如何在redis hash中搜索关键模式? [英] How to search a key pattern in redis hash?

问题描述

我有一个哈希表，其键的模式为 USER_TEL，例如:

I have a hash table whose keys are of pattern USER_TEL like:

bob_123456  : Some address
mary_567894 : other address
john_123456 : third address

现在，我想获取所有密钥中具有相同电话号码的用户的地址.

Now, I'd like to get addresses of all uses who have the same TEL in their keys.

我想到的是:

tel = 123456
r.hmget('address_book', '*_%s' % tel)

我得到 [None] 而不是值.

推荐答案

你应该使用 HSCAN 命令.

例如:

redis> HMSET address_book bob_123456 Address1 mary_567894 Address2 john_123456 Address3
OK
redis> HSCAN address_book 0 match *_123456
1) "0"
2) 1) "bob_123456"
   2) "Address1"
   3) "john_123456"
   4) "Address3"

<小时>

更新

Python 实现:

---

Update

Python implementation:

r = Redis(....) #redis url
for address in r.hscan_iter('address_book', match='*_123456'):
  print(address)

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