IHEII/sr_tpcds_exec huggingface dataset:
Query Q81 (degree of parallelism: 2)

with customer_total_return as
 (select cr_returning_customer_sk as ctr_customer_sk
        ,ca_state as ctr_state, 
 	sum(cr_return_amt_inc_tax) as ctr_total_return
 from catalog_returns
     ,date_dim
     ,customer_address
 where cr_returned_date_sk = d_date_sk 
   and d_year =2000
   and cr_returning_addr_sk = ca_address_sk 
 group by cr_returning_customer_sk
         ,ca_state )
  select  c_customer_id,c_salutation,c_first_name,c_last_name,ca_street_number,ca_street_name
                   ,ca_street_type,ca_suite_number,ca_city,ca_county,ca_state,ca_zip,ca_country,ca_gmt_offset
                  ,ca_location_type,ctr_total_return
 from customer_total_return ctr1
     ,customer_address
     ,customer
 where ctr1.ctr_total_return > (select avg(ctr_total_return)*1.2
 			  from customer_total_return ctr2 
                  	  where ctr1.ctr_state = ctr2.ctr_state)
       and ca_address_sk = c_current_addr_sk
       and ca_state = 'GA'
       and ctr1.ctr_customer_sk = c_customer_sk
 order by c_customer_id,c_salutation,c_first_name,c_last_name,ca_street_number,ca_street_name
                   ,ca_street_type,ca_suite_number,ca_city,ca_county,ca_state,ca_zip,ca_country,ca_gmt_offset
                  ,ca_location_type,ctr_total_return
 limit 100;

Measured execution times:
4000MB: 621
4000MB-sp(lt0.2/ts5/min10/max100): 634
8000MB: 641
8000MB-sp(lt0.2/ts5/min10/max100): 673
Query Q81 (degree of parallelism: 4)

with customer_total_return as
 (select cr_returning_customer_sk as ctr_customer_sk
        ,ca_state as ctr_state, 
 	sum(cr_return_amt_inc_tax) as ctr_total_return
 from catalog_returns
     ,date_dim
     ,customer_address
 where cr_returned_date_sk = d_date_sk 
   and d_year =2000
   and cr_returning_addr_sk = ca_address_sk 
 group by cr_returning_customer_sk
         ,ca_state )
  select  c_customer_id,c_salutation,c_first_name,c_last_name,ca_street_number,ca_street_name
                   ,ca_street_type,ca_suite_number,ca_city,ca_county,ca_state,ca_zip,ca_country,ca_gmt_offset
                  ,ca_location_type,ctr_total_return
 from customer_total_return ctr1
     ,customer_address
     ,customer
 where ctr1.ctr_total_return > (select avg(ctr_total_return)*1.2
 			  from customer_total_return ctr2 
                  	  where ctr1.ctr_state = ctr2.ctr_state)
       and ca_address_sk = c_current_addr_sk
       and ca_state = 'GA'
       and ctr1.ctr_customer_sk = c_customer_sk
 order by c_customer_id,c_salutation,c_first_name,c_last_name,ca_street_number,ca_street_name
                   ,ca_street_type,ca_suite_number,ca_city,ca_county,ca_state,ca_zip,ca_country,ca_gmt_offset
                  ,ca_location_type,ctr_total_return
 limit 100;

Measured execution times:
4000MB: 427
4000MB-sp(lt0.2/ts5/min10/max100): 409
8000MB: 409
8000MB-sp(lt0.2/ts5/min10/max100): 418
Query Q81 (degree of parallelism: 8)

with customer_total_return as
 (select cr_returning_customer_sk as ctr_customer_sk
        ,ca_state as ctr_state, 
 	sum(cr_return_amt_inc_tax) as ctr_total_return
 from catalog_returns
     ,date_dim
     ,customer_address
 where cr_returned_date_sk = d_date_sk 
   and d_year =2000
   and cr_returning_addr_sk = ca_address_sk 
 group by cr_returning_customer_sk
         ,ca_state )
  select  c_customer_id,c_salutation,c_first_name,c_last_name,ca_street_number,ca_street_name
                   ,ca_street_type,ca_suite_number,ca_city,ca_county,ca_state,ca_zip,ca_country,ca_gmt_offset
                  ,ca_location_type,ctr_total_return
 from customer_total_return ctr1
     ,customer_address
     ,customer
 where ctr1.ctr_total_return > (select avg(ctr_total_return)*1.2
 			  from customer_total_return ctr2 
                  	  where ctr1.ctr_state = ctr2.ctr_state)
       and ca_address_sk = c_current_addr_sk
       and ca_state = 'GA'
       and ctr1.ctr_customer_sk = c_customer_sk
 order by c_customer_id,c_salutation,c_first_name,c_last_name,ca_street_number,ca_street_name
                   ,ca_street_type,ca_suite_number,ca_city,ca_county,ca_state,ca_zip,ca_country,ca_gmt_offset
                  ,ca_location_type,ctr_total_return
 limit 100;

Measured execution times:
4000MB: 367
4000MB-sp(lt0.2/ts5/min10/max100): 392
8000MB: 375
8000MB-sp(lt0.2/ts5/min10/max100): 396
Query Q82 (degree of parallelism: 2)

select  i_item_id
       ,i_item_desc
       ,i_current_price
 from item, inventory, date_dim, store_sales
 where i_current_price between 62 and 62+30
 and inv_item_sk = i_item_sk
 and d_date_sk=inv_date_sk
 and d_date between cast('2000-05-25' as date) and date_add(cast('2000-05-25' as date),  60)
 and i_manufact_id in (129,270,821,423)
 and inv_quantity_on_hand between 100 and 500
 and ss_item_sk = i_item_sk
 group by i_item_id,i_item_desc,i_current_price
 order by i_item_id
 limit 100;

Measured execution times:
4000MB: 143
4000MB-sp(lt0.2/ts5/min10/max100): 158
8000MB: 146
8000MB-sp(lt0.2/ts5/min10/max100): 152
Query Q82 (degree of parallelism: 4)

select  i_item_id
       ,i_item_desc
       ,i_current_price
 from item, inventory, date_dim, store_sales
 where i_current_price between 62 and 62+30
 and inv_item_sk = i_item_sk
 and d_date_sk=inv_date_sk
 and d_date between cast('2000-05-25' as date) and date_add(cast('2000-05-25' as date),  60)
 and i_manufact_id in (129,270,821,423)
 and inv_quantity_on_hand between 100 and 500
 and ss_item_sk = i_item_sk
 group by i_item_id,i_item_desc,i_current_price
 order by i_item_id
 limit 100;

Measured execution times:
4000MB: 123
4000MB-sp(lt0.2/ts5/min10/max100): 132
8000MB: 112
8000MB-sp(lt0.2/ts5/min10/max100): 132
Query Q82 (degree of parallelism: 8)

select  i_item_id
       ,i_item_desc
       ,i_current_price
 from item, inventory, date_dim, store_sales
 where i_current_price between 62 and 62+30
 and inv_item_sk = i_item_sk
 and d_date_sk=inv_date_sk
 and d_date between cast('2000-05-25' as date) and date_add(cast('2000-05-25' as date),  60)
 and i_manufact_id in (129,270,821,423)
 and inv_quantity_on_hand between 100 and 500
 and ss_item_sk = i_item_sk
 group by i_item_id,i_item_desc,i_current_price
 order by i_item_id
 limit 100;

Measured execution times:
4000MB: 117
4000MB-sp(lt0.2/ts5/min10/max100): 124
8000MB: 113
8000MB-sp(lt0.2/ts5/min10/max100): 130
Query Q83 (degree of parallelism: 2)

with sr_items as
 (select i_item_id item_id,
        sum(sr_return_quantity) sr_item_qty
 from store_returns,
      item,
      date_dim
 where sr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
	  where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   sr_returned_date_sk   = d_date_sk
 group by i_item_id),
 cr_items as
 (select i_item_id item_id,
        sum(cr_return_quantity) cr_item_qty
 from catalog_returns,
      item,
      date_dim
 where cr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
	  where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   cr_returned_date_sk   = d_date_sk
 group by i_item_id),
 wr_items as
 (select i_item_id item_id,
        sum(wr_return_quantity) wr_item_qty
 from web_returns,
      item,
      date_dim
 where wr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
		where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   wr_returned_date_sk   = d_date_sk
 group by i_item_id)
  select  sr_items.item_id
       ,sr_item_qty
       ,sr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 sr_dev
       ,cr_item_qty
       ,cr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 cr_dev
       ,wr_item_qty
       ,wr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 wr_dev
       ,(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 average
 from sr_items
     ,cr_items
     ,wr_items
 where sr_items.item_id=cr_items.item_id
   and sr_items.item_id=wr_items.item_id 
 order by sr_items.item_id
         ,sr_item_qty
 limit 100;

Measured execution times:
4000MB: 258
4000MB-sp(lt0.2/ts5/min10/max100): 279
8000MB: 273
8000MB-sp(lt0.2/ts5/min10/max100): 277
Query Q83 (degree of parallelism: 4)

with sr_items as
 (select i_item_id item_id,
        sum(sr_return_quantity) sr_item_qty
 from store_returns,
      item,
      date_dim
 where sr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
	  where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   sr_returned_date_sk   = d_date_sk
 group by i_item_id),
 cr_items as
 (select i_item_id item_id,
        sum(cr_return_quantity) cr_item_qty
 from catalog_returns,
      item,
      date_dim
 where cr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
	  where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   cr_returned_date_sk   = d_date_sk
 group by i_item_id),
 wr_items as
 (select i_item_id item_id,
        sum(wr_return_quantity) wr_item_qty
 from web_returns,
      item,
      date_dim
 where wr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
		where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   wr_returned_date_sk   = d_date_sk
 group by i_item_id)
  select  sr_items.item_id
       ,sr_item_qty
       ,sr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 sr_dev
       ,cr_item_qty
       ,cr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 cr_dev
       ,wr_item_qty
       ,wr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 wr_dev
       ,(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 average
 from sr_items
     ,cr_items
     ,wr_items
 where sr_items.item_id=cr_items.item_id
   and sr_items.item_id=wr_items.item_id 
 order by sr_items.item_id
         ,sr_item_qty
 limit 100;

Measured execution times:
4000MB: 229
4000MB-sp(lt0.2/ts5/min10/max100): 242
8000MB: 270
8000MB-sp(lt0.2/ts5/min10/max100): 251
Query Q83 (degree of parallelism: 8)

with sr_items as
 (select i_item_id item_id,
        sum(sr_return_quantity) sr_item_qty
 from store_returns,
      item,
      date_dim
 where sr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
	  where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   sr_returned_date_sk   = d_date_sk
 group by i_item_id),
 cr_items as
 (select i_item_id item_id,
        sum(cr_return_quantity) cr_item_qty
 from catalog_returns,
      item,
      date_dim
 where cr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
	  where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   cr_returned_date_sk   = d_date_sk
 group by i_item_id),
 wr_items as
 (select i_item_id item_id,
        sum(wr_return_quantity) wr_item_qty
 from web_returns,
      item,
      date_dim
 where wr_item_sk = i_item_sk
 and   d_date    in 
	(select d_date
	from date_dim
	where d_week_seq in 
		(select d_week_seq
		from date_dim
		where d_date in ('2000-06-30','2000-09-27','2000-11-17')))
 and   wr_returned_date_sk   = d_date_sk
 group by i_item_id)
  select  sr_items.item_id
       ,sr_item_qty
       ,sr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 sr_dev
       ,cr_item_qty
       ,cr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 cr_dev
       ,wr_item_qty
       ,wr_item_qty/(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 * 100 wr_dev
       ,(sr_item_qty+cr_item_qty+wr_item_qty)/3.0 average
 from sr_items
     ,cr_items
     ,wr_items
 where sr_items.item_id=cr_items.item_id
   and sr_items.item_id=wr_items.item_id 
 order by sr_items.item_id
         ,sr_item_qty
 limit 100;

Measured execution times:
4000MB: 229
4000MB-sp(lt0.2/ts5/min10/max100): 243
8000MB: 224
8000MB-sp(lt0.2/ts5/min10/max100): 250
Query Q84 (degree of parallelism: 2)

select  c_customer_id as customer_id
       , coalesce(c_last_name,'') || ', ' || coalesce(c_first_name,'') as customername
 from customer
     ,customer_address
     ,customer_demographics
     ,household_demographics
     ,income_band
     ,store_returns
 where ca_city	        =  'Edgewood'
   and c_current_addr_sk = ca_address_sk
   and ib_lower_bound   >=  38128
   and ib_upper_bound   <=  38128 + 50000
   and ib_income_band_sk = hd_income_band_sk
   and cd_demo_sk = c_current_cdemo_sk
   and hd_demo_sk = c_current_hdemo_sk
   and sr_cdemo_sk = cd_demo_sk
 order by c_customer_id
 limit 100;

Measured execution times:
4000MB: 199
4000MB-sp(lt0.2/ts5/min10/max100): 182
8000MB: 184
8000MB-sp(lt0.2/ts5/min10/max100): 186
Query Q84 (degree of parallelism: 4)

select  c_customer_id as customer_id
       , coalesce(c_last_name,'') || ', ' || coalesce(c_first_name,'') as customername
 from customer
     ,customer_address
     ,customer_demographics
     ,household_demographics
     ,income_band
     ,store_returns
 where ca_city	        =  'Edgewood'
   and c_current_addr_sk = ca_address_sk
   and ib_lower_bound   >=  38128
   and ib_upper_bound   <=  38128 + 50000
   and ib_income_band_sk = hd_income_band_sk
   and cd_demo_sk = c_current_cdemo_sk
   and hd_demo_sk = c_current_hdemo_sk
   and sr_cdemo_sk = cd_demo_sk
 order by c_customer_id
 limit 100;

Measured execution times:
4000MB: 137
4000MB-sp(lt0.2/ts5/min10/max100): 150
8000MB: 140
8000MB-sp(lt0.2/ts5/min10/max100): 151
Query Q84 (degree of parallelism: 8)

select  c_customer_id as customer_id
       , coalesce(c_last_name,'') || ', ' || coalesce(c_first_name,'') as customername
 from customer
     ,customer_address
     ,customer_demographics
     ,household_demographics
     ,income_band
     ,store_returns
 where ca_city	        =  'Edgewood'
   and c_current_addr_sk = ca_address_sk
   and ib_lower_bound   >=  38128
   and ib_upper_bound   <=  38128 + 50000
   and ib_income_band_sk = hd_income_band_sk
   and cd_demo_sk = c_current_cdemo_sk
   and hd_demo_sk = c_current_hdemo_sk
   and sr_cdemo_sk = cd_demo_sk
 order by c_customer_id
 limit 100;

Measured execution times:
4000MB: 147
4000MB-sp(lt0.2/ts5/min10/max100): 149
8000MB: 146
8000MB-sp(lt0.2/ts5/min10/max100): 139
Query Q85 (degree of parallelism: 2)

select  substr(r_reason_desc,1,20)
       ,avg(ws_quantity)
       ,avg(wr_refunded_cash)
       ,avg(wr_fee)
 from web_sales, web_returns, web_page, customer_demographics cd1,
      customer_demographics cd2, customer_address, date_dim, reason 
 where ws_web_page_sk = wp_web_page_sk
   and ws_item_sk = wr_item_sk
   and ws_order_number = wr_order_number
   and ws_sold_date_sk = d_date_sk and d_year = 2000
   and cd1.cd_demo_sk = wr_refunded_cdemo_sk 
   and cd2.cd_demo_sk = wr_returning_cdemo_sk
   and ca_address_sk = wr_refunded_addr_sk
   and r_reason_sk = wr_reason_sk
   and
   (
    (
     cd1.cd_marital_status = 'M'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = 'Advanced Degree'
     and 
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 100.00 and 150.00
    )
   or
    (
     cd1.cd_marital_status = 'S'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = 'College' 
     and
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 50.00 and 100.00
    )
   or
    (
     cd1.cd_marital_status = 'W'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = '2 yr Degree'
     and
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 150.00 and 200.00
    )
   )
   and
   (
    (
     ca_country = 'United States'
     and
     ca_state in ('IN', 'OH', 'NJ')
     and ws_net_profit between 100 and 200  
    )
    or
    (
     ca_country = 'United States'
     and
     ca_state in ('WI', 'CT', 'KY')
     and ws_net_profit between 150 and 300  
    )
    or
    (
     ca_country = 'United States'
     and
     ca_state in ('LA', 'IA', 'AR')
     and ws_net_profit between 50 and 250  
    )
   )
group by r_reason_desc
order by substr(r_reason_desc,1,20)
        ,avg(ws_quantity)
        ,avg(wr_refunded_cash)
        ,avg(wr_fee)
limit 100;

Measured execution times:
4000MB: 492
4000MB-sp(lt0.2/ts5/min10/max100): 499
8000MB: 491
8000MB-sp(lt0.2/ts5/min10/max100): 482
Query Q85 (degree of parallelism: 4)

select  substr(r_reason_desc,1,20)
       ,avg(ws_quantity)
       ,avg(wr_refunded_cash)
       ,avg(wr_fee)
 from web_sales, web_returns, web_page, customer_demographics cd1,
      customer_demographics cd2, customer_address, date_dim, reason 
 where ws_web_page_sk = wp_web_page_sk
   and ws_item_sk = wr_item_sk
   and ws_order_number = wr_order_number
   and ws_sold_date_sk = d_date_sk and d_year = 2000
   and cd1.cd_demo_sk = wr_refunded_cdemo_sk 
   and cd2.cd_demo_sk = wr_returning_cdemo_sk
   and ca_address_sk = wr_refunded_addr_sk
   and r_reason_sk = wr_reason_sk
   and
   (
    (
     cd1.cd_marital_status = 'M'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = 'Advanced Degree'
     and 
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 100.00 and 150.00
    )
   or
    (
     cd1.cd_marital_status = 'S'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = 'College' 
     and
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 50.00 and 100.00
    )
   or
    (
     cd1.cd_marital_status = 'W'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = '2 yr Degree'
     and
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 150.00 and 200.00
    )
   )
   and
   (
    (
     ca_country = 'United States'
     and
     ca_state in ('IN', 'OH', 'NJ')
     and ws_net_profit between 100 and 200  
    )
    or
    (
     ca_country = 'United States'
     and
     ca_state in ('WI', 'CT', 'KY')
     and ws_net_profit between 150 and 300  
    )
    or
    (
     ca_country = 'United States'
     and
     ca_state in ('LA', 'IA', 'AR')
     and ws_net_profit between 50 and 250  
    )
   )
group by r_reason_desc
order by substr(r_reason_desc,1,20)
        ,avg(ws_quantity)
        ,avg(wr_refunded_cash)
        ,avg(wr_fee)
limit 100;

Measured execution times:
4000MB: 411
4000MB-sp(lt0.2/ts5/min10/max100): 424
8000MB: 421
8000MB-sp(lt0.2/ts5/min10/max100): 419
Query Q85 (degree of parallelism: 8)

select  substr(r_reason_desc,1,20)
       ,avg(ws_quantity)
       ,avg(wr_refunded_cash)
       ,avg(wr_fee)
 from web_sales, web_returns, web_page, customer_demographics cd1,
      customer_demographics cd2, customer_address, date_dim, reason 
 where ws_web_page_sk = wp_web_page_sk
   and ws_item_sk = wr_item_sk
   and ws_order_number = wr_order_number
   and ws_sold_date_sk = d_date_sk and d_year = 2000
   and cd1.cd_demo_sk = wr_refunded_cdemo_sk 
   and cd2.cd_demo_sk = wr_returning_cdemo_sk
   and ca_address_sk = wr_refunded_addr_sk
   and r_reason_sk = wr_reason_sk
   and
   (
    (
     cd1.cd_marital_status = 'M'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = 'Advanced Degree'
     and 
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 100.00 and 150.00
    )
   or
    (
     cd1.cd_marital_status = 'S'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = 'College' 
     and
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 50.00 and 100.00
    )
   or
    (
     cd1.cd_marital_status = 'W'
     and
     cd1.cd_marital_status = cd2.cd_marital_status
     and
     cd1.cd_education_status = '2 yr Degree'
     and
     cd1.cd_education_status = cd2.cd_education_status
     and
     ws_sales_price between 150.00 and 200.00
    )
   )
   and
   (
    (
     ca_country = 'United States'
     and
     ca_state in ('IN', 'OH', 'NJ')
     and ws_net_profit between 100 and 200  
    )
    or
    (
     ca_country = 'United States'
     and
     ca_state in ('WI', 'CT', 'KY')
     and ws_net_profit between 150 and 300  
    )
    or
    (
     ca_country = 'United States'
     and
     ca_state in ('LA', 'IA', 'AR')
     and ws_net_profit between 50 and 250  
    )
   )
group by r_reason_desc
order by substr(r_reason_desc,1,20)
        ,avg(ws_quantity)
        ,avg(wr_refunded_cash)
        ,avg(wr_fee)
limit 100;

Measured execution times:
4000MB: 411
4000MB-sp(lt0.2/ts5/min10/max100): 414
8000MB: 406
8000MB-sp(lt0.2/ts5/min10/max100): 425
Query Q86 (degree of parallelism: 2)

select   
    sum(ws_net_paid) as total_sum
   ,i_category
   ,i_class
   ,grouping(i_category)+grouping(i_class) as lochierarchy
   ,rank() over (
 	partition by grouping(i_category)+grouping(i_class),
 	case when grouping(i_class) = 0 then i_category end 
 	order by sum(ws_net_paid) desc) as rank_within_parent
 from
    web_sales
   ,date_dim       d1
   ,item
 where
    d1.d_month_seq between 1200 and 1200+11
 and d1.d_date_sk = ws_sold_date_sk
 and i_item_sk  = ws_item_sk
 group by rollup(i_category,i_class)
 order by
   lochierarchy desc,
   case when lochierarchy = 0 then i_category end,
   rank_within_parent
 limit 100;

Measured execution times:
4000MB: 930
4000MB-sp(lt0.2/ts5/min10/max100): 865
8000MB: 893
8000MB-sp(lt0.2/ts5/min10/max100): 903
Query Q86 (degree of parallelism: 4)

select   
    sum(ws_net_paid) as total_sum
   ,i_category
   ,i_class
   ,grouping(i_category)+grouping(i_class) as lochierarchy
   ,rank() over (
 	partition by grouping(i_category)+grouping(i_class),
 	case when grouping(i_class) = 0 then i_category end 
 	order by sum(ws_net_paid) desc) as rank_within_parent
 from
    web_sales
   ,date_dim       d1
   ,item
 where
    d1.d_month_seq between 1200 and 1200+11
 and d1.d_date_sk = ws_sold_date_sk
 and i_item_sk  = ws_item_sk
 group by rollup(i_category,i_class)
 order by
   lochierarchy desc,
   case when lochierarchy = 0 then i_category end,
   rank_within_parent
 limit 100;

Measured execution times:
4000MB: 576
4000MB-sp(lt0.2/ts5/min10/max100): 606
8000MB: 588
8000MB-sp(lt0.2/ts5/min10/max100): 569
Query Q86 (degree of parallelism: 8)

select   
    sum(ws_net_paid) as total_sum
   ,i_category
   ,i_class
   ,grouping(i_category)+grouping(i_class) as lochierarchy
   ,rank() over (
 	partition by grouping(i_category)+grouping(i_class),
 	case when grouping(i_class) = 0 then i_category end 
 	order by sum(ws_net_paid) desc) as rank_within_parent
 from
    web_sales
   ,date_dim       d1
   ,item
 where
    d1.d_month_seq between 1200 and 1200+11
 and d1.d_date_sk = ws_sold_date_sk
 and i_item_sk  = ws_item_sk
 group by rollup(i_category,i_class)
 order by
   lochierarchy desc,
   case when lochierarchy = 0 then i_category end,
   rank_within_parent
 limit 100;

Measured execution times:
4000MB: 491
4000MB-sp(lt0.2/ts5/min10/max100): 471
8000MB: 485
8000MB-sp(lt0.2/ts5/min10/max100): 469
Query Q87 (degree of parallelism: 2)

select count(*) 
from ((select distinct c_last_name, c_first_name, d_date
       from store_sales, date_dim, customer
       where store_sales.ss_sold_date_sk = date_dim.d_date_sk
         and store_sales.ss_customer_sk = customer.c_customer_sk
         and d_month_seq between 1200 and 1200+11)
       except
      (select distinct c_last_name, c_first_name, d_date
       from catalog_sales, date_dim, customer
       where catalog_sales.cs_sold_date_sk = date_dim.d_date_sk
         and catalog_sales.cs_bill_customer_sk = customer.c_customer_sk
         and d_month_seq between 1200 and 1200+11)
       except
      (select distinct c_last_name, c_first_name, d_date
       from web_sales, date_dim, customer
       where web_sales.ws_sold_date_sk = date_dim.d_date_sk
         and web_sales.ws_bill_customer_sk = customer.c_customer_sk
         and d_month_seq between 1200 and 1200+11)
) cool_cust
;

Measured execution times:
4000MB: 5908
4000MB-sp(lt0.2/ts5/min10/max100): 6638
8000MB: 5837
8000MB-sp(lt0.2/ts5/min10/max100): 6273