src/trace_processor/metrics/android/upid_span_view.sql

--
-- 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.
--

DROP VIEW IF EXISTS {{table_name}}_span;

CREATE VIEW {{table_name}}_span AS
SELECT
  ts,
  LEAD(ts, 1, (
    SELECT IFNULL(
      end_ts,
      (SELECT end_ts FROM trace_bounds)
    )
    FROM process WHERE upid = ref) + 1
  ) OVER(PARTITION BY counter_id ORDER BY ts) - ts AS dur,
  ref AS upid,
  value AS {{table_name}}_val
FROM counters
WHERE name = '{{counter_name}}' AND ref IS NOT NULL AND ref_type = 'upid';