The tables you intend to query must be loaded in HeatWave. If a query accesses a table that is not loaded, the query is not offloaded to HeatWave for processing.
Before loading data, take time to identify the tables that your queries access. For example, if your queries access data in a particular schema exclusively, load the tables belonging to that schema, or, if your queries access a few particular tables, load those tables into HeatWave.
If using the Auto Parallel Load utility, you can specify the particular schemas and tables you want to load. See Section 4.1, “Auto Parallel Load”.