Enum InfoStatement 

pub enum InfoStatement {
    Root(bool, Option<Expr>),
    Ns(bool, Option<Expr>),
    Db(bool, Option<Expr>),
    Tb(Expr, bool, Option<Expr>),
    User(Expr, Option<Base>, bool),
    Index(Expr, Expr, bool),
}

Variants

Root(bool, Option<Expr>)

Root information

Ns(bool, Option<Expr>)

Namespace information

Db(bool, Option<Expr>)

Database information

Tb(Expr, bool, Option<Expr>)

Table information

User(Expr, Option<Base>, bool)

Index(Expr, Expr, bool)

Index information

Implementations

impl InfoStatement

pub fn read_only(&self) -> bool

Whether evaluating this statement does only reads.

INFO reads catalog metadata, but its subject and VERSION clause are expressions the statement evaluates first, so a write reaches the transaction through them.

Trait Implementations

impl Clone for InfoStatement

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InfoStatement

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

Formats the value using the given formatter.

impl Eq for InfoStatement

impl From<InfoStatement> for InfoStatement

fn from(v: InfoStatement) -> Self

Converts to this type from the input type.

impl From<InfoStatement> for InfoStatement

fn from(v: InfoStatement) -> Self

Converts to this type from the input type.

impl Hash for InfoStatement

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 InfoStatement

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for InfoStatement

impl<V: Visitor> Visit<V> for InfoStatement

fn visit(&self, this: &mut V) -> Result<(), V::Error>

impl<V: MutVisitor> VisitMut<V> for InfoStatement

fn visit_mut(&mut self, this: &mut V) -> Result<(), V::Error>