/// The number of distinct logical values in this column encoding.
The number of distinct logical values in this column encoding.
The number of distinct logical values in this column encoding .
pub fn cardinality(&self) -> u32 {
        match &self {
            Self::RleDictionary(c) => c.cardinality(),
            Self::Dictionary(c) => c.cardinality(),
        }
    }
pub fn cardinality ( & self ) -> u32 { match & self { Self :: RleDictionary ( c ) => c . cardinality ( ) , Self :: Dictionary ( c ) => c . cardinality ( ) , } }
The number of distinct logical values in this column encoding.
The number of distinct logical values in this column encoding .
&self