新增String类型字段:
db.amazon_best_seller_listing.update({}, {$set: {operator:""}}, {multi: true})
新增int类型字段:
db.amazon_best_seller_listing.update({}, {$set: {data_status:NumberInt(0)}}, {multi: true})
新增String类型字段:
db.amazon_best_seller_listing.update({}, {$set: {prohibition_causes:""}}, {multi: true})