Have you tested value search in Redis?

Searching by value in Redis is not directly supported because Redis is a key-value store where keys are indexed, but values are not. To search by value, you usually have to iterate over all keys and check their values, which is inefficient.

For more convenient value-based searches, you can use Redis data structures such as hashes or indexes with Sorted Sets, or employ modules like RediSearch that add full-text search and filtering capabilities.

Example of iterating over keys and checking values in Python using redis-py:

import redis

r = redis.Redis()

pattern = '*'
search_value = 'desired_value'

for key in r.scan_iter(match=pattern):
    value = r.get(key)
    if value and search_value.encode() in value:
        print(f'Found key: {key.decode()} with the desired value')

However, this approach is not suitable for large datasets.