The function is to be executed inline from an SQL request rather than as an independent function.
This clause is mandatory.
The TYPE 1 option indicates that the SQL UDF executes based on the environmental settings of the system. A system that has different settings, might produce different results.
When an SQL UDF is created using the inline option, you can still specify how it should work at the time it is created, depending on the environment in effect for the creator when the function is created and the environment for the caller when it is invoked. If the two environments differ, then the outcome of calling the function can still differ.