Function arrow_arith::boolean::or_kleene

pub fn or_kleene(
    left: &BooleanArray,
    right: &BooleanArray
) -> Result<BooleanArray, ArrowError>

Logical ‘or’ boolean values with Kleene logic

Behavior

This function behaves as follows with nulls:

• true or null = true
• null or true = true
• false or null = null
• null or false = null
• null or null = null

In other words, in this context a null value really means "unknown", and an unknown value ‘or’ true is always true. For a different null behavior, see function "or".

Example

let a = BooleanArray::from(vec![Some(true), Some(false), None]);
let b = BooleanArray::from(vec![None, None, None]);
let or_ab = or_kleene(&a, &b).unwrap();
assert_eq!(or_ab, BooleanArray::from(vec![Some(true), None, None]));

Fails

If the operands have different lengths