Struct InstanceLockStatement 

pub struct InstanceLockStatement {
    pub acquire: bool,
    pub meta: Meta,
}

A MySQL instance-wide backup lock statement — LOCK INSTANCE FOR BACKUP (acquire) or UNLOCK INSTANCE (release) — gated by UtilitySyntax::lock_instance.

One node for the pair, distinguished by acquire, because neither side carries any other payload (mysql sql_yacc.yy lock/unlock: both alternatives build a bare Sql_cmd_{lock,unlock}_instance): a two-struct split would add an empty node for the release half. Distinct from LockTablesStatement/UnlockTablesStatement, which take a per-table lock-kind list — the instance lock is a single server-wide DDL-blocking lock with fixed spelling on both sides, so there is nothing else to model. Both spellings are grammar-positive on mysql:8.4.10 (ER_UNSUPPORTED_PS under the PREPARE oracle — parsed, then declined by the PREPARE protocol, never ER_PARSE_ERROR).

Fields

acquire: bool

true for LOCK INSTANCE FOR BACKUP (acquire), false for UNLOCK INSTANCE (release).

meta: Meta

Source location and node identity.

Trait Implementations

impl Clone for InstanceLockStatement

fn clone(&self) -> InstanceLockStatement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InstanceLockStatement

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for InstanceLockStatement

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for InstanceLockStatement

impl Hash for InstanceLockStatement

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 InstanceLockStatement

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

Equality operator ==.

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

Inequality operator !=.

impl Render for InstanceLockStatement

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 InstanceLockStatement

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 InstanceLockStatement

fn span(&self) -> Span

Return the span for this value.

impl StructuralPartialEq for InstanceLockStatement