src/Query.php
protected function _render_set_fields()
    {
        // will be joined for output
        $ret = [];

        if ($this->args['set']) {
            foreach ($this->args['set'] as list($field/*, $value*/)) {
                $field = $this->_consume($field, 'escape');

                $ret[] = $field;
            }
        }

        return implode(',', $ret);
    }
protected function _render_set_fields()
    {
        // will be joined for output
        $ret = [];

        if ($this->args['set']) {
            foreach ($this->args['set'] as list($field/*, $value*/)) {
                $field = $this->_consume($field, 'escape');

                $ret[] = $field;
            }
        }

        return implode(',', $ret);
    }
Renders [set_fields] for INSERT.

@return string rendered SQL chunk