http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/Discussing-to-add-carbondata-tools-module-tp4p63.html
As already pointed out by Jihong and Venkata, I think these tools can be separated for end user and developer:
For end user: care about the schema, file size, number of records, and maybe some stats about the table, like the “desc formatted table” command in SQL
For developer: including above and more information to help debuging and reasoning about performance issue, for example, calculate and print out how good is the multidimensional index in the sense of order and sparsity, or how good is it for each column.
> 在 2016年8月8日，下午7:47，Jihong Ma <
[hidden email]> 写道：
>
> +1
>
> It is a good idea to develop tools for easy interacting with Carbon. I would like to suggest to have sub-module under tools to further categorize them based on their usage: command line tools, util for printing metadata...
>
> Jihong
>
> Sent from HUAWEI AnyOffice
> From: Venkata Gollamudi
> To:
[hidden email];
> Subject: Re: Discussing to add carbondata-tools module
>
> Time: 2016-08-08 13:02:16
> +1
> These list looks like both user needed tools for maintenance and dev tools.
> Mostly they can be separated.
>
> On Fri, Aug 5, 2016, 6:03 PM 金铸 <
[hidden email]> wrote:
>
>> +1
>>
>>
>> 在 2016/8/5 17:15, Jean-Baptiste Onofré 写道:
>>> I guess it's where we can put the checkstyle, ... (what we have in the
>>> dev folder right now), correct ?
>>>
>>> Regards
>>> JB
>>>
>>> On 08/05/2016 08:31 AM, QiangCai wrote:
>>>> Hi all,
>>>>
>>>> To improve the CarbonData system's usability and maintainability, I
>>>> suggest to add carbondata-tools module.
>>>> I think this module should provide some command tools as following.
>>>>
>>>> 1. import
>>>> import a data file/folder to any existing table
>>>>
>>>> 2. export
>>>> export the given columns to a file
>>>>
>>>> 3. schema
>>>> show the detail information of the specified table schema file
>>>>
>>>> 4. metadata
>>>> show tablestatus metadata
>>>> show the history track for dataloading and compaction
>>>>
>>>> 5. footer
>>>> show blocklet metadata list
>>>> show start/end key, min/max value, row number, total size for the
>>>> specified blocklet
>>>>
>>>> 6. blocklet
>>>> show blocket list
>>>> show blocket data, RLE map, Inverted index for the given columns
>>>>
>>>> 7. index
>>>> show BTree node list
>>>> show node information:start/end key, min/max value)
>>>>
>>>> 8. dictionary
>>>> show key-value list of specified gloabl/local dictionary file
>>>> show sort index
>>>> show dictionary metadata
>>>>
>>>> Thank you and look forward to having your opinion on this carbon-tools
>>>> module.
>>>>
>>>> David Cai
>>>>
>>>>
>>>>
>>>> --
>>>> View this message in context:
>>>>
>>
http://apache-carbondata-mailing-list-archive.1130556.n5.nabble.com/Discussing-to-add-carbondata-tools-module-tp4.html>>>> Sent from the Apache CarbonData Mailing List archive mailing list
>>>> archive at Nabble.com.
>>>>
>>>
>>
>> --
>> 金铸
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