Struct MatchColumn 

pub struct MatchColumn {
    pub name: String,
    pub expr: Expr,
    pub hidden: bool,
}

Fields

name: String

expr: Expr

hidden: bool

A sort-only column materialised by an aggregating query so a non-projected ORDER BY key (a grouping key, functionally-dependent value, or aggregate) can be sorted on; the planner emits it from the Aggregate operator and drops it with a final projection before the rows are returned. Always false for user-projected columns.

Trait Implementations

impl Clone for MatchColumn

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 MatchColumn

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

Formats the value using the given formatter.

impl Eq for MatchColumn

impl Hash for MatchColumn

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MatchColumn

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for MatchColumn