not type string can be override type string

[leonYun]

I find a key which is type hash(zset、set、list) , can use commond "set" override the key, make the key become type string.
but if the key is type string(hash, zset, set , list), they can't convert to other type(not contains string).

For example，here the redis commonds

1. set key test
2. hset key field test
   the will be errror：(error) WRONGTYPE Operation against a key holding the wrong kind of value
   but if this redis commonds, they will be successed
3. hset key1 field test
4. set key1 test
   and "key1" from hash to string

i don't why

[itamarhaber]

Hello @leonYun

The SET command is "special" in the sense that it overwrites the key's value regardless of it's type. This is also documented at https://redis.io/commands/set/

I also don't know why :)