lua-redisHow to select db

local redis = (require 'redis').connect('127.0.0.1', 6379)
redis:select(2)ctrl + cyoutubegithub

`require 'redis'` load Redis module for Lua	`connect` connect to Redis server
`'127.0.0.1', 6379` Redis host and port to connect to	`:select` selects specified DB by number
`(2)` select DB number `2`

local redis = (require 'redis').connect('127.0.0.1', 6379)
print(redis:get('key'))

redis:select(2)
print(redis:get('key'))

10
nil