Hi, +1 for omitting "root", but may be in 1.x version.
Thanks, ————————————————— Jialin Qiao Apache IoTDB PMC Chao Wang <[email protected]> 于2022年11月18日周五 21:26写道： > > It's OK to use 64 bytes as the sg name, but root should not be included. That > is, root. xxxx should be xxxx with a length of no more than 64, not xxxx with > a length of no more than 60. > > > > > Then I raised another question, which can be discussed next time. > > > > > I think root is only useful for joining all sgs. In other scenarios, root is > not necessary. We should try to shield the root prefix for users, because it > is unnecessary to always input these characters. > > > > > Thanks! > > > Chao Wang > BONC ltd > [email protected] > 在2022年11月18日 19:58，周钰坤<[email protected]> 写道： > We support suffix path, which will be concat to the prefix path in "from > clause", and full path, starting with "root", in "where" clause. The > "root" is a identifier for us to recognize which is a full path. > > Chao Wang <[email protected]> 于2022年11月18日周五 18:24写道： > > +1， but why including root, i think the user could ignore the "root" when > we change sg to database. And we could ignore the root in the file path. > And, the sql select from root.dbname and select from dbname all are ok to > keep compatible. > > > > > Thanks! > > > Chao Wang > BONC ltd > [email protected] > 在2022年11月18日 18:02，冯 庆新<[email protected]> 写道： > Agree with ‘add constraint to the length of database name’,but Can we > choose a value greater than 64? > > 发件人: Jialin Qiao<mailto:[email protected]> > 发送时间: 2022年11月18日 16:15 > 收件人: [email protected]<mailto:[email protected]> > 主题: Re: Add constraint to the length of database name > > +1 > ————————————————— > Jialin Qiao > Apache IoTDB PMC > > 周钰坤 <[email protected]> 于2022年11月18日周五 15:44写道： > > Hi, > > We want to add constraint to the length of database name, as most > popular database systems have such constraint as well, for example the > length of database name in Mysql shall not exceed 64. Currently, the > maximum length of database name, including "root.", is *64* and it is > immutable. Such constraint can help avoid some bugs of database and region > management, since we use database names in the directory name, which shall > not exceed the max name length defined by file system. > > best regards > ------------------------ > Yukun Zhou, Tsinghua University > >
