Hashes

success SetHashLong(long id,string idx,long value);
success SetHashString(long id,string idx,string value);
long    GetHashLong(long id,string idx);
string    GetHashString(long id,string idx);
success DelHashElement(long id,string idx);
string    GetFirstHashKey(long id);
string    GetNextHashKey(long id,string idx);
string    GetLastHashKey(long id);
string    GetPrevHashKey(long id,string idx);