Enum ProjectionTarget 

pub enum ProjectionTarget {
    Column(String),
    Internal(InternalColumnRef),
}

Identity assigned to one projection result. SQL columns participate in ordinary name binding and wildcard expansion; internal attributes are executor-only resjunk slots addressed structurally.

Variants

Column(String)

Internal(InternalColumnRef)

Trait Implementations

impl Clone for ProjectionTarget

fn clone(&self) -> ProjectionTarget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProjectionTarget

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

Formats the value using the given formatter.

impl Eq for ProjectionTarget

impl From<&str> for ProjectionTarget

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<String> for ProjectionTarget

fn from(value: String) -> Self

Converts to this type from the input type.

impl Hash for ProjectionTarget

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 ProjectionTarget

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ProjectionTarget