[jira] [Created] (TAJO-1773) GROUPING clause should be supported

["Dongkyu Hwangbo (JIRA)" <ji...@apache.org>]

Dongkyu Hwangbo created TAJO-1773:
-------------------------------------

             Summary: GROUPING clause should be supported
                 Key: TAJO-1773
                 URL: https://issues.apache.org/jira/browse/TAJO-1773
             Project: Tajo
          Issue Type: Improvement
    Affects Versions: 0.11.0
            Reporter: Dongkyu Hwangbo
            Priority: Minor


tajo cannot run ROLL UP, GROUPING clause.
Here is example.(in tpc-ds q27)
{code:SQL}
select i_item_id,
        s_state, grouping(s_state) g_state,
        avg(ss_quantity) agg1,
        avg(ss_list_price) agg2,
        avg(ss_coupon_amt) agg3,
        avg(ss_sales_price) agg4
 from store_sales, customer_demographics, date_dim, store, item
 where ss_sold_date_sk = d_date_sk and
       ss_item_sk = i_item_sk and
       ss_store_sk = s_store_sk and
       ss_cdemo_sk = cd_demo_sk and
       cd_gender = 'M' and
       cd_marital_status = 'S' and
       cd_education_status = 'College' and
       d_year = 2002 and
       s_state in ('TN','TN', 'TN', 'TN', 'TN', 'TN')
 group by rollup (i_item_id, s_state)
 order by i_item_id
         ,s_state
 limit 100;
{code}



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