| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| select asceding.rnk, i1.i_product_name best_performing, i2.i_product_name worst_performing |
| from(select * |
| from (select item_sk,rank() over (order by rank_col asc) rnk |
| from (select ss_item_sk item_sk,avg(ss_net_profit) rank_col |
| from store_sales ss1 |
| where ss_store_sk = 49 |
| group by ss_item_sk |
| having avg(ss_net_profit) > 0.9*(select avg(ss_net_profit) rank_col |
| from store_sales |
| where ss_store_sk = 49 |
| and ss_customer_sk is null |
| group by ss_store_sk))V1)V11 |
| where rnk < 11) asceding, |
| (select * |
| from (select item_sk,rank() over (order by rank_col desc) rnk |
| from (select ss_item_sk item_sk,avg(ss_net_profit) rank_col |
| from store_sales ss1 |
| where ss_store_sk = 49 |
| group by ss_item_sk |
| having avg(ss_net_profit) > 0.9*(select avg(ss_net_profit) rank_col |
| from store_sales |
| where ss_store_sk = 49 |
| and ss_customer_sk is null |
| group by ss_store_sk))V2)V21 |
| where rnk < 11) descending, |
| item i1, |
| item i2 |
| where asceding.rnk = descending.rnk |
| and i1.i_item_sk=asceding.item_sk |
| and i2.i_item_sk=descending.item_sk |
| order by asceding.rnk |
| LIMIT 100 |
