Struct ViewColumn 

pub struct ViewColumn {
    pub name: Identifier,
    pub column_type: Option<ColumnType>,
    pub comment: Option<String>,
}

A single named column in a view or materialized view.

column_type is None while unresolved — when ViewColumn is built from an explicit alias list during parsing, the type requires resolving the SELECT body against the catalog. The AST-canonicalization pass fills it in. Resolution is enforced by Catalog::canonicalize: a None that survives to canon is an error, so a serialized catalog never carries an unresolved column type. When built from the live catalog the type is always Some.

Fields

name: Identifier

Column name as it appears in the view definition (or is aliased).

column_type: Option<ColumnType>

Resolved data type of the column, or None while unresolved.

comment: Option<String>

Optional COMMENT ON COLUMN text.

Trait Implementations

impl Clone for ViewColumn

fn clone(&self) -> ViewColumn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewColumn

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ViewColumn

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ViewColumn

impl Hash for ViewColumn

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 ViewColumn

fn eq(&self, other: &ViewColumn) -> 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 Serialize for ViewColumn

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ViewColumn