pub struct Bool;
Expand description
The boolean SQL type.
On backends without a native boolean type, this is emulated with the smallest supported integer.
ToSql
impls
FromSql
impls
Trait Implementations§
source§impl<'expr> AsExpression<Bool> for &'expr bool
impl<'expr> AsExpression<Bool> for &'expr bool
§type Expression = Bound<Bool, &'expr bool>
type Expression = Bound<Bool, &'expr bool>
The expression being returned
source§fn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
Perform the conversion
source§impl<'expr2, 'expr> AsExpression<Bool> for &'expr2 &'expr bool
impl<'expr2, 'expr> AsExpression<Bool> for &'expr2 &'expr bool
§type Expression = Bound<Bool, &'expr2 &'expr bool>
type Expression = Bound<Bool, &'expr2 &'expr bool>
The expression being returned
source§fn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
Perform the conversion
source§impl AsExpression<Bool> for bool
impl AsExpression<Bool> for bool
§type Expression = Bound<Bool, bool>
type Expression = Bound<Bool, bool>
The expression being returned
source§fn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
Perform the conversion
source§impl HasSqlType<Bool> for Pg
impl HasSqlType<Bool> for Pg
source§fn metadata(_: &mut Self::MetadataLookup) -> PgTypeMetadata
fn metadata(_: &mut Self::MetadataLookup) -> PgTypeMetadata
Fetch the metadata for the given type Read more
source§impl QueryId for Bool
impl QueryId for Bool
source§const HAS_STATIC_QUERY_ID: bool = true
const HAS_STATIC_QUERY_ID: bool = true
Can the SQL generated by
Self
be uniquely identified by its type? Read moreimpl BoolOrNullableBool for Bool
impl Copy for Bool
impl SingleValue for Bool
Auto Trait Implementations§
impl RefUnwindSafe for Bool
impl Send for Bool
impl Sync for Bool
impl Unpin for Bool
impl UnwindSafe for Bool
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<ST, U, DB> CompatibleType<U, DB> for STwhere
DB: Backend,
ST: SqlType + SingleValue,
U: FromSqlRow<ST, DB>,
impl<ST, U, DB> CompatibleType<U, DB> for STwhere DB: Backend, ST: SqlType + SingleValue, U: FromSqlRow<ST, DB>,
source§impl<T> IntoNotNullable for Twhere
T: SqlType<IsNull = NotNull>,
impl<T> IntoNotNullable for Twhere T: SqlType<IsNull = NotNull>,
§type NotNullable = T
type NotNullable = T
The not nullable representation of this type. Read more
source§impl<T> IntoNullable for Twhere
T: SqlType<IsNull = NotNull> + SingleValue,
impl<T> IntoNullable for Twhere T: SqlType<IsNull = NotNull> + SingleValue,
source§impl<T> IntoSql for T
impl<T> IntoSql for T
source§fn into_sql<T>(self) -> AsExprOf<Self, T>where
Self: AsExpression<T> + Sized,
T: SqlType + TypedExpressionType,
fn into_sql<T>(self) -> AsExprOf<Self, T>where Self: AsExpression<T> + Sized, T: SqlType + TypedExpressionType,
Convert
self
to an expression for Diesel’s query builder. Read moresource§fn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T>where
&'a Self: AsExpression<T>,
T: SqlType + TypedExpressionType,
fn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T>where &'a Self: AsExpression<T>, T: SqlType + TypedExpressionType,
Convert
&self
to an expression for Diesel’s query builder. Read more