| /* |
| * 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. |
| */ |
| |
| with inv as |
| (select w_warehouse_name,w_warehouse_sk,i_item_sk,d_moy |
| ,stdev,mean, case mean when 0 then null else stdev/mean end cov |
| from(select w_warehouse_name,w_warehouse_sk,i_item_sk,d_moy |
| ,stddev_samp(inv_quantity_on_hand) stdev,avg(inv_quantity_on_hand) mean |
| from inventory |
| ,item |
| ,warehouse |
| ,date_dim |
| where inv_item_sk = i_item_sk |
| and inv_warehouse_sk = w_warehouse_sk |
| and inv_date_sk = d_date_sk |
| and d_year =2001 |
| group by w_warehouse_name,w_warehouse_sk,i_item_sk,d_moy) foo |
| where case mean when 0 then 0 else stdev/mean end > 1) |
| select inv1.w_warehouse_sk,inv1.i_item_sk,inv1.d_moy,inv1.mean, inv1.cov |
| ,inv2.w_warehouse_sk as w_warehouse_sk_2,inv2.i_item_sk as i_item_sk_2,inv2.d_moy as d_moy_2,inv2.mean as mean_2, inv2.cov as cov_2 |
| from inv inv1,inv inv2 |
| where inv1.i_item_sk = inv2.i_item_sk |
| and inv1.w_warehouse_sk = inv2.w_warehouse_sk |
| and inv1.d_moy=1 |
| and inv2.d_moy=1+1 |
| order by inv1.w_warehouse_sk,inv1.i_item_sk,inv1.d_moy,inv1.mean,inv1.cov |
| ,d_moy_2,mean_2, cov_2 |
