pub struct Many<ST, I> {
    pub values: Vec<I>,
    /* private fields */
}
Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.
Expand description

Query dsl node for a IN (values) clause containing a variable number of bind values.

Third party backend can customize the QueryFragment implementation of this query dsl node via SqlDialect::ArrayComparison. The default implementation does generate one bind per value in the values field.

Diesel provides an optimized implementation for Postgresql like database systems that bind all values with one bind value of the type Array<ST> instead.

Fields

values: Vec<I>

The values contained in the IN (values) clause

Trait Implementations

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
The type that this expression represents in SQL
Returns true if self represents an empty collection Otherwise false is returned. Read more
Walk over this QueryFragment for all passes. Read more
Converts this QueryFragment to its SQL representation. Read more
Serializes all bind parameters in this query. Read more
Is this query safe to store in the prepared statement cache? Read more
Does walking this AST have any effect?
A type which uniquely represents Self in a SQL query. Read more
Can the SQL generated by Self be uniquely identified by its type? Read more
Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise. Read more
Is this expression aggregate? Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
The expression being returned
Perform the conversion
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
Execute this command

Returns the argument unchanged.

Calls U::from(self).

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

Convert self to an expression for Diesel’s query builder. Read more
Convert &self to an expression for Diesel’s query builder. Read more
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.