You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: functions.rs
    path of file: ./repos/diesel/diesel/src/query_builder
    
    the code of the file until where you have to start completion: use super::delete_statement::DeleteStatement;
use super::distinct_clause::NoDistinctClause;
use super::insert_statement::{Insert, InsertOrIgnore, Replace};
use super::select_clause::SelectClause;
use super::{
    AsQuery, IncompleteInse
    
/// # fn main() {
/// #     use schema::users::dsl::*;
/// #     let connection = &mut establish_connection();
/// let updated_row = diesel::update(users.filter(id.eq(1)))
///     .set(name.eq("James"))
///     .get_result(connection);
/// // On backends that support it, you can call `get_result` instead of `execute`
/// // to have `RETURNING *` automatically appended to the query. Alternatively, you
/// // can explicitly return an expression by using the `returning` method before
/// // getting the result.
/// assert_eq!(Ok((1, "James".to_string())), updated_row);
/// # }