Hi xuchuanyin, Yes your understanding is correct and i agree that documentation has to be updated to mention that for old store double data type should be used. For the first phase let us focus on writing/reading through SDK and FileFormat. What are your thoughts?
On Fri, Sep 14, 2018 at 7:05 AM xuchuanyin <xuchuan...@hust.edu.cn> wrote: > The actual storage datatype for that column is stored in ColumnPage level. > In previous implementation, columns with literal datatype 'float' and > 'double' shared the same storage datatype 'double' and you want to > distinguish them by adding support for storage datatype 'float'. > > Is my understanding right? If it is so, there will no compatible problems. > But we'd better to mention that for old store prior than 1.5.0, user can > only use double. > > > > -- > Sent from: > http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/ >
