berkaysynnada commented on code in PR #11584:
URL: https://github.com/apache/datafusion/pull/11584#discussion_r1687531392
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datafusion/expr/src/interval_arithmetic.rs:
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@@ -332,6 +332,46 @@ impl Interval {
Ok(Self::new(unbounded_endpoint.clone(), unbounded_endpoint))
}
+ /// Creates an interval between -∞ to ∞.
+ pub fn make_infinity_interval(data_type: &DataType) -> Result<Self> {
Review Comment:
We use `ScalarValue::Float(None)` for infinite bounds by convention. Even if
you give Float(Some(f::INF)) or Float(Some(f::NaN)), they are converted to
Float(None)'s during interval creation. We had given such a decision to have
unique representation of unboundedness. You can check the details here:
https://github.com/apache/datafusion/blob/deef834e7adfd859414448ab4da461e2d4eabb9e/datafusion/expr/src/interval_arithmetic.rs#L178
I recommend here to use `make_unbounded` API with floating types to not
break this convention.
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