Valid input for boolean data type

[Josh]

Hi,

What are all the valid values that can be assigned to the boolean data type?

I've found that these work: 1, 0, t, f, true, false, 't', 'f', 'true' and 'false'.

Are there any others?

I want to make sure that data I am loading doesn't incorrectly set a boolean values to true or false if there is unexpected input data.