How does SQL Assistant gather view datatypes?

Tools & Utilities
Teradata Employee

How does SQL Assistant gather view datatypes?

Hello all,

We are trying to create metadata for our business users by gathering the data types for each column in a view.   I understand that there is the type function, but out of curiosity, does anyone know how or has the SQL Assistant code to understand how SQL Assistant returns the VIEW Column Data Type information so quickly?

Thanks,

Tony