Is it true or false that a development version of a PDT will always persist for a maximum of 24 hours?

The statement that a development version of a Persistent Derived Table (PDT) will always persist for a maximum of 24 hours is true. In Looker, when you create a PDT in development mode, it is intended for testing and development purposes, which is why it has this time limitation. The system automatically cleans up these temporary tables after they reach the 24-hour mark, ensuring that they do not consume unnecessary resources.

This behavior contrasts with production PDTs, which can be configured to persist longer based on needs and usage scenarios. Since development PDTs are primarily for testing and development, the 24-hour limit serves as a safeguard to manage performance and resource utilization effectively. Thus, the reasoning behind this design is to encourage users to move code to production when it is ready, preventing clutter from unneeded temporary tables.