Matvey Vasenin

@cebe done :)

@cebe I can fix it. But I'm not sure that's the right way. I think that when you duplicate PK to throw an exception.

@cebe ``` EVAL "for i = 1, 1000000 do redis.call('SADD', 'test', i) end" 0 (7.90s) SMEMBERS test (6.75s) EVAL "for i = 1, 1000000 do redis.call('RPUSH', 'test', i) end" 0...

Exactly. Lists do not have fast methods to check for existence.