Struct ColumnDef 

pub struct ColumnDef<X: Extension = NoExt> {
    pub name: Ident,
    pub data_type: Option<DataType<X>>,
    pub storage: Option<Box<Ident>>,
    pub compression: Option<Box<Ident>>,
    pub constraints: ThinVec<ColumnConstraint<X>>,
    pub meta: Meta,
}

An SQL column def.

Fields

name: Ident

Name referenced by this syntax.

data_type: Option<DataType<X>>

The column’s declared type, or None for a SQLite typeless column (CREATE TABLE t (a, b)): SQLite’s flexible typing lets a column omit its type entirely (the column then takes BLOB affinity). Every other dialect requires a type, so the omission is gated for acceptance by ColumnDefinitionSyntax::typeless_column_definitions — off elsewhere, where a missing type surfaces as a clean parse error. The omitted and written forms round-trip distinctly (an Option, not a synthesized default), so a downstream converter sees exactly what the source declared.

storage: Option<Box<Ident>>

The per-column STORAGE {<strategy> | DEFAULT} clause (PostgreSQL): the column’s on-disk storage strategy (PLAIN / EXTERNAL / EXTENDED / MAIN, or the DEFAULT keyword). It is a fixed-position clause in PostgreSQL’s columnDef grammar — after the type and before both compression and the constraints (ColId Typename [STORAGE …] [COMPRESSION …] ColQualList) — so a STORAGE after a constraint, or after COMPRESSION, is a raw-parse error. The value is an open name, not a closed enum: PostgreSQL’s grammar is STORAGE {ColId | DEFAULT} and validates the strategy word at analysis, out of this parser’s layer (STORAGE bogus is engine-measured accepted at raw parse), so any single (optionally quoted) identifier — or the DEFAULT keyword, interned as written — rides here as an Ident, boxed as the cold clause it is (see compression). None when unwritten. Gated for acceptance by ColumnDefinitionSyntax::column_storage — off elsewhere, where the STORAGE keyword surfaces as a clean parse error.

compression: Option<Box<Ident>>

The per-column COMPRESSION <method> clause (PostgreSQL): the compression method for the column’s TOAST-able values (pglz, lz4, or the DEFAULT keyword). Like storage a fixed-position clause with the same open {ColId | DEFAULT} value grammar — after the type and storage, before the constraints — so a COMPRESSION after a constraint or before STORAGE is a raw-parse error, while a qualified schema.method is one too (the value is a single identifier). PostgreSQL validates the specific method name at a later stage, out of this parser’s layer. None when unwritten. The name is boxed to keep this cold clause from widening the warm, vec-embedded ColumnDef (the box/inline budget — a wide table holds many ColumnDefs and COMPRESSION is rarely written). Gated for acceptance by the same ColumnDefinitionSyntax::column_storage flag as STORAGE (the two physical-storage attributes travel together).

constraints: ThinVec<ColumnConstraint<X>>

constraints in source order.

meta: Meta

Source location and node identity.

Trait Implementations

impl<X: Clone + Extension> Clone for ColumnDef<X>

fn clone(&self) -> ColumnDef<X>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<X: Debug + Extension> Debug for ColumnDef<X>

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

Formats the value using the given formatter.

impl<'de, X> Deserialize<'de> for ColumnDef<X>

where X: Deserialize<'de> + Extension,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<X: Eq + Extension> Eq for ColumnDef<X>

impl<X: Hash + Extension> Hash for ColumnDef<X>

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<X: PartialEq + Extension> PartialEq for ColumnDef<X>

fn eq(&self, other: &ColumnDef<X>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<X: Extension + Render> Render for ColumnDef<X>

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

Return the render for this value.

fn operand_binding_power(&self) -> Option<BindingPower>

The binding power this node contributes when it appears as an operand, or None (the default) for a self-delimiting node — an atom, call, or constructor — that never needs parentheses.

impl<X> Serialize for ColumnDef<X>

where X: Serialize + Extension,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<X: Extension> Spanned for ColumnDef<X>

fn span(&self) -> Span

Return the span for this value.

impl<X: PartialEq + Extension> StructuralPartialEq for ColumnDef<X>