1-- 2-- Copyright 2019 The Android Open Source Project 3-- 4-- Licensed under the Apache License, Version 2.0 (the "License"); 5-- you may not use this file except in compliance with the License. 6-- You may obtain a copy of the License at 7-- 8-- https://www.apache.org/licenses/LICENSE-2.0 9-- 10-- Unless required by applicable law or agreed to in writing, software 11-- distributed under the License is distributed on an "AS IS" BASIS, 12-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13-- See the License for the specific language governing permissions and 14-- limitations under the License. 15-- 16SELECT 17 value, 18 sum(dur) as dur_sum 19FROM ( 20 SELECT value, 21 lead(ts) OVER (PARTITION BY name, track_id ORDER BY ts) - ts AS dur 22 FROM counter 23 INNER JOIN counter_track ON counter.track_id = counter_track.id 24) 25WHERE value > 0 26GROUP BY value 27ORDER BY dur_sum desc 28