Hi Yinwei,

Thanks for this suggestion. From my opinion providing first 2 options
ensures that user is aware about the data he is going to load and column
data mapping.

For the 3rd option suggested by you I think it will be something that we
are taking the decision without intimating the user and we cannot be sure
that this is exactly how user wanted to load the data. So from my opinion
we should let user decide this behavior.

Regards
Manish Gupta

On Mon, Mar 13, 2017 at 7:48 AM, Yinwei Li <251469...@qq.com> wrote:

> Hi all,
>
>
>   when loading data from a csv file to carbondata table, we have 2 choices
> to mapping the columns from csv file to carbondata table:
>
>
>   1. add columns' names at the start of the csv file
>   2. declare the column mapping at the data loading script
>
>
>   shall we add a feature which make an auto mapping in the order of the
> columns at the csv file and the carbondata table at default, so that users
> don't have to do the above jobs any more under most of the circumstance.

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