src/QueryBuilder.php
public function select($columns = ['*'])
    {
        parent::select($columns);

        $this->columns = $this->qualifyColumns($this->columns);

        return $this;
    }
public function select($columns = ['*'])
    {
        parent::select($columns);

        $this->columns = $this->qualifyColumns($this->columns);

        return $this;
    }
Set the columns to be selected.

@param  array|mixed  $columns
@return $this