Struct UseStatement 

pub struct UseStatement {
    pub name: ObjectName,
    pub meta: Meta,
}

A USE <schema> (MySQL) / USE <catalog> [. <schema>] (DuckDB) catalog/schema-switch statement (gated by UtilitySyntax::use_statement).

Sets the default catalog and schema for subsequent unqualified names — DuckDB’s engine implements it as a SET schema, MySQL’s as SQLCOM_CHANGE_DB, but syntactically it is its own statement. The name arity is dialect data gated by UtilitySyntax::use_qualified_name: DuckDB accepts USE db and USE db.schema but rejects a three-part USE a.b.c at parse time (Expected "USE database" or "USE database.schema"), while MySQL’s USE ident takes a single unqualified schema and ER_PARSE_ERRORs any dotted name (engine-measured on mysql:8) — so this holds an ObjectName of one or two Idents and the parser enforces whichever bound the dialect does. Under UtilitySyntax::use_string_literal_name DuckDB also admits a single-part Sconst target (USE 'n' / E'n' / $$n$$), folded into a single-quoted Ident so the quotes round-trip. Non-generic, like DetachStatement: a qualified name carries no expressions or extension nodes.

Fields

name: ObjectName

Name referenced by this syntax.

meta: Meta

Source location and node identity.

Trait Implementations

impl Clone for UseStatement

fn clone(&self) -> UseStatement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UseStatement

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for UseStatement

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for UseStatement

impl Hash for UseStatement

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 UseStatement

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

Equality operator ==.

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

Inequality operator !=.

impl Render for UseStatement

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 Serialize for UseStatement

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Spanned for UseStatement

fn span(&self) -> Span

Return the span for this value.

impl StructuralPartialEq for UseStatement