Is your feature request related to a problem or challenge?

A common usage of CASE WHEN (particularly in the TPC-DS benchmark) is to protect against divide by zero errors. For example:

CASE WHEN y > 0 THEN x / y ELSE null END

The CaseExpr implementation is quite expensive and we could replace this whole expression with a divide kernel that returns null if the right hand side is zero (Rust has a div_checked function that already provides this functionality).

arrow-rs already has the following code in arrow-array/src/arithmetic.rs, which is really close to what we need. I think we just need a version that returns an Option::None instead of an Err.

#[inline]
fn div_checked(self, rhs: Self) -> Result<Self, ArrowError> {
    if rhs.is_zero() {
        Err(ArrowError::DivideByZero)
    } else {
        self.checked_div(rhs).ok_or_else(|| {
            ArrowError::ComputeError(format!(
                "Overflow happened on: {:?} / {:?}",
                self, rhs
            ))
        })
    }
}

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