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https://dev.mysql.com/doc/heatwave/en/mys-hwaml-prepare-an-anomaly-detection-model.html
The data has a column, target, that has three possible values: 0 for normal, 1 for anomalous, and NULL for unlabeled. This topic describes how to prepare the data to use for two anomaly detection machine learning models: a semi-supervised anomaly ...
https://dev.mysql.com/doc/refman/8.4/en/join.html
If there is no matching row for the right table in the ON or USING part in a LEFT JOIN, a row with all columns set to NULL is used for the right table. SELECT left_tbl.* FROM { OJ left_tbl LEFT OUTER JOIN right_tbl ON left_tbl.id = right_tbl.id } ...
https://dev.mysql.com/doc/refman/8.4/en/replication-options-source.html
Attempting to set the value of either of these two variables to an integer greater than 65,535 or less than 0 causes its value to be set to 65,535 instead. Attempting to set the value of auto_increment_increment or auto_increment_offset to a ...
https://dev.mysql.com/doc/mysql-ai/9.4/en/mys-ai-aml-prepare-an-anomaly-detection-model.html
The data has a column, target, that has three possible values: 0 for normal, 1 for anomalous, and NULL for unlabeled. This topic describes how to prepare the data to use for two anomaly detection machine learning models: a semi-supervised anomaly ...
https://dev.mysql.com/doc/internals/en/com-query-response.html
NULL is sent as 0xfb everything else is converted into a string and is sent as Protocol::LengthEncodedString. Image description If it is not a valid Protocol::LengthEncodedInteger it is either a ERR_Packet or a Protocol::LOCAL_INFILE_Request. Image ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-lakehouse-table-syntax-json.html
External tables use table-level and column-level ENGINE_ATTRIBUTE options of the CREATE TABLE statement to specify the parameters needed to process data stored externally in Object Storage. CREATE EXTERNAL TABLE table_name (col_name data_type ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-js/en/working-with-sql-result-sets.html
The data set can be empty if, for example, fetchOne() returns NULL or fetchAll() returns an empty list. When you execute an SQL operation on a Session using the sql() method, an SqlResult is returned. Iterating over an SqlResult is identical to ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-python/en/working-with-sql-result-sets.html
The data set can be empty if, for example, fetchOne() returns NULL or fetchAll() returns an empty list. When you execute an SQL operation on a Session using the sql() method, an SqlResult is returned. Iterating over an SqlResult is identical to ...
https://dev.mysql.com/doc/refman/8.4/en/memory-storage-engine.html
(This is an uncommon feature for implementations of hash indexes.) Columns that are indexed can contain NULL values. To replicate this effect to replicas, the first time that the source uses a given MEMORY table after startup, it logs an event that ... The MEMORY storage engine (formerly known as HEAP) creates special-purpose tables with contents that are stored in ...
https://dev.mysql.com/doc/c-api/8.4/en/c-api-binary-log-data-structures.html
file_name The name of the binary log file to read: If file_name is NULL, the client library sets it to the empty string and sets file_name_length to 0. If file_name is not NULL, file_name_length must either be the length of the name or 0. If ... C ...