This topic describes the performance test method of an AnalyticDB for PostgreSQL V6.0 instance by using TPC-H to test whether relational databases are suitable for data analysis.

Introduction

TPC Benchmark H (TPC-H) is approved by the Transaction Processing Performance Council (TPC) to illustrate decision support systems. TPC-H is used in academia and industries to evaluate the performance of decision support applications. TPC-H models data in production environments to simulate the data warehouse of a sales system. The warehouse contains eight relationships and the data volume ranges from 1 GB to 3 TB. The benchmark includes 22 queries to evaluate the system response time when the system processes each query. The response time is the time consumed between the query submission and result return. The test result displays the query processing capability of the system. For more information, see TPC-H specifications.

Logical relationships of eight tables

Data volume

The data volume affects the query speed. In TPC-H, the scale factor (SF) is used to describe the data volume. One SF is equal to one GB, and 1,000 SF is equal to one TB. The eight tables contain 1 SF of data in total, excluding the space occupied by indexes. You must reserve more than 1 SF of data space.

Test specifications

Select one of the following AnalyticDB for PostgreSQL V6.0 specifications for the test instance:

* Standard SSDs or enhanced SSDs, one core per node, and 64 nodes per instance.

* Standard SSDs or enhanced SSDs, four cores per node, and 32 nodes per instance.

Use standard SQL queries provided by TPC-H.

Test procedure

1. Create an ECS instance

Create an ECS instance to generate 1 TB of data, upload data to the database, and test the client. We recommend that you create an ECS instance of the ecs.g6.4xlarge instance type that uses a 2 TB enhanced SSD and runs CentOS.

2. Create an AnalyticDB for PostgreSQL V6.0 instance

The instance must be in the same region, zone, and VPC as the ECS instance.

3. Generate 1 TB of test data for TPC-H

  • Log on to the ECS instance by using an SSH key pair and download the TPC-H dbgen program. An executable program dbgen/qgen is generated in the dbgen directory after compilation.
    git clone https://github.com/gregrahn/tpch-kit.git
    cd tpch-kit/dbgen
    make
* Generate 1 TB of data and run.
./dbgen --help

* Run the following command to view how to generate data:

./dbgen -vf -s 1000

* Execute the following shell script to concurrently generate a dataset composed of 10 data files:

for((i=1;i<=10;i++));
do
   ./dbgen -s 1000 -S $i -C 10 -f &
done 
* A vertical bar (|) is added at the end of each line in the generated TBL file. Execute the following shell script to delete the vertical bars by using the sed command:
sed -i 's/. $//' ./region.tbl &
sed -i 's/. $//' ./nation.tbl &
for((i=1;i<=10;i++));
do
    sed -i 's/. $//' ./lineitem.tbl.$i &
    sed -i 's/. $//' ./orders.tbl.$i &
    sed -i 's/. $//' ./customer.tbl.$i &
    sed -i 's/. $//' ./partsupp.tbl.$i &
    sed -i 's/. $//' ./part.tbl.$i &
    sed -i 's/. $//' ./supplier.tbl.$i &
done

Create tables

Column store tables are suitable for vector computing and the Just-in-time (JIT) compilation, and can access data and perform statistics more efficiently. Therefore, the table creation statements perform the following operations:

  • Create append-optimized (AO) column store tables.
  • Disable data compression.
  • Set tables to replicated tables.
create table nation (    
    n_nationkey  integer not null,    
    n_name       char(25) not null,    
    n_regionkey  integer not null,    
    n_comment    varchar(152))
with (appendonly=true, orientation=column)
distributed REPLICATED;

create table region (    
    r_regionkey  integer not null,    
    r_name       char(25) not null,    
    r_comment    varchar(152))
with (appendonly=true, orientation=column)
distributed REPLICATED;

create table part (    
    p_partkey     integer not null,    
    p_name        varchar(55) not null,    
    p_mfgr        char(25) not null,        
    p_brand       char(10) not null,    
    p_type        varchar(25) not null,    
    p_size        integer not null,    
    p_container   char(10) not null,    
    p_retailprice DECIMAL(15,2) not null,    
    p_comment     varchar(23) not null)
with (appendonly=true, orientation=column)
distributed by (p_partkey);

create table supplier (    
    s_suppkey     integer not null,    
    s_name        char(25) not null,    
    s_address     varchar(40) not null,    
    s_nationkey   integer not null,    
    s_phone       char(15) not null,    
    s_acctbal     DECIMAL(15,2) not null,    
    s_comment     varchar(101) not null)
with (appendonly=true, orientation=column)
distributed by (s_suppkey);

create table partsupp (    
    ps_partkey     integer not null,    
    ps_suppkey     integer not null,    
    ps_availqty    integer not null,    
    ps_supplycost  DECIMAL(15,2)  not null,    
    ps_comment     varchar(199) not null)
with (appendonly=true, orientation=column)
distributed by (ps_partkey);

create table customer (    
    c_custkey     integer not null,    
    c_name        varchar(25) not null,    
    c_address     varchar(40) not null,    
    c_nationkey   integer not null,    
    c_phone       char(15) not null,    
    c_acctbal     DECIMAL(15,2)  not null,    
    c_mktsegment  char(10) not null,    
    c_comment     varchar(117) not null)
with (appendonly=true, orientation=column)
distributed by (c_custkey);

create table orders (    
    o_orderkey       bigint not null,    
    o_custkey        integer not null,    
    o_orderstatus    char(1) not null,    
    o_totalprice     DECIMAL(15,2) not null,    
    o_orderdate      date not null,    
    o_orderpriority  char(15) not null,    
    o_clerk          char(15) not null,    
    o_shippriority   integer not null,    
    o_comment        varchar(79) not null)
with (appendonly=true, orientation=column)
distributed by (o_orderkey);

create table lineitem (    
    l_orderkey    bigint not null,        
    l_partkey     integer not null,    
    l_suppkey     integer not null,    
    l_linenumber  integer not null,    
    l_quantity    DECIMAL(15,2) not null,    
    l_extendedprice  DECIMAL(15,2) not null,    
    l_discount    DECIMAL(15,2) not null,    
    l_tax         DECIMAL(15,2) not null,    
    l_returnflag  char(1) not null,    
    l_linestatus  char(1) not null,    
    l_shipdate    date not null,    
    l_commitdate  date not null,    
    l_receiptdate date not null,    
    l_shipinstruct char(25) not null,   
    l_shipmode     char(10) not null,    
    l_comment      varchar(44) not null)
with (appendonly=true, orientation=column)
distributed by (l_orderkey);

Import data

You can use one of the following methods to import data:

  • Execute the COPY statements.
  • Use OSS external tables.

The methods are described as follows.

Execute the COPY statements to import data

Execute the following SQL script:

\copy nation from '/data/tpch_1t/nation.tbl' DELIMITER '|';
\copy region from '/data/tpch_1t/region.tbl' DELIMITER '|';
\copy supplier from '/data/tpch_1t/supplier.tbl' DELIMITER '|';
\copy part from '/data/tpch_1t/part.tbl' DELIMITER '|';
\copy partsupp from '/data/tpch_1t/partsupp.tbl' DELIMITER '|';
\copy customer from '/data/tpch_1t/customer.tbl' DELIMITER '|';
\copy orders from '/data/tpch_1t/orders.tbl' DELIMITER '|';
\copy lineitem from '/data/tpch_1t/lineitem.tbl' DELIMITER '|';				

Replace the example path of the TBL file with the actual path. For more information about the shell script, see the shell script of table creation. You can also use psql to connect to the database and execute the SQL script. To improve the import efficiency ensured by the ECS instance network bandwidth, you can use multiple psql connections to execute COPY statements concurrently.

Use external tables to import data

Upload the generated data file to OSS.
./ossutil64 cp -r <TBL file directory> oss://<oss bucket>/<directory>/ 
               -i <AccessKey ID> -k <Access Key Secret> 
               -e <EndPoint>

For more information, see Import or export OSS data by using OSS external tables.

Create OSS external tables

create readable external table ext_nation ( n_nationkey int, n_name varchar(25), n_regionkey integer, 
    n_comment varchar(152)) 
    location('oss://oss-cn-beijing.aliyuncs.com 
    filepath=data/tpch_data_1000x/nation.tbl 
    id=$AccessKey key=$AccessKeySecret 
    bucket=oss-y') FORMAT 'TEXT' (DELIMITER '|' ) ;


create readable external table ext_region ( R_REGIONKEY int, R_NAME CHAR(25),R_COMMENT VARCHAR(152)) 
    location('oss://oss-cn-beijing.aliyuncs.com 
    filepath=data/tpch_data_1000x/region.tbl 
    id=$AccessKey key=$AccessKeySecret 
    bucket=oss-y') FORMAT 'TEXT' (DELIMITER '|' ) ;

CREATE readable external TABLE ext_lineitem ( l_orderkey bigint, l_partkey bigint, l_suppkey bigint, 
  l_linenumber bigint, l_quantity double precision, l_extendedprice double precision, 
  l_discount double precision, l_tax double precision, l_returnflag CHAR(1), 
  l_linestatus CHAR(1), l_shipdate DATE, l_commitdate DATE, l_receiptdate DATE, 
  l_shipinstruct CHAR(25), l_shipmode CHAR(10), l_comment VARCHAR(44)) 
    location('oss://oss-cn-beijing.aliyuncs.com 
    filepath=data/tpch_data_1000x/lineitem.tbl 
    id= $AccessKey key= $AccessKeySecret 
    bucket=oss-y ') FORMAT 'TEXT' (DELIMITER '|' ) ;

CREATE readable external TABLE ext_orders ( o_orderkey bigint , o_custkey bigint , o_orderstatus CHAR(1) , 
  o_totalprice double precision, o_orderdate DATE , o_orderpriority CHAR(15) , o_clerk CHAR(15) , 
  o_shippriority bigint , o_comment VARCHAR(79) ) 
    location('oss://oss-cn-beijing.aliyuncs.com 
    filepath=data/tpch_data_1000x/orders.tbl 
    id=$AccessKey key=$AccessKeySecret  
    bucket=oss-y') FORMAT 'TEXT' (DELIMITER '|' ) ;

CREATE readable external TABLE ext_part ( p_partkey bigint , p_name VARCHAR(55) , p_mfgr CHAR(25) , 
  p_brand CHAR(10) , p_type VARCHAR(25) , p_size bigint , p_container CHAR(10) , 
  p_retailprice double precision , p_comment VARCHAR(23) ) 
    location('oss://oss-cn-beijing.aliyuncs.com 
    filepath=data/tpch_data_1000x/part.tbl 
    id= $AccessKey key= $AccessKeySecret 
    bucket=oss-y') FORMAT 'TEXT' (DELIMITER '|' ) ;

CREATE readable external TABLE ext_partsupp ( ps_partkey bigint , ps_suppkey bigint , 
  ps_availqty bigint , ps_supplycost double precision , ps_comment VARCHAR(199) ) 
    location('oss://oss-cn-beijing.aliyuncs.com 
    filepath=data/tpch_data_1000x/partsupp.tbl 
    id= $AccessKey key= $AccessKeySecret 
    bucket=oss-y') FORMAT 'TEXT' (DELIMITER '|' ) ;

CREATE readable external TABLE ext_supplier ( s_suppkey bigint , s_name CHAR(25) , 
  s_address VARCHAR(40) , s_nationkey bigint , s_phone CHAR(15) , s_acctbal DECIMAL(15,2) , 
  s_comment VARCHAR(101) ) 
    location('oss://oss-cn-beijing.aliyuncs.com 
    filepath=data/tpch_data_1000x/supplier.tbl 
    id= $AccessKey key= $AccessKeySecret
    bucket=oss-y') FORMAT 'TEXT' (DELIMITER '|' ) ;

CREATE readable external TABLE ext_customer ( c_custkey bigint , c_name VARCHAR(25) , 
  c_address VARCHAR(40) , c_nationkey bigint , c_phone CHAR(15) , c_acctbal double precision , 
  c_mktsegment CHAR(10) , c_comment VARCHAR(117) ) 
    location('oss://oss-cn-beijing.aliyuncs.com 
    filepath=data/tpch_data_1000x/customer.tbl 
    id= $AccessKey key= $AccessKeySecret
    bucket=oss-y') FORMAT 'TEXT' (DELIMITER '|' ) ;

Write TPC-H data from OSS external tables to the AnalyticDB for PostgreSQL instance

insert into nation select * from ext_nation;
insert into region select * from ext_region;
insert into lineitem select * from ext_lineitem;
insert into orders select * from ext_orders;
insert into customer select * from ext_customer;
insert into part select * from ext_part;
insert into partsupp select * from ext_partsupp;
insert into supplier select * from ext_supplier;

Data is imported. Perform the following steps to execute queries.

Collect table statistics

analyze nation;
analyze region;
analyze lineitem;
analyze orders;
analyze customer;
analyze part;
analyze partsupp;
analyze supplier;

Execute queries

Execute the following shell script to start the test. You can also use clients such as psql to execute SQL queries one by one. The 22 SQL queries are listed in the lower part of this topic.

Accelerate queries

The vector computing acceleration engine for AnalyticDB for PostgreSQL V6.0, Odyssey, can double query performance in TPC-H scenarios.

Usage:

Set enable_odyssey to on at the session level to enable Odyssey. Execute the following SQL statement:
set enable_odyssey = on;
Set enable_odyssey to off to disable Odyssey.
set enable_odyssey = off;

If you execute the following script to execute the 22 SQL queries, you must add set enable_odyssey = on; at the beginning of each query.

Execute all queries and record the time consumed by each query and the overall time consumed
total_cost=0

for i in {1..22}
do
        echo "begin run Q${i}, query/q$i.sql , `date`"
        begin_time=`date +%s. %N`
        #psql -h ${instance endpoint} -p ${port} -U ${database user} -f query/q${i}.sql > ./log/log_q${i}.out
        rc=$?
        end_time=`date +%s. %N`
        cost=`echo "$end_time-$begin_time"|bc`
        total_cost=`echo "$total_cost+$cost"|bc`
        if [ $rc -ne 0 ] ; then
              printf "run Q%s fail, cost: %.2f, totalCost: %.2f, `date`\n" $i $cost $total_cost
         else
              printf "run Q%s succ, cost: %.2f, totalCost: %.2f, `date`\n" $i $cost $total_cost
         fi
done

Test results

The following table describes the number of data entries in each table. The total amount of data is 1 TB, excluding indexes.
Table name Data entries
customer 15000w
lineitem 600000w
nation 25
orders 150000w
part 20000w
partsupp 80000w
region 5
supplier 1000w
The following table describes the execution duration.
Total execution duration (Unit: seconds) 1-core CPU, 64 nodes, standard SSD or enhanced SSD 4-core CPU, 32 nodes, standard SSD or enhanced SSD 4-core CPU, 32 nodes, standard SSD or enhanced SSD, Odyssey enabled
Total 3703.56 2179.85 1258.24
Q1 338.58 399.38 171.05
Q2 30.38 25.32 12.24
Q3 105.71 56.91 38.26
Q4 84.33 54.26 20.20
Q5 148.58 145.64 118.72
Q6 34.44 30.61 21.19
Q7 179.93 71.43 63.79
Q8 89.64 73.58 37.84
Q9 416.47 174.09 169.28
Q10 71.54 51.56 36.96
Q11 24.82 11.63 4.56
Q12 46.12 44.25 27.74
Q13 119.61 59.13 40.00
Q14 66.86 27.90 15.18
Q15 120.14 48.62 26.27
Q16 24.07 19.15 13.02
Q17 897.21 294.83 178.73
Q18 284.00 293.15 98.39
Q19 78.82 41.84 48.15
Q20 180.50 61.87 32.22
Q21 240.50 151.44 58.85
Q22 121.30 43.26 25.60

22 SQL queries

-- Q1
-- Enable Odyssey.
set enable_odyssey = on;
select
    l_returnflag,
    l_linestatus,
    sum(l_quantity) as sum_qty,
    sum(l_extendedprice) as sum_base_price,
    sum(l_extendedprice * (1 - l_discount)) as sum_disc_price,
    sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) as sum_charge,
    avg(l_quantity) as avg_qty,
    avg(l_extendedprice) as avg_price,
    avg(l_discount) as avg_disc,
    count(*) as count_order
from
    lineitem
where
    l_shipdate <= date '1998-12-01' - interval '93 day'
group by
    l_returnflag,
    l_linestatus
order by
    l_returnflag,
    l_linestatus;

-- Q2
-- Enable Odyssey.
set enable_odyssey = on;
select
    s_acctbal,
    s_name,
    n_name,
    p_partkey,
    p_mfgr,
    s_address,
    s_phone,
    s_comment
from
    part,
    supplier,
    partsupp,
    nation,
    region
where
    p_partkey = ps_partkey
    and s_suppkey = ps_suppkey
    and p_size = 23
    and p_type like '%STEEL'
    and s_nationkey = n_nationkey
    and n_regionkey = r_regionkey
    and r_name = 'EUROPE'
    and ps_supplycost = (
        select
            min(ps_supplycost)
        from
            partsupp,
            supplier,
            nation,
            region
        where
            p_partkey = ps_partkey
            and s_suppkey = ps_suppkey
            and s_nationkey = n_nationkey
            and n_regionkey = r_regionkey
            and r_name = 'EUROPE'
    )
order by
    s_acctbal desc,
    n_name,
    s_name,
    p_partkey
limit 100;

-- Q3
-- Enable Odyssey.
set enable_odyssey = on;
select
    l_orderkey,
    sum(l_extendedprice * (1 - l_discount)) as revenue,
    o_orderdate,
    o_shippriority
from
    customer,
    orders,
    lineitem
where
    c_mktsegment = 'MACHINERY'
    and c_custkey = o_custkey
    and l_orderkey = o_orderkey
    and o_orderdate < date '1995-03-24'
    and l_shipdate > date '1995-03-24'
group by
    l_orderkey,
    o_orderdate,
    o_shippriority
order by
    revenue desc,
    o_orderdate
limit 10;

-- Q4
-- Enable Odyssey.
set enable_odyssey = on;
select
    o_orderpriority,
    count(*) as order_count
from
    orders
where
    o_orderdate >= date '1996-08-01'
    and o_orderdate < date '1996-08-01' + interval '3' month
    and exists (
        select
            *
        from
            lineitem
        where
            l_orderkey = o_orderkey
            and l_commitdate < l_receiptdate
    )
group by
    o_orderpriority
order by
    o_orderpriority;

-- Q5
-- Enable Odyssey.
set enable_odyssey = on;
select
    n_name,
    sum(l_extendedprice * (1 - l_discount)) as revenue
from
    customer,
    orders,
    lineitem,
    supplier,
    nation,
    region
where
    c_custkey = o_custkey
    and l_orderkey = o_orderkey
    and l_suppkey = s_suppkey
    and c_nationkey = s_nationkey
    and s_nationkey = n_nationkey
    and n_regionkey = r_regionkey
    and r_name = 'MIDDLE EAST'
    and o_orderdate >= date '1994-01-01'
    and o_orderdate < date '1994-01-01' + interval '1' year
group by
    n_name
order by
    revenue desc;

-- Q6
-- Enable Odyssey.
set enable_odyssey = on;
select
    sum(l_extendedprice * l_discount) as revenue
from
    lineitem
where
    l_shipdate >= date '1994-01-01'
    and l_shipdate < date '1994-01-01' + interval '1' year
    and l_discount between 0.06 - 0.01 and 0.06 + 0.01
    and l_quantity < 24;

-- Q7
-- Enable Odyssey.
set enable_odyssey = on;
select
    supp_nation,
    cust_nation,
    l_year,
    sum(volume) as revenue
from
    (
        select
            n1.n_name as supp_nation,
            n2.n_name as cust_nation,
            extract(year from l_shipdate) as l_year,
            l_extendedprice * (1 - l_discount) as volume
        from
            supplier,
            lineitem,
            orders,
            customer,
            nation n1,
            nation n2
        where
            s_suppkey = l_suppkey
            and o_orderkey = l_orderkey
            and c_custkey = o_custkey
            and s_nationkey = n1.n_nationkey
            and c_nationkey = n2.n_nationkey
            and (
                (n1.n_name = 'JORDAN' and n2.n_name = 'INDONESIA')
                or (n1.n_name = 'INDONESIA' and n2.n_name = 'JORDAN')
            )
            and l_shipdate between date '1995-01-01' and date '1996-12-31'
    ) as shipping
group by
    supp_nation,
    cust_nation,
    l_year
order by
    supp_nation,
    cust_nation,
    l_year;

-- Q8
-- Enable Odyssey.
set enable_odyssey = on;
select
    o_year,
    sum(case
        when nation = 'INDONESIA' then volume
        else 0
    end) / sum(volume) as mkt_share
from
    (
        select
            extract(year from o_orderdate) as o_year,
            l_extendedprice * (1 - l_discount) as volume,
            n2.n_name as nation
        from
            part,
            supplier,
            lineitem,
            orders,
            customer,
            nation n1,
            nation n2,
            region
        where
            p_partkey = l_partkey
            and s_suppkey = l_suppkey
            and l_orderkey = o_orderkey
            and o_custkey = c_custkey
            and c_nationkey = n1.n_nationkey
            and n1.n_regionkey = r_regionkey
            and r_name = 'ASIA'
            and s_nationkey = n2.n_nationkey
            and o_orderdate between date '1995-01-01' and date '1996-12-31'
            and p_type = 'STANDARD BRUSHED BRASS'
    ) as all_nations
group by
    o_year
order by
    o_year;

-- Q9
-- Enable Odyssey.
set enable_odyssey = on;
select
    nation,
    o_year,
    sum(amount) as sum_profit
from
    (
        select
            n_name as nation,
            extract(year from o_orderdate) as o_year,
            l_extendedprice * (1 - l_discount) - ps_supplycost * l_quantity as amount
        from
            part,
            supplier,
            lineitem,
            partsupp,
            orders,
            nation
        where
            s_suppkey = l_suppkey
            and ps_suppkey = l_suppkey
            and ps_partkey = l_partkey
            and p_partkey = l_partkey
            and o_orderkey = l_orderkey
            and s_nationkey = n_nationkey
            and p_name like '%chartreuse%'
    ) as profit
group by
    nation,
    o_year
order by
    nation,
    o_year desc;

-- Q10
-- Enable Odyssey.
set enable_odyssey = on;
select
    c_custkey,
    c_name,
    sum(l_extendedprice * (1 - l_discount)) as revenue,
    c_acctbal,
    n_name,
    c_address,
    c_phone,
    c_comment
from
    customer,
    orders,
    lineitem,
    nation
where
    c_custkey = o_custkey
    and l_orderkey = o_orderkey
    and o_orderdate >= date '1994-08-01'
    and o_orderdate < date '1994-08-01' + interval '3' month
    and l_returnflag = 'R'
    and c_nationkey = n_nationkey
group by
    c_custkey,
    c_name,
    c_acctbal,
    c_phone,
    n_name,
    c_address,
    c_comment
order by
    revenue desc
limit 20;

-- Q11
-- Enable Odyssey.
set enable_odyssey = on;
select
    ps_partkey,
    sum(ps_supplycost * ps_availqty) as value
from
    partsupp,
    supplier,
    nation
where
    ps_suppkey = s_suppkey
    and s_nationkey = n_nationkey
    and n_name = 'INDONESIA'
group by
    ps_partkey having
        sum(ps_supplycost * ps_availqty) > (
            select
                sum(ps_supplycost * ps_availqty) * 0.0001000000
            from
                partsupp,
                supplier,
                nation
            where
                ps_suppkey = s_suppkey
                and s_nationkey = n_nationkey
                and n_name = 'INDONESIA'
        )
order by
    value desc;

-- Q12
-- Enable Odyssey.
set enable_odyssey = on;
select
    l_shipmode,
    sum(case
        when o_orderpriority = '1-URGENT'
            or o_orderpriority = '2-HIGH'
            then 1
        else 0
    end) as high_line_count,
    sum(case
        when o_orderpriority <> '1-URGENT'
            and o_orderpriority <> '2-HIGH'
            then 1
        else 0
    end) as low_line_count
from
    orders,
    lineitem
where
    o_orderkey = l_orderkey
    and l_shipmode in ('REG AIR', 'TRUCK')
    and l_commitdate < l_receiptdate
    and l_shipdate < l_commitdate
    and l_receiptdate >= date '1994-01-01'
    and l_receiptdate < date '1994-01-01' + interval '1' year
group by
    l_shipmode
order by
    l_shipmode;

-- Q13
-- Enable Odyssey.
set enable_odyssey = on;
select
    c_count,
    count(*) as custdist
from
    (
        select
            c_custkey,
            count(o_orderkey)
        from
            customer left outer join orders on
                c_custkey = o_custkey
                and o_comment not like '%pending%requests%'
        group by
            c_custkey
    ) as c_orders (c_custkey, c_count)
group by
    c_count
order by
    custdist desc,
    c_count desc;

-- Q14
-- Enable Odyssey.
set enable_odyssey = on;
select
    100.00 * sum(case
        when p_type like 'PROMO%'
            then l_extendedprice * (1 - l_discount)
        else 0
    end) / sum(l_extendedprice * (1 - l_discount)) as promo_revenue
from
    lineitem,
    part
where
    l_partkey = p_partkey
    and l_shipdate >= date '1994-11-01'
    and l_shipdate < date '1994-11-01' + interval '1' month;

-- Q15
-- Enable Odyssey.
set enable_odyssey = on;
create view revenue0 (supplier_no, total_revenue) as
    select
        l_suppkey,
        sum(l_extendedprice * (1 - l_discount))
    from
        lineitem
    where
        l_shipdate >= date '1997-10-01'
        and l_shipdate < date '1997-10-01' + interval '3' month
    group by
        l_suppkey;
select
    s_suppkey,
    s_name,
    s_address,
    s_phone,
    total_revenue
from
    supplier,
    revenue0
where
    s_suppkey = supplier_no
    and total_revenue = (
        select
            max(total_revenue)
        from
            revenue0
    )
order by
    s_suppkey;
drop view revenue0;

-- Q16
-- Enable Odyssey.
set enable_odyssey = on;
select
    p_brand,
    p_type,
    p_size,
    count(distinct ps_suppkey) as supplier_cnt
from
    partsupp,
    part
where
    p_partkey = ps_partkey
    and p_brand <> 'Brand#44'
    and p_type not like 'SMALL BURNISHED%'
    and p_size in (36, 27, 34, 45, 11, 6, 25, 16)
    and ps_suppkey not in (
        select
            s_suppkey
        from
            supplier
        where
            s_comment like '%Customer%Complaints%'
    )
group by
    p_brand,
    p_type,
    p_size
order by
    supplier_cnt desc,
    p_brand,
    p_type,
    p_size;

-- Q17
-- Enable Odyssey.
set enable_odyssey = on;
select
    sum(l_extendedprice) / 7.0 as avg_yearly
from
    lineitem,
    part
where
    p_partkey = l_partkey
    and p_brand = 'Brand#42'
    and p_container = 'JUMBO PACK'
    and l_quantity < (
        select
            0.2 * avg(l_quantity)
        from
            lineitem
        where
            l_partkey = p_partkey
    );

-- Q18
-- Enable Odyssey.
set enable_odyssey = on;
select
    c_name,
    c_custkey,
    o_orderkey,
    o_orderdate,
    o_totalprice,
    sum(l_quantity)
from
    customer,
    orders,
    lineitem
where
    o_orderkey in (
        select
            l_orderkey
        from
            lineitem
        group by
            l_orderkey having
                sum(l_quantity) > 312
    )
    and c_custkey = o_custkey
    and o_orderkey = l_orderkey
group by
    c_name,
    c_custkey,
    o_orderkey,
    o_orderdate,
    o_totalprice
order by
    o_totalprice desc,
    o_orderdate
limit 100;

-- Q19
-- Enable Odyssey.
set enable_odyssey = on;
select
    sum(l_extendedprice* (1 - l_discount)) as revenue
from
    lineitem,
    part
where
    (
        p_partkey = l_partkey
        and p_brand = 'Brand#43'
        and p_container in ('SM CASE', 'SM BOX', 'SM PACK', 'SM PKG')
        and l_quantity >= 5 and l_quantity <= 5 + 10
        and p_size between 1 and 5
        and l_shipmode in ('AIR', 'AIR REG')
        and l_shipinstruct = 'DELIVER IN PERSON'
    )
    or
    (
        p_partkey = l_partkey
        and p_brand = 'Brand#45'
        and p_container in ('MED BAG', 'MED BOX', 'MED PKG', 'MED PACK')
        and l_quantity >= 12 and l_quantity <= 12 + 10
        and p_size between 1 and 10
        and l_shipmode in ('AIR', 'AIR REG')
        and l_shipinstruct = 'DELIVER IN PERSON'
    )
    or
    (
        p_partkey = l_partkey
        and p_brand = 'Brand#11'
        and p_container in ('LG CASE', 'LG BOX', 'LG PACK', 'LG PKG')
        and l_quantity >= 24 and l_quantity <= 24 + 10
        and p_size between 1 and 15
        and l_shipmode in ('AIR', 'AIR REG')
        and l_shipinstruct = 'DELIVER IN PERSON'
    );

-- Q20
-- Enable Odyssey.
set enable_odyssey = on;
select
    s_name,
    s_address
from
    supplier,
    nation
where
    s_suppkey in (
        select
            ps_suppkey
        from
            partsupp
        where
            ps_partkey in (
                select
                    p_partkey
                from
                    part
                where
                    p_name like 'magenta%'
            )
            and ps_availqty > (
                select
                    0.5 * sum(l_quantity)
                from
                    lineitem
                where
                    l_partkey = ps_partkey
                    and l_suppkey = ps_suppkey
                    and l_shipdate >= date '1996-01-01'
                    and l_shipdate < date '1996-01-01' + interval '1' year
            )
    )
    and s_nationkey = n_nationkey
    and n_name = 'RUSSIA'
order by
    s_name;

-- Q21
-- Enable Odyssey.
set enable_odyssey = on;
select
    s_name,
    count(*) as numwait
from
    supplier,
    lineitem l1,
    orders,
    nation
where
    s_suppkey = l1.l_suppkey
    and o_orderkey = l1.l_orderkey
    and o_orderstatus = 'F'
    and l1.l_receiptdate > l1.l_commitdate
    and exists (
        select
            *
        from
            lineitem l2
        where
            l2.l_orderkey = l1.l_orderkey
            and l2.l_suppkey <> l1.l_suppkey
    )
    and not exists (
        select
            *
        from
            lineitem l3
        where
            l3.l_orderkey = l1.l_orderkey
            and l3.l_suppkey <> l1.l_suppkey
            and l3.l_receiptdate > l3.l_commitdate
    )
    and s_nationkey = n_nationkey
    and n_name = 'MOZAMBIQUE'
group by
    s_name
order by
    numwait desc,
    s_name
limit 100;

-- Q22
-- Enable Odyssey.
set enable_odyssey = on;
select
        cntrycode,
        count(*) as numcust,
        sum(c_acctbal) as totacctbal
from
        (
                select
                        substring(c_phone from 1 for 2) as cntrycode,
                        c_acctbal
                from
                        customer
                where
                        substring(c_phone from 1 for 2) in
                                ('13', '31', '23', '29', '30', '18', '17')
                        and c_acctbal > (
                                select
                                        avg(c_acctbal)
                                from
                                        customer
                                where
                                        c_acctbal > 0.00
                                        and substring(c_phone from 1 for 2) in
                                                ('13', '31', '23', '29', '30', '18', '17')
                        )
                        and not exists (
                                select
                                        *
                                from
                                        orders
                                where
                                        o_custkey = c_custkey
                        )
        ) as custsale
group by
        cntrycode
order by
        cntrycode;