Re: [Discussion] Support for Float and Byte data types

Posted by kunalkapoor on Sep 14, 2018; 4:34am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/Discussion-Support-for-Float-and-Byte-data-types-tp62418p62432.html

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 <[hidden email]> 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.
>
>
>
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