Enum ColumnNaming 

pub enum ColumnNaming {
    AsWritten,
    JoinRow,
    OutputRow,
}

How a column reference to a relation of the scope names its field in the rows the clause reads.

Variants

AsWritten

The reference keeps the qualifier it is written with.

JoinRow

The rows are a join’s merged rows, keyed qualifier.column. Every reference carries its owning relation’s row qualifier.

OutputRow

The rows are a join aggregate’s output rows, keyed by bare column name. Every reference drops its relation qualifier.

Trait Implementations

impl Clone for ColumnNaming

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ColumnNaming

impl Debug for ColumnNaming

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

Formats the value using the given formatter.

impl Default for ColumnNaming

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ColumnNaming

impl PartialEq for ColumnNaming

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ColumnNaming