pub struct CChar;
Available on crate feature
postgres_backend
only.Expand description
The "char"
SQL type. This is a PostgreSQL specific type. Used for e.g. setweight. Do not use in user tables.
ToSql
impls
FromSql
impls
Trait Implementations§
source§impl<'expr> AsExpression<CChar> for &'expr u8
impl<'expr> AsExpression<CChar> for &'expr u8
§type Expression = Bound<CChar, &'expr u8>
type Expression = Bound<CChar, &'expr u8>
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<CChar> for &'expr2 &'expr u8
impl<'expr2, 'expr> AsExpression<CChar> for &'expr2 &'expr u8
§type Expression = Bound<CChar, &'expr2 &'expr u8>
type Expression = Bound<CChar, &'expr2 &'expr u8>
The expression being returned
source§fn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
Perform the conversion
source§impl AsExpression<CChar> for u8
impl AsExpression<CChar> for u8
§type Expression = Bound<CChar, u8>
type Expression = Bound<CChar, u8>
The expression being returned
source§fn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
Perform the conversion
source§impl HasSqlType<CChar> for Pg
impl HasSqlType<CChar> 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 CChar
impl QueryId for CChar
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 Copy for CChar
impl SingleValue for CChar
Auto Trait Implementations§
impl RefUnwindSafe for CChar
impl Send for CChar
impl Sync for CChar
impl Unpin for CChar
impl UnwindSafe for CChar
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<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