Re: [New Feature] Alter table support in carbondata

Posted by Liang Chen on Mar 09, 2017; 11:50pm
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/New-Feature-Alter-table-support-in-carbondata-tp8542p8566.html

Hi

Thanks for you started this discussion for alter table feature.

A couple of comments:
1.For "change of data type" , whether only support from INT to BIGINT, or
not ?
2.Whether support adjust the order of columns for MDK , and make compaction
to resort data as per the new order of columns , or not ?

Regards
Liang

2017-03-09 21:00 GMT+08:00 manish gupta <[hidden email]>:

> Hi All,
>
> Currently in carbondata after a table is created once it becomes immutable.
> Deletion or addition of column is not supported because of which the same
> table and data cannot be used again. To add more flexibility to the
> carbondata system alter table support needs to be added to carbondata
> system.
>
>
> Please refer the design document at below location and share your
> suggestions.
>
>
> https://drive.google.com/file/d/0B1DnrpMgGOu9dGxYMzVJUXEyZG8/
> view?usp=sharing
>
>
> Regards
>
> Manish Gupta
>

--
Regards
Liang