AcceptsThe name of a datagroup defined in the model file
datagroup_trigger lets you specify the datagroup to use as a caching policy for the derived table. The datagroup itself is defined in the model file using the
datagroup_trigger parameter to a derived table makes the derived table a persistent derived table (PDT). The table is written into a scratch schema on your database and regenerated as specified by the
If you use
datagroup_trigger for your derived table, you don’t need to use the
persist_for parameters. If you do, you will get a warning in the Looker IDE, and only the
datagroup_trigger will be used.
Create a persistent native derived table called
customer_orders that is rebuilt when triggered by the datagroup named
customer_orders persistent derived table based on a SQL query that is rebuilt when triggered by the datagroup called
If you have PDTs that are dependent on other PDTs, be careful not to specify incompatible datagroup caching policies.