| /* |
| * 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. |
| */ |
| |
| |
| USE TinySocial; |
| |
| WITH nested_msgs AS |
| ( |
| SELECT fu.id id, fu.name name, |
| ( |
| SELECT fu.name name, fm.message msg |
| FROM FacebookMessages fm |
| WHERE fm.`author-id` = fu.id |
| ) AS msgs |
| FROM FacebookUsers fu |
| ) |
| |
| SELECT VALUE nm |
| FROM nested_msgs nm |
| WHERE NOT EXISTS (SELECT * FROM FacebookMessages fm WHERE fm.`author-id` = nm.id) |
| ORDER BY nm.id; |
| |
