Struct FrequencyPrefix 

pub struct FrequencyPrefix {
    pub entries: Vec<(Value, u64)>,
    pub omitted_max: u64,
}

The values one column’s frequency synopsis lists, with a bound on everything it left out.

What Reader::frequency_prefix answers. The counts are exact, and omitted_max is how many rows any value not in the list can hold, which is zero when nothing was left out at all.

Fields

entries: Vec<(Value, u64)>

Every value the synopsis lists, with the number of rows holding it, count descending.

omitted_max: u64

How many rows the most common value outside the list holds, and zero for a complete list.

Trait Implementations

impl Clone for FrequencyPrefix

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FrequencyPrefix

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.