Enum TableFromSourceColumns

pub enum TableFromSourceColumns<T: AstInfo> {
    NotSpecified,
    Named(Vec<Ident>),
    Defined(Vec<ColumnDef<T>>),
}

CREATE TABLE .. FROM SOURCE columns specification can have 3 states: Before purification they can be NotSpecified or Named by the user to specify the column names to use. After purification they can be in any of the 3 states. For some source types we define the columns during purification and for others the columns are defined during planning based on the encoding option of the source.

Variants

NotSpecified

The user did not specify which columns to use.

Named(Vec<Ident>)

The user requested the named columns. Only compatible with source types that allow user-specified column names.

Defined(Vec<ColumnDef<T>>)

Columns defined during purification for some source types.

Trait Implementations

impl<T: Clone + AstInfo> Clone for TableFromSourceColumns<T>

fn clone(&self) -> TableFromSourceColumns<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + AstInfo> Debug for TableFromSourceColumns<T>

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

Formats the value using the given formatter.

impl<T: AstInfo, T2: AstInfo> FoldNode<T, T2> for TableFromSourceColumns<T>

type Folded = TableFromSourceColumns<T2>

fn fold<F: Fold<T, T2>>(self, folder: &mut F) -> Self::Folded

impl<T: Hash + AstInfo> Hash for TableFromSourceColumns<T>

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<T: PartialEq + AstInfo> PartialEq for TableFromSourceColumns<T>

fn eq(&self, other: &TableFromSourceColumns<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'ast, T: AstInfo> VisitMutNode<'ast, T> for TableFromSourceColumns<T>

fn visit_mut<V: VisitMut<'ast, T>>(&'ast mut self, visitor: &mut V)

impl<'ast, T: AstInfo> VisitNode<'ast, T> for TableFromSourceColumns<T>

fn visit<V: Visit<'ast, T>>(&'ast self, visitor: &mut V)

impl<T: Eq + AstInfo> Eq for TableFromSourceColumns<T>

impl<T: AstInfo> StructuralPartialEq for TableFromSourceColumns<T>