table('group_buy_lb_coupons', array('id' => true, 'primary_key' => ['id'], 'engine' => 'InnoDB', 'comment' => '拼团裂变优惠券表')) ->addColumn('group_buy_lb_activity_id', 'integer', array('limit' => 11, 'signed' => false, 'default' => 0, 'comment' => '拼团裂变活动ID')) ->addColumn('coupon_id', 'integer',array('limit' => 10, 'signed' => false, 'default'=> 0,'comment'=>'优惠券ID')) ->addColumn('create_time', 'integer', array('limit' => 10,'signed' => false, 'default' => 0, 'comment' => '创建时间')) ->addColumn('update_time', 'integer', array('limit' => 10,'signed' => false, 'default' => 0, 'comment' => '更新时间')) ->create(); } }