--
-- 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;