[−][src]Struct rebuilderd::schema::builds::columns::star
Represents table_name.*
, which is sometimes needed for
efficient count queries. It cannot be used in place of
all_columns
, and has a SqlType
of ()
to prevent it
being used that way
Trait Implementations
impl AppearsOnTable<table> for star
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impl Clone for star
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impl Copy for star
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impl Debug for star
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impl Expression for star
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impl<DB: Backend> QueryFragment<DB> for star where
<table as QuerySource>::FromClause: QueryFragment<DB>,
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<table as QuerySource>::FromClause: QueryFragment<DB>,
pub fn walk_ast(&self, out: AstPass<'_, DB>) -> QueryResult<()>
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pub fn to_sql(
&self,
out: &mut <DB as Backend>::QueryBuilder
) -> Result<(), Error>
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&self,
out: &mut <DB as Backend>::QueryBuilder
) -> Result<(), Error>
pub fn collect_binds(
&self,
out: &mut <DB as Backend>::BindCollector,
metadata_lookup: &<DB as TypeMetadata>::MetadataLookup
) -> Result<(), Error>
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&self,
out: &mut <DB as Backend>::BindCollector,
metadata_lookup: &<DB as TypeMetadata>::MetadataLookup
) -> Result<(), Error>
pub fn is_safe_to_cache_prepared(&self) -> Result<bool, Error>
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impl SelectableExpression<table> for star
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Auto Trait Implementations
impl RefUnwindSafe for star
impl Send for star
impl Sync for star
impl Unpin for star
impl UnwindSafe for star
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> IntoSql for T
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pub fn into_sql<T>(self) -> Self::Expression where
Self: AsExpression<T>,
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Self: AsExpression<T>,
pub fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression where
&'a Self: AsExpression<T>,
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&'a Self: AsExpression<T>,
impl<T> NullableExpressionMethods for T where
T: Expression,
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T: Expression,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,