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Posted to issues@drill.apache.org by "Changbo Shu (Jira)" <ji...@apache.org> on 2020/01/11 02:31:00 UTC

[jira] [Commented] (DRILL-7521) UNSUPPORTED_OPERATION ERROR: Hash aggregate does not support schema change

    [ https://issues.apache.org/jira/browse/DRILL-7521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17013339#comment-17013339 ] 

Changbo Shu commented on DRILL-7521:
------------------------------------

when the data's scale of tpc-ds is 1g, this sql is normal. 

> UNSUPPORTED_OPERATION ERROR: Hash aggregate does not support schema change
> --------------------------------------------------------------------------
>
>                 Key: DRILL-7521
>                 URL: https://issues.apache.org/jira/browse/DRILL-7521
>             Project: Apache Drill
>          Issue Type: Bug
>          Components:  Server
>    Affects Versions: 1.16.0
>            Reporter: Changbo Shu
>            Priority: Major
>
> TPC-DS sql7, scale is 10G.
> select
>    i_item_id,
>    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, item, promotion
> where 
>     ss_sold_date_sk = d_date_sk and
>     ss_item_sk = i_item_sk and
>     ss_cdemo_sk = cd_demo_sk and
>     ss_promo_sk = p_promo_sk and
>     cd_gender = 'F' and
>     cd_marital_status = 'W' and
>     cd_education_status = 'College' and
>    (p_channel_email = 'N' or p_channel_event = 'N') and
>    d_year = 2001
> group by i_item_id
> order by i_item_id
> limit 100;
>  
> exception stack:
> *UNSUPPORTED_OPERATION ERROR: Hash aggregate does not support schema change*
>  Prior schema:
> BatchSchema [fields=[[`i_item_id`(varchar:optional)],[`ss_quantity` (int:optional)], {color:#FF0000}[`ss_list_price` (int:optional)] ,{color}{color:#FF0000}[`ss_coupon_amt` (int:optional)], {color}{color:#FF0000}[`ss_sales_price`(int:optional)]{color},selectionVector=NONE]
> New schema:
> BatchSchema [fields=[[`i_item_id`(varchar:optional)], [`ss_quantity` (int:optional)],{color:#FF0000}[`ss_list_price` (vardecimal(7,2):optional), children=([`$bit$` (uint1:required)], [`ss_list_price` (vardecimal(7,2):optional), children=([`$offset$` (uint4:required)],  [`ss_coupon_amt` (vardecimal(7,2):optional), children=([`$bit$` (uint1:required)], [`ss_coupon_amt` (vardecimal(7,2):optional), children=([`$offset$` (uint4:required)],  [`ss_sales_price` (vardecimal(7,2):optional), children=([`$bit$` (uint1:required)], [`ss_sales_price` (vardecimal(7,2):optional), children=([`$offset$` (uint4:required)]{color},  ,selectionVector=NONE]
>         



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