Re: sparksql query result is not same as persto on same sql

Posted by bhavya411 on Dec 01, 2017; 10:17am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/sparksql-query-result-is-not-same-as-persto-on-same-sql-tp28895p28898.html

Thanks Dylan, We are looking into the problem.

Regards
Bhavya

On Fri, Dec 1, 2017 at 2:25 PM, dylan <[hidden email]> wrote:

> hello all:
>      i am use carbondata version is 1.2.0 and spark version is 1.6.0.
>      in my test case
>    1.Creating a Table
>   cc.sql("create table IF NOT EXISTS  test.table5(id string,name
> String,city String,age int) stored by 'carbondata' *
> tblproperties('DICTIONARY_INCLUDE' = 'age')* ")
>
>   2.load csv data into table,data like this:
>     id,name,city,age
>     1,david,shenzhen,31
>     88,eason,shenzhen,27
>     3,jarry,wuhan,35
>
>    3.select from sparksql,result is :
>   +-----+--------+-----------+------+--+
> | id  |  name  |   city    | age  |
> +-----+--------+-----------+------+--+
> | 1   | david  | shenzhen  | 31   |
> | 3   | jarry  | wuhan     | 35   |
> | 88  | eason  | shenzhen  | 27   |
> +-----+--------+-----------+------+--+
>    this result is correct
>
>  4.select from presto,result is:
>  id | name  |   city   | age
> ----+-------+----------+-----
>  1  | david | shenzhen |   3
>  3  | jarry | wuhan    |   4
>  88 | eason | shenzhen |   2
> (3 rows)
>   look at the age filed,is wrong
>
> I know why this happens because I used dictionary encoding in the age
> field。
>
> Can anyone help me with this problem?
>
>
>
>
>
>
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