of a column. These comparison types are supported only for the bitfield type, and can be used to test bitfield columns against bit patterns. The value passed ...Beginning with NDB 8.0.30, NdbOperation supports an interpreted code API similar to that implemented by ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-persistent-stats.html
If innodb_stats_auto_recalc is disabled, you can ensure the accuracy of optimizer statistics by executing the ANALYZE TABLE statement after making substantial changes to indexed columns. When an index is added to an existing table, or when a column ... The persistent optimizer statistics feature improves plan stability by storing statistics to disk and making them persistent across server restarts so that the optimizer is more likely to make consistent choices each time for a given ...