pub struct value;

Trait Implementations§

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impl Clone for value

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fn clone(&self) -> value

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Column for value

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type Table = table

The table which this column belongs to
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const NAME: &'static str = _

The name of this column
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impl Debug for value

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

Formats the value using the given formatter. Read more
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impl Default for value

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fn default() -> value

Returns the “default value” for a type. Read more
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impl Expression for value

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type SqlType = Text

The type that this expression represents in SQL
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impl<DB> QueryFragment<DB> for valuewhere DB: Backend, <table as QuerySource>::FromClause: QueryFragment<DB>,

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fn walk_ast(&self, out: AstPass<'_, DB>) -> QueryResult<()>

Walk over this QueryFragment for all passes. Read more
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fn to_sql(&self, out: &mut <DB as Backend>::QueryBuilder) -> Result<(), Error>

Converts this QueryFragment to its SQL representation. Read more
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fn collect_binds( &self, out: &mut <DB as Backend>::BindCollector, metadata_lookup: &<DB as TypeMetadata>::MetadataLookup ) -> Result<(), Error>

Serializes all bind parameters in this query. Read more
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fn is_safe_to_cache_prepared(&self) -> Result<bool, Error>

Is this query safe to store in the prepared statement cache? Read more
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impl QueryId for value

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type QueryId = value

A type which uniquely represents Self in a SQL query. Read more
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const HAS_STATIC_QUERY_ID: bool = true

Can the SQL generated by Self be uniquely identified by its type? Read more
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fn query_id() -> Option<TypeId>

Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise. Read more
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impl<QS> AppearsOnTable<QS> for valuewhere QS: AppearsInFromClause<table, Count = Once>,

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impl Copy for value

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impl NonAggregate for value

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impl SelectableExpression<table> for value

Auto Trait Implementations§

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impl RefUnwindSafe for value

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impl Send for value

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impl Sync for value

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impl Unpin for value

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impl UnwindSafe for value

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> AsExpression<<T as Expression>::SqlType> for Twhere T: Expression,

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type Expression = T

The expression being returned
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fn as_expression(self) -> T

Perform the conversion
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impl<'a, T> AsTaggedExplicit<'a> for Twhere T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self>

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impl<'a, T> AsTaggedImplicit<'a> for Twhere T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32 ) -> TaggedParser<'a, Implicit, Self>

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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Conn, DB, T> ExecuteDsl<Conn, DB> for Twhere Conn: Connection<Backend = DB>, DB: Backend, T: QueryFragment<DB> + QueryId,

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fn execute(query: T, conn: &Conn) -> Result<usize, Error>

Execute this command
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impl<T> ExpressionMethods for Twhere T: Expression, <T as Expression>::SqlType: SingleValue,

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fn eq<T>( self, other: T ) -> Eq<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Creates a SQL = expression. Read more
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fn ne<T>( self, other: T ) -> NotEq<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Creates a SQL != expression. Read more
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fn eq_any<T>( self, values: T ) -> In<Self, <T as AsInExpression<Self::SqlType>>::InExpression>where T: AsInExpression<Self::SqlType>,

Creates a SQL IN statement. Read more
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fn ne_any<T>( self, values: T ) -> NotIn<Self, <T as AsInExpression<Self::SqlType>>::InExpression>where T: AsInExpression<Self::SqlType>,

👎Deprecated since 1.2.0: use ne_all instead
Deprecated alias for ne_all Read more
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fn ne_all<T>( self, values: T ) -> NotIn<Self, <T as AsInExpression<Self::SqlType>>::InExpression>where T: AsInExpression<Self::SqlType>,

Creates a SQL NOT IN statement. Read more
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fn is_null(self) -> IsNull<Self>

Creates a SQL IS NULL expression. Read more
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fn is_not_null(self) -> IsNotNull<Self>

Creates a SQL IS NOT NULL expression. Read more
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fn gt<T>( self, other: T ) -> Gt<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Creates a SQL > expression. Read more
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fn ge<T>( self, other: T ) -> GtEq<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Creates a SQL >= expression. Read more
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fn lt<T>( self, other: T ) -> Lt<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Creates a SQL < expression. Read more
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fn le<T>( self, other: T ) -> LtEq<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Creates a SQL <= expression. Read more
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fn between<T, U>( self, lower: T, upper: U ) -> Between<Self, And<<T as AsExpression<Self::SqlType>>::Expression, <U as AsExpression<Self::SqlType>>::Expression>>where T: AsExpression<Self::SqlType>, U: AsExpression<Self::SqlType>,

Creates a SQL BETWEEN expression using the given lower and upper bounds. Read more
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fn not_between<T, U>( self, lower: T, upper: U ) -> NotBetween<Self, And<<T as AsExpression<Self::SqlType>>::Expression, <U as AsExpression<Self::SqlType>>::Expression>>where T: AsExpression<Self::SqlType>, U: AsExpression<Self::SqlType>,

Creates a SQL NOT BETWEEN expression using the given lower and upper bounds. Read more
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fn desc(self) -> Desc<Self>

Creates a SQL DESC expression, representing this expression in descending order. Read more
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fn asc(self) -> Asc<Self>

Creates a SQL ASC expression, representing this expression in ascending order. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoSql for T

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fn into_sql<T>(self) -> Self::Expressionwhere Self: AsExpression<T> + Sized,

Convert self to an expression for Diesel’s query builder. Read more
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fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expressionwhere &'a Self: AsExpression<T>,

Convert &self to an expression for Diesel’s query builder. Read more
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impl<T> NullableExpressionMethods for Twhere T: Expression,

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fn nullable(self) -> Nullable<Self>

Converts this potentially non-null expression into one which is treated as nullable. This method has no impact on the generated SQL, and is only used to allow certain comparisons that would otherwise fail to compile. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T> TextExpressionMethods for Twhere T: Expression, <T as Expression>::SqlType: TextOrNullableText,

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fn concat<T>( self, other: T ) -> Concat<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Concatenates two strings using the || operator. Read more
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fn like<T>( self, other: T ) -> Like<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Returns a SQL LIKE expression Read more
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fn not_like<T>( self, other: T ) -> NotLike<Self, <T as AsExpression<Self::SqlType>>::Expression>where T: AsExpression<Self::SqlType>,

Returns a SQL NOT LIKE expression Read more
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<G1, G2> Within<G2> for G1where G2: Contains<G1>,

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fn is_within(&self, b: &G2) -> bool

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impl<QS, T, DB> BoxableExpression<QS, DB> for Twhere DB: Backend, T: Expression + SelectableExpression<QS> + NonAggregate + QueryFragment<DB>,