Enum ShowRefTarget 

pub enum ShowRefTarget<X: Extension = NoExt> {
    Empty {
        meta: Meta,
    },
    Query {
        query: Box<Query<X>>,
        meta: Meta,
    },
    Name {
        name: ObjectName,
        meta: Meta,
    },
}

The SQL show ref target forms represented by the AST.

Variants

Empty

Bare DESCRIBE or DESC, which DuckDB parses before rejecting at a later semantic stage.

Fields

meta: Meta

Source location and node identity.

Query

DESCRIBE <query> / SUMMARIZE <query> — the described query (a SELECT, PIVOT, or UNPIVOT body).

Fields

query: Box<Query<X>>

Query governed by this node.

meta: Meta

Source location and node identity.

Name

DESCRIBE <table>, SHOW <name> (SHOW databases, SHOW tables, SHOW <table>) — the named target.

Fields

name: ObjectName

Name referenced by this syntax.

meta: Meta

Source location and node identity.

Trait Implementations

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

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

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

Formats the value using the given formatter.

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

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

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

Equality operator ==.

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

Inequality operator !=.

impl<X> Serialize for ShowRefTarget<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 ShowRefTarget<X>

fn span(&self) -> Span

Return the span for this value.

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