DROP TABLE IF EXISTS partsupp;
DROP TABLE IF EXISTS part;
DROP TABLE IF EXISTS supplier;
DROP TABLE IF EXISTS q16_parts_supplier_relationship;
DROP TABLE IF EXISTS q16_tmp;
DROP TABLE IF EXISTS supplier_tmp;

-- create the tables and load the data
create external table part (P_PARTKEY INT, P_NAME STRING, P_MFGR STRING, P_BRAND STRING, P_TYPE STRING, P_SIZE INT, P_CONTAINER STRING, P_RETAILPRICE DOUBLE, P_COMMENT STRING) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' STORED AS TEXTFILE LOCATION '/tpch/100/part';
create external table partsupp (PS_PARTKEY INT, PS_SUPPKEY INT, PS_AVAILQTY INT, PS_SUPPLYCOST DOUBLE, PS_COMMENT STRING) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' STORED AS TEXTFILE LOCATION'/tpch/100/partsupp';
create external table supplier (S_SUPPKEY INT, S_NAME STRING, S_ADDRESS STRING, S_NATIONKEY INT, S_PHONE STRING, S_ACCTBAL DOUBLE, S_COMMENT STRING) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' STORED AS TEXTFILE LOCATION '/tpch/100/supplier';

-- create the result table
create table q16_parts_supplier_relationship(p_brand string, p_type string, p_size int, supplier_cnt int);
create table q16_tmp(p_brand string, p_type string, p_size int, ps_suppkey int);
create table supplier_tmp(s_suppkey int);

-- the query
insert overwrite table supplier_tmp
select 
  s_suppkey
from 
  supplier
where 
  not s_comment like '%Customer%Complaints%';

insert overwrite table q16_tmp
select 
  p_brand, p_type, p_size, ps_suppkey
from 
  	part p join partsupp ps 
  on 
    p.p_partkey = ps.ps_partkey and p.p_brand <> 'Brand#45' 
    and not p.p_type like 'MEDIUM POLISHED%'
  join supplier_tmp s 
  on 
    ps.ps_suppkey = s.s_suppkey;

insert overwrite table q16_parts_supplier_relationship
select 
  p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt
from 
  (select 
     * 
   from
     q16_tmp 
   where p_size = 49 or p_size = 14 or p_size = 23 or
         p_size = 45 or p_size = 19 or p_size = 3 or
         p_size = 36 or p_size = 9
) q16_all
group by p_brand, p_type, p_size
order by supplier_cnt desc, p_brand, p_type, p_size;