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https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-options-variables.html
Important Because each SQL node using connection pooling occupies multiple API node slots—each slot having its own node ID in the cluster—you must not use a node ID as part of the cluster connection string when starting any mysqld process that ... This section provides information about MySQL server options, server and status variables that are specific to NDB ...
https://dev.mysql.com/doc/refman/8.4/en/bit-functions.html
The result type depends on whether the arguments are evaluated as binary strings or numbers: Binary-string evaluation occurs when the arguments have a binary string type, and at least one of them is not a hexadecimal literal, bit literal, or NULL ...
https://dev.mysql.com/doc/refman/8.4/en/json.html
BLOB BIT OPAQUE DATETIME TIME DATE BOOLEAN ARRAY OBJECT STRING INTEGER, DOUBLE NULL For JSON values of the same precedence, the comparison rules are type specific: BLOB The first N bytes of the two values are compared, where N is the number of bytes ...The JSON data type provides these advantages over storing JSON-format strings in a string column: Automatic validation of JSON documents stored in JSON ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-desc.html
Usage ndb_desc -c connection_string tbl_name -d db_name [options] ndb_desc -c connection_string index_name -d db_name -t tbl_name Additional options that can be used with ndb_desc are listed later in this section. --connect-string Command-Line ...
https://dev.mysql.com/doc/refman/8.4/en/get-diagnostics.html
The first value is a non-NULL string and the second is NULL. For example, the handler maps the NULL insert to an empty-string insert and displays the result. The empty row results from the attempt to insert NULL that was mapped to an empty-string ...
https://dev.mysql.com/doc/refman/8.4/en/mysqldump.html
NULL, 'NULL', and Empty Values: For a column named column_name, the NULL value, an empty string, and the string value 'NULL' are distinguished from one another in the output generated by this option as follows. Value: XML Representation: NULL ...
https://dev.mysql.com/doc/mysql-ai/9.4/en/mys-ai-aml-ml-model-metadata.html
Model Metadata Details Query Model Metadata See Also Model Metadata Details model_metadata contains the following metadata as key-value pairs in JSON format: task: string The task type specified in the ML_TRAIN query. target_column_name: string The ... The model_metadata column in the model catalog allows you to view detailed information on trained ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-range.html
A table that is partitioned by range is partitioned in such a way that each partition contains rows for which the partitioning expression value lies within a given range. Ranges should be contiguous but not overlapping, and are defined using the ...
https://dev.mysql.com/doc/refman/8.4/en/subquery-optimization-with-exists.html
This section discusses these optimizations, particularly with regard to the challenges that NULL values present. The “pushdown” strategy just described works if either of these conditions is true: outer_expr and inner_expr cannot be NULL.
https://dev.mysql.com/doc/connectors/en/connector-net-8-0-connection-options.html
AllowLoadLocalInfile Value AllowLoadLocalInfileInPath Value Behavior true Empty string or null value All uploads are permitted. Connection options have a default value that you can override by defining the new value in the connection string (classic ... This chapter describes the full set of MySQL Connector/NET 8.0 connection ...