Struct AlterDatabase 

pub struct AlterDatabase {
    pub if_exists: bool,
    pub name: Ident,
    pub action: AlterDatabaseAction,
    pub meta: Meta,
}

An ALTER DATABASE [IF EXISTS] <name> SET ALIAS TO <alias> statement (DuckDB), gated by StatementDdlGates::alter_database.

DuckDB’s sole AlterDatabaseStmt production re-aliases an attached database (third_party/libpg_query/grammar/statements/alter_database.y at the pinned v1.5.4 commit 08e34c447b). The grammar reduces SET <ident> TO <name>, but its action rejects any keyword but ALIAS, so only SET ALIAS TO is a parse-accept (engine-measured: SET FOO TO is a syntax error, and ALTER DATABASE d RENAME TO e is likewise a syntax error — DuckDB has no RENAME form for a database). The change is held in an AlterDatabaseAction enum so a sibling dialect (MySQL’s charset/collation ALTER DATABASE) can add its own action variants without reshaping this node.

Fields

if_exists: bool

Whether the IF EXISTS existence guard was present in the source.

name: Ident

The database name.

action: AlterDatabaseAction

The change applied to the database.

meta: Meta

Source location and node identity.

Trait Implementations

impl Clone for AlterDatabase

fn clone(&self) -> AlterDatabase

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AlterDatabase

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AlterDatabase

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for AlterDatabase

impl Hash for AlterDatabase

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 AlterDatabase

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

Equality operator ==.

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

Inequality operator !=.

impl Render for AlterDatabase

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 AlterDatabase

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 AlterDatabase

fn span(&self) -> Span

Return the span for this value.

impl StructuralPartialEq for AlterDatabase