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https://dev.mysql.com/doc/heatwave/en/mys-hw-genai-generate-embeddings.html
This section describes how to generate vector embeddings using the ML_EMBED_ROW MySQL HeatWave GenAI routine. Vector embeddings are a numerical representation of the text that capture the semantics of the data and relationships to other data. You ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-insert-select.html
row *************************** id: 1 select_type: NONE table: NULL partitions: NULL type: NULL possible_keys: NULL key: NULL key_len: NULL ref: NULL rows: NULL filtered: NULL Extra: Using secondary engine RAPID. This topic describes how to run a ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-run-query.html
row *************************** id: 1 select_type: NONE table: NULL partitions: NULL type: NULL possible_keys: NULL key: NULL key_len: NULL ref: NULL rows: NULL filtered: NULL Extra: Using secondary engine RAPID. This topic describes how to use the ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-using-views.html
row *************************** id: 1 select_type: NONE table: NULL partitions: NULL type: NULL possible_keys: NULL key: NULL key_len: NULL ref: NULL rows: NULL filtered: NULL Extra: Using secondary engine RAPID. This topic describes how to run ...
https://dev.mysql.com/doc/refman/8.4/en/alter-table-examples.html
row *************************** Table: t1 Create Table: CREATE TABLE `t2` ( `c1` int(11) DEFAULT NULL ) /*!50100 TABLESPACE ts_1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci 1 row in set (0.01 sec) To change ...For NDB tables, it is also possible to change the storage type used for a table or ...
https://dev.mysql.com/doc/refman/8.4/en/constant-folding-optimization.html
Consider the table created by the following statement: CREATE TABLE t (c TINYINT UNSIGNED NOT NULL); The WHERE condition in the query SELECT * FROM t WHERE c < 256 contains the integral constant 256 which is out of range for a TINYINT UNSIGNED ...
https://dev.mysql.com/doc/refman/8.4/en/cost-model.html
Any non-NULL cost estimate specified in the tables takes precedence over the corresponding compiled-in default cost constant. Any NULL estimate indicates to the optimizer to use the compiled-in default. It is also easy to revert to a default by ...
https://dev.mysql.com/doc/refman/8.4/en/create-table-generated-columns.html
If the column is also declared as NOT NULL, attempting to insert NULL is explicitly rejected with ER_BAD_NULL_ERROR. Generated column definitions have this syntax: col_name data_type [GENERATED ALWAYS] AS (expr) [VIRTUAL | STORED] [NOT NULL | NULL] ...Values of a generated column are computed from an expression included in the column ...
https://dev.mysql.com/doc/refman/8.4/en/example-auto-increment.html
For example: INSERT INTO animals (id,name) VALUES(0,'groundhog'); If the column is declared NOT NULL, it is also possible to assign NULL to the column to generate sequence numbers. For example: INSERT INTO animals (id,name) VALUES(NULL,'squirrel'); ...You can also explicitly assign 0 to the column to generate sequence numbers, unless the NO_AUTO_VALUE_ON_ZERO SQL mode is ...
https://dev.mysql.com/doc/refman/8.4/en/group-by-functional-dependence.html
A UNIQUE index over a NOT NULL column could be used instead of a primary key and the same functional dependence would apply. As with the previous example, a UNIQUE key over NOT NULL columns could be used instead of a primary key. If in the join ...