6 lines
234 B
Plaintext
6 lines
234 B
Plaintext
|
use digimon_cart;
|
||
|
|
|
||
|
|
# 精確查詢與範圍條件組合索引
|
||
|
|
db.cart.createIndex({ "uid": 1, "product_id": 1 }, { unique: true })
|
||
|
|
# 排序索引
|
||
|
|
db.supplementary_info.createIndex({"created_at": -1}) # 用於按 created_at 倒序排序
|