Struct IndexColumnDef 

pub struct IndexColumnDef {
    pub expr: IndexExpr,
    pub direction: Option<OrderDir>,
    pub nulls: Option<NullsOrder>,
    pub opclass: Option<String>,
    pub collation: Option<String>,
}

A column or expression in an index.

Fields

expr: IndexExpr

direction: Option<OrderDir>

nulls: Option<NullsOrder>

opclass: Option<String>

collation: Option<String>

Implementations

impl IndexColumnDef

pub fn column(name: impl Into<String>) -> Self

pub fn expression(expr: Expr) -> Self

pub fn asc(self) -> Self

pub fn desc(self) -> Self

pub fn nulls_first(self) -> Self

pub fn nulls_last(self) -> Self

Trait Implementations

impl Clone for IndexColumnDef

fn clone(&self) -> IndexColumnDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexColumnDef

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

Formats the value using the given formatter.