What is the type casting hierarchy in mysql?

Question

Taking the following example:

WITH tbl as (
    select 1, 1e2, 1.2e-4, 1.235, null, 0b01, if(1=1, 1, 2) union
    select 1, 1e2, 1.2e-4, 1.235, null, 0b01, if