Struct mz_repr::explain::Analyses

pub struct Analyses {
    pub non_negative: Option<bool>,
    pub subtree_size: Option<usize>,
    pub arity: Option<usize>,
    pub types: Option<Option<Vec<ColumnType>>>,
    pub keys: Option<Vec<Vec<usize>>>,
    pub cardinality: Option<String>,
    pub column_names: Option<Vec<String>>,
    pub equivalences: Option<String>,
}

A container for derived analyses.

Fields

non_negative: Option<bool>

subtree_size: Option<usize>

arity: Option<usize>

types: Option<Option<Vec<ColumnType>>>

keys: Option<Vec<Vec<usize>>>

cardinality: Option<String>

column_names: Option<Vec<String>>

equivalences: Option<String>

Trait Implementations

impl Clone for Analyses

fn clone(&self) -> Analyses

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Analyses

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

Formats the value using the given formatter.

impl Default for Analyses

fn default() -> Analyses

Returns the “default value” for a type.