diff --git a/resource/tpch/q20_potential_part_promotion.hive b/resource/tpch/q20_potential_part_promotion.hive
new file mode 100644
index 0000000..40ae423
--- /dev/null
+++ b/resource/tpch/q20_potential_part_promotion.hive
@@ -0,0 +1,77 @@
+DROP TABLE partsupp;
+DROP TABLE lineitem;
+DROP TABLE supplier;
+DROP TABLE nation;
+DROP TABLE q20_tmp1;
+DROP TABLE q20_tmp2;
+DROP TABLE q20_tmp3;
+DROP TABLE q20_tmp4;
+DROP TABLE q20_potential_part_promotion;
+
+-- create tables and load data
+create external table lineitem (L_ORDERKEY INT, L_PARTKEY INT, L_SUPPKEY INT, L_LINENUMBER INT, L_QUANTITY DOUBLE, L_EXTENDEDPRICE DOUBLE, L_DISCOUNT DOUBLE, L_TAX DOUBLE, L_RETURNFLAG STRING, L_LINESTATUS STRING, L_SHIPDATE STRING, L_COMMITDATE STRING, L_RECEIPTDATE STRING, L_SHIPINSTRUCT STRING, L_SHIPMODE STRING, L_COMMENT STRING) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' STORED AS TEXTFILE LOCATION '/tpch/10/lineitem';
+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/10/supplier';
+create external table nation (N_NATIONKEY INT, N_NAME STRING, N_REGIONKEY INT, N_COMMENT STRING) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' STORED AS TEXTFILE LOCATION '/tpch/10/nation';
+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/10/partsupp';
+
+-- create the target table
+create table q20_tmp1(p_partkey int);
+create table q20_tmp2(l_partkey int, l_suppkey int, sum_quantity double);
+create table q20_tmp3(ps_suppkey int, ps_availqty int, sum_quantity double);
+create table q20_tmp4(ps_suppkey int);
+create table q20_potential_part_promotion(s_name string, s_address string);
+
+set mapred.min.split.size=536870912;
+
+-- the query
+insert overwrite table q20_tmp1
+select distinct p_partkey
+from
+  part 
+where 
+  p_name like 'forest%';
+
+insert overwrite table q20_tmp2
+select 
+  l_partkey, l_suppkey, 0.5 * sum(l_quantity)
+from
+  lineitem
+where
+  l_shipdate >= '1994-01-01'
+  and l_shipdate < '1995-01-01'
+group by l_partkey, l_suppkey;
+
+insert overwrite table q20_tmp3
+select 
+  ps_suppkey, ps_availqty, sum_quantity
+from  
+  partsupp ps join q20_tmp1 t1 
+  on 
+    ps.ps_partkey = t1.p_partkey
+  join q20_tmp2 t2 
+  on 
+    ps.ps_partkey = t2.l_partkey and ps.ps_suppkey = t2.l_suppkey;
+
+insert overwrite table q20_tmp4
+select 
+  ps_suppkey
+from 
+  q20_tmp3
+where 
+  ps_availqty > sum_quantity
+group by ps_suppkey;
+
+insert overwrite table q20_potential_part_promotion
+select 
+  s_name, s_address
+from 
+  supplier s join nation n
+  on
+    s.s_nationkey = n.n_nationkey
+    and n.n_name = 'CANADA'
+  join q20_tmp4 t4
+  on 
+    s.s_suppkey = t4.ps_suppkey
+order by s_name;
+
+