pub fn has_any_non_null_value(&self) -> bool {
        if !self.contains_null() {
            return true;
        }

        // If there is more than one dictionary entry then there is a non-null
        // value in the column.
        self.entries.len() > 1
    }
/// Determines if the column contains at least one non-null value.
Determines if the column contains at least one non-null value.
Determines if the column contains at least one non - null value .
pub fn has_any_non_null_value(&self) -> bool {
        if !self.contains_null() {
            return true;
        }
        // If there is more than one dictionary entry then there is a non-null
        // value in the column.
        self.entries.len() > 1
    }
pub fn has_any_non_null_value ( & self ) -> bool { if ! self . contains_null ( ) { return true ; } // If there is more than one dictionary entry then there is a non-null // value in the column. self . entries . len ( ) > 1 }
Determines if the column contains at least one non-null value.
Determines if the column contains at least one non - null value .
&self
&self