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https://issues.apache.org/jira/browse/DRILL-7521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Changbo Shu closed DRILL-7521.
------------------------------
Resolution: Not A Problem
> 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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