我可以对 Redis 值执行正则表达式搜索吗？

Question

I tried using RedisSearch but there you can perform a fuzzy search, but I need to perform a regex search like:

key: "12345"
value: { name: "Maruti"}

searching "aru" will give the result "Mumbai", basically the regex formed is *aru* . Can anyone help me out how can I achieve it using Redis?

Answer 1

This can be done, but I do not recommend it - performance will be greatly impacted.

If you must, however, you can use RedisGears for ad-hoc regex queries like so:

127.0.0.1:6379> HSET mykey name Maruti
(integer) 1
127.0.0.1:6379> HSET anotherkey name Moana
(integer) 1
127.0.0.1:6379> RG.PYEXECUTE "import re\np = re.compile('.*aru.*')\nGearsBuilder().filter(lambda x: p.match(x['value']['name'])).map(lambda x: x['key']).run()"
1) 1) "mykey"
2) (empty array)

Here's the Python code for readability:

import re
p = re.compile('.*aru.*')
GearsBuilder() \
    .filter(lambda x: p.match(x['value']['name'])) \
    .map(lambda x: x['key']) \
    .run()