Struct ColumnStats 

pub struct ColumnStats {
    pub name: String,
    pub distinct_count: u64,
    pub null_count: u64,
    pub min_value: Option<String>,
    pub max_value: Option<String>,
    pub has_index: bool,
}

Statistics about a column

Fields

name: String

Column name

distinct_count: u64

Number of distinct values

null_count: u64

Null count

min_value: Option<String>

Minimum value (if orderable)

max_value: Option<String>

Maximum value (if orderable)

has_index: bool

Has index

Trait Implementations

impl Clone for ColumnStats

fn clone(&self) -> ColumnStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnStats

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

Formats the value using the given formatter.

impl Default for ColumnStats

fn default() -> ColumnStats

Returns the “default value” for a type.