Constructs a Query object.
Drupal\Core\Database\Connection $connection: Database connection object.
array $options: Array of query options.
Overrides Query::__construct
public function __construct($table, $alias = NULL, Connection $connection, $options = array()) {
$options['return'] = Database::RETURN_STATEMENT;
parent::__construct($connection, $options);
$conjunction = isset($options['conjunction']) ? $options['conjunction'] : 'AND';
$this->where = new Condition($conjunction);
$this->having = new Condition($conjunction);
$this
->addJoin(NULL, $table, $alias);
}