Method is_exact

datafusion/common/src/stats.rs:89–95

Returns `Some(true)` if we have an exact value, `Some(false)` if we have an inexact value, and `None` if there is no value.

(&self)

    /// Returns `Some(true)` if we have an exact value, `Some(false)` if we
    /// have an inexact value, and `None` if there is no value.
    pub fn is_exact(&self) -> Option<bool> {
        match self {
            Precision::Exact(_) => Some(true),
            Precision::Inexact(_) => Some(false),
            _ => None,
        }
    }

    /// Returns the maximum of two (possibly inexact) values, conservatively
    /// propagating exactness information. If one of the input values is