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MySQL HeatWave User Guide  /  ...  /  CREATE TABLE ... SELECT Statements

2.3.7 CREATE TABLE ... SELECT Statements

The SELECT query of a CREATE TABLE ... SELECT statement is offloaded to HeatWave for execution, and the table is created on the MySQL DB System. Offloading the SELECT query to HeatWave reduces CREATE TABLE ... SELECT execution time in cases where the SELECT query is long running and complex. SELECT queries that produce large result sets do not benefit from this feature due to the large number of DML operations performed on the MySQL DB system instance.

The SELECT table must be loaded in HeatWave. For example, the following statement selects data from the orders table on HeatWave and inserts the result set into the orders2 table created on the MySQL DB System:

mysql> CREATE TABLE orders2 SELECT * FROM orders;

The SELECT portion of the CREATE TABLE ... SELECT statement is subject to the same HeatWave requirements and limitations as regular SELECT queries.