|  | -- | 
|  | -- Copyright 2019 The Android Open Source Project | 
|  | -- | 
|  | -- Licensed 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 | 
|  | -- | 
|  | --     https://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 | 
|  | ts, | 
|  | lead(ts, 1, ts) OVER (PARTITION BY name ORDER BY ts) - ts AS dur, | 
|  | value | 
|  | FROM counter c | 
|  | INNER JOIN cpu_counter_track t ON t.id = c.track_id | 
|  | WHERE cpu = 1; |