Struct leetcode_cli::cache::schemas::problems::columns::star [−][src]
pub struct 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 Expression for star
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impl Expression for star
[src]impl<DB: Backend> QueryFragment<DB> for star where
<table as QuerySource>::FromClause: QueryFragment<DB>,
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impl<DB: Backend> QueryFragment<DB> for star where
<table as QuerySource>::FromClause: QueryFragment<DB>,
[src]fn walk_ast(&self, out: AstPass<'_, DB>) -> QueryResult<()>
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fn walk_ast(&self, out: AstPass<'_, DB>) -> QueryResult<()>
[src]Walk over this QueryFragment
for all passes. Read more
fn to_sql(&self, out: &mut <DB as Backend>::QueryBuilder) -> Result<(), Error>
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fn to_sql(&self, out: &mut <DB as Backend>::QueryBuilder) -> Result<(), Error>
[src]Converts this QueryFragment
to its SQL representation. Read more
fn collect_binds(
&self,
out: &mut <DB as Backend>::BindCollector,
metadata_lookup: &<DB as TypeMetadata>::MetadataLookup
) -> Result<(), Error>
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fn collect_binds(
&self,
out: &mut <DB as Backend>::BindCollector,
metadata_lookup: &<DB as TypeMetadata>::MetadataLookup
) -> Result<(), Error>
[src]Serializes all bind parameters in this query. Read more
impl AppearsOnTable<table> for star
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impl Copy for star
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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> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> Instrument for T
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impl<T> Instrument for T
[src]fn instrument(self, span: Span) -> Instrumented<Self>
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fn instrument(self, span: Span) -> Instrumented<Self>
[src]Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
fn in_current_span(self) -> Instrumented<Self>
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fn in_current_span(self) -> Instrumented<Self>
[src]impl<T> Instrument for T
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impl<T> Instrument for T
[src]fn instrument(self, span: Span) -> Instrumented<Self>
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fn instrument(self, span: Span) -> Instrumented<Self>
[src]Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
fn in_current_span(self) -> Instrumented<Self>
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fn in_current_span(self) -> Instrumented<Self>
[src]impl<T> IntoSql for T
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impl<T> IntoSql for T
[src]fn into_sql<T>(self) -> Self::Expression where
Self: AsExpression<T>,
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fn into_sql<T>(self) -> Self::Expression where
Self: AsExpression<T>,
[src]Convert self
to an expression for Diesel’s query builder. Read more
fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression where
&'a Self: AsExpression<T>,
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fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression where
&'a Self: AsExpression<T>,
[src]Convert &self
to an expression for Diesel’s query builder. Read more
impl<T> NullableExpressionMethods for T where
T: Expression,
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impl<T> NullableExpressionMethods for T where
T: Expression,
[src]impl<T> Same<T> for T
impl<T> Same<T> for T
type Output = T
type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,