pub fn column_range(&self) -> Option<(String, String)> {
        match self {
            Self::RleDictionary(enc) => match (enc.column_min(), enc.column_max()) {
                (None, None) => None,
                (Some(min), Some(max)) => Some((min.to_owned(), max.to_owned())),
                (min, max) => panic!("invalid column range: ({:?}, {:?})", min, max),
            },
            Self::Dictionary(enc) => match (enc.column_min(), enc.column_max()) {
                (None, None) => None,
                (Some(min), Some(max)) => Some((min.to_owned(), max.to_owned())),
                (min, max) => panic!("invalid column range: ({:?}, {:?})", min, max),
            },
        }
    }
/// The lexicographical min and max values in the column.
The lexicographical min and max values in the column.
The lexicographical min and max values in the column .
pub fn column_range(&self) -> Option<(String, String)> {
        match self {
            Self::RleDictionary(enc) => match (enc.column_min(), enc.column_max()) {
                (None, None) => None,
                (Some(min), Some(max)) => Some((min.to_owned(), max.to_owned())),
                (min, max) => panic!("invalid column range: ({:?}, {:?})", min, max),
            },
            Self::Dictionary(enc) => match (enc.column_min(), enc.column_max()) {
                (None, None) => None,
                (Some(min), Some(max)) => Some((min.to_owned(), max.to_owned())),
                (min, max) => panic!("invalid column range: ({:?}, {:?})", min, max),
            },
        }
    }
pub fn column_range ( & self ) -> Option < ( String , String ) > { match self { Self :: RleDictionary ( enc ) => match ( enc . column_min ( ) , enc . column_max ( ) ) { ( None , None ) => None , ( Some ( min ) , Some ( max ) ) => Some ( ( min . to_owned ( ) , max . to_owned ( ) ) ) , ( min , max ) => panic ! ( " " min max ) , } , Self :: Dictionary ( enc ) => match ( enc . column_min ( ) , enc . column_max ( ) ) { ( None , None ) => None , ( Some ( min ) , Some ( max ) ) => Some ( ( min . to_owned ( ) , max . to_owned ( ) ) ) , ( min , max ) => panic ! ( " " min max ) , } , } }
The lexicographical min and max values in the column.
The lexicographical min and max values in the column .
&self
&self