greptimedb/tests/cases/distributed/optimizer/windowed_sort.result

-- test if handle aliased sort expr correctly
CREATE TABLE IF NOT EXISTS lightning (
  collect_time TIMESTAMP(9) NOT NULL,
  collect_time_utc TIMESTAMP(9) NULL,
  peak_current FLOAT NULL,
  TIME INDEX (collect_time)
)
ENGINE=mito
WITH(
  'compaction.twcs.time_window' = '7d',
  'compaction.type' = 'twcs'
);

Affected Rows: 0

-- insert some data, with collect_time  = collect_time_utc + 8 hour
INSERT INTO lightning VALUES 
  ('2025-03-01 16:00:00', '2025-03-01 08:00:00', 1.0),
  ('2025-03-01 17:00:00', '2025-03-01 09:00:00', 1.0),
  ('2025-03-01 18:00:00', '2025-03-01 10:00:00', 1.0),
  ('2025-03-01 19:00:00', '2025-03-01 11:00:00', 1.0),
  ('2025-03-01 20:00:00', '2025-03-01 12:00:00', 1.0),
  ('2025-03-01 21:00:00', '2025-03-01 13:00:00', 1.0),
  ('2025-03-01 22:00:00', '2025-03-01 14:00:00', 1.0),
  ('2025-03-01 23:00:00', '2025-03-01 15:00:00', 1.0)
;

Affected Rows: 8

-- notice the alias make order by not applicable for window sort
-- note due to alias there is a tiny difference in the output between standalone/distributed
-- which is acceptable
SELECT
  collect_time_utc AS collect_time,
  peak_current,
FROM
  lightning
ORDER BY
  collect_time ASC;

+---------------------+--------------+
| collect_time        | peak_current |
+---------------------+--------------+
| 2025-03-01T08:00:00 | 1.0          |
| 2025-03-01T09:00:00 | 1.0          |
| 2025-03-01T10:00:00 | 1.0          |
| 2025-03-01T11:00:00 | 1.0          |
| 2025-03-01T12:00:00 | 1.0          |
| 2025-03-01T13:00:00 | 1.0          |
| 2025-03-01T14:00:00 | 1.0          |
| 2025-03-01T15:00:00 | 1.0          |
+---------------------+--------------+

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (peers.*) REDACTED
-- SQLNESS REPLACE (metrics.*) REDACTED
-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
EXPLAIN ANALYZE SELECT
  collect_time_utc AS collect_time,
  peak_current,
FROM
  lightning
ORDER BY
  collect_time ASC;

+-+-+-+
| stage | node | plan_|
+-+-+-+
| 0_| 0_|_CooperativeExec REDACTED
|_|_|_MergeScanExec: REDACTED
|_|_|_|
| 1_| 0_|_ProjectionExec: expr=[collect_time_utc@0 as collect_time, peak_current@1 as peak_current] REDACTED
|_|_|_SortPreservingMergeExec: [collect_time_utc@0 ASC NULLS LAST] REDACTED
|_|_|_SortExec: expr=[collect_time_utc@0 ASC NULLS LAST], preserve_partitioning=[true] REDACTED
|_|_|_SeqScan: region=REDACTED, "partition_count":{"count":1, "mem_ranges":1, "files":0, "file_ranges":0} REDACTED
|_|_|_|
|_|_| Total rows: 8_|
+-+-+-+

-- also try alias with different name with time index
SELECT
  collect_time_utc AS collect_time_0,
  peak_current,
FROM
  lightning
ORDER BY
  collect_time_0 ASC;

+---------------------+--------------+
| collect_time_0      | peak_current |
+---------------------+--------------+
| 2025-03-01T08:00:00 | 1.0          |
| 2025-03-01T09:00:00 | 1.0          |
| 2025-03-01T10:00:00 | 1.0          |
| 2025-03-01T11:00:00 | 1.0          |
| 2025-03-01T12:00:00 | 1.0          |
| 2025-03-01T13:00:00 | 1.0          |
| 2025-03-01T14:00:00 | 1.0          |
| 2025-03-01T15:00:00 | 1.0          |
+---------------------+--------------+

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (peers.*) REDACTED
-- SQLNESS REPLACE (metrics.*) REDACTED
-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
-- SQLNESS REPLACE num_ranges=\d+ num_ranges=REDACTED
EXPLAIN ANALYZE SELECT
  collect_time_utc AS collect_time_0,
  peak_current,
FROM
  lightning
ORDER BY
  collect_time_0 ASC;

+-+-+-+
| stage | node | plan_|
+-+-+-+
| 0_| 0_|_CooperativeExec REDACTED
|_|_|_MergeScanExec: REDACTED
|_|_|_|
| 1_| 0_|_ProjectionExec: expr=[collect_time_utc@0 as collect_time_0, peak_current@1 as peak_current] REDACTED
|_|_|_SortPreservingMergeExec: [collect_time_utc@0 ASC NULLS LAST] REDACTED
|_|_|_SortExec: expr=[collect_time_utc@0 ASC NULLS LAST], preserve_partitioning=[true] REDACTED
|_|_|_SeqScan: region=REDACTED, "partition_count":{"count":1, "mem_ranges":1, "files":0, "file_ranges":0} REDACTED
|_|_|_|
|_|_| Total rows: 8_|
+-+-+-+

-- try more complex alias with time index
SELECT
  collect_time AS true_collect_time,
  collect_time_utc AS collect_time,
  peak_current,
FROM
  lightning
ORDER BY
  true_collect_time DESC;

+---------------------+---------------------+--------------+
| true_collect_time   | collect_time        | peak_current |
+---------------------+---------------------+--------------+
| 2025-03-01T23:00:00 | 2025-03-01T15:00:00 | 1.0          |
| 2025-03-01T22:00:00 | 2025-03-01T14:00:00 | 1.0          |
| 2025-03-01T21:00:00 | 2025-03-01T13:00:00 | 1.0          |
| 2025-03-01T20:00:00 | 2025-03-01T12:00:00 | 1.0          |
| 2025-03-01T19:00:00 | 2025-03-01T11:00:00 | 1.0          |
| 2025-03-01T18:00:00 | 2025-03-01T10:00:00 | 1.0          |
| 2025-03-01T17:00:00 | 2025-03-01T09:00:00 | 1.0          |
| 2025-03-01T16:00:00 | 2025-03-01T08:00:00 | 1.0          |
+---------------------+---------------------+--------------+

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (peers.*) REDACTED
-- SQLNESS REPLACE (metrics.*) REDACTED
-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
-- SQLNESS REPLACE num_ranges=\d+ num_ranges=REDACTED
EXPLAIN ANALYZE SELECT
  collect_time AS true_collect_time,
  collect_time_utc AS collect_time,
  peak_current,
FROM
  lightning
ORDER BY
  true_collect_time DESC;

+-+-+-+
| stage | node | plan_|
+-+-+-+
| 0_| 0_|_CooperativeExec REDACTED
|_|_|_MergeScanExec: REDACTED
|_|_|_|
| 1_| 0_|_ProjectionExec: expr=[collect_time@0 as true_collect_time, collect_time_utc@1 as collect_time, peak_current@2 as peak_current] REDACTED
|_|_|_SortPreservingMergeExec: [collect_time@0 DESC] REDACTED
|_|_|_WindowedSortExec: expr=collect_time@0 DESC num_ranges=REDACTED REDACTED
|_|_|_PartSortExec: expr=collect_time@0 DESC num_ranges=REDACTED REDACTED
|_|_|_SeqScan: region=REDACTED, "partition_count":{"count":1, "mem_ranges":1, "files":0, "file_ranges":0} REDACTED
|_|_|_|
|_|_| Total rows: 8_|
+-+-+-+

-- this should also do windowed sort
SELECT
  collect_time_utc AS collect_time,
  collect_time AS true_collect_time,
  peak_current,
FROM
  lightning
ORDER BY
  true_collect_time DESC;

+---------------------+---------------------+--------------+
| collect_time        | true_collect_time   | peak_current |
+---------------------+---------------------+--------------+
| 2025-03-01T15:00:00 | 2025-03-01T23:00:00 | 1.0          |
| 2025-03-01T14:00:00 | 2025-03-01T22:00:00 | 1.0          |
| 2025-03-01T13:00:00 | 2025-03-01T21:00:00 | 1.0          |
| 2025-03-01T12:00:00 | 2025-03-01T20:00:00 | 1.0          |
| 2025-03-01T11:00:00 | 2025-03-01T19:00:00 | 1.0          |
| 2025-03-01T10:00:00 | 2025-03-01T18:00:00 | 1.0          |
| 2025-03-01T09:00:00 | 2025-03-01T17:00:00 | 1.0          |
| 2025-03-01T08:00:00 | 2025-03-01T16:00:00 | 1.0          |
+---------------------+---------------------+--------------+

-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (peers.*) REDACTED
-- SQLNESS REPLACE (metrics.*) REDACTED
-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
-- SQLNESS REPLACE num_ranges=\d+ num_ranges=REDACTED
EXPLAIN ANALYZE SELECT
  collect_time_utc AS collect_time,
  collect_time AS true_collect_time,
  peak_current,
FROM
  lightning
ORDER BY
  true_collect_time DESC;

+-+-+-+
| stage | node | plan_|
+-+-+-+
| 0_| 0_|_CooperativeExec REDACTED
|_|_|_MergeScanExec: REDACTED
|_|_|_|
| 1_| 0_|_ProjectionExec: expr=[collect_time_utc@0 as collect_time, collect_time@1 as true_collect_time, peak_current@2 as peak_current] REDACTED
|_|_|_SortPreservingMergeExec: [collect_time@1 DESC] REDACTED
|_|_|_ProjectionExec: expr=[collect_time_utc@1 as collect_time_utc, collect_time@0 as collect_time, peak_current@2 as peak_current] REDACTED
|_|_|_WindowedSortExec: expr=collect_time@0 DESC num_ranges=REDACTED REDACTED
|_|_|_PartSortExec: expr=collect_time@0 DESC num_ranges=REDACTED REDACTED
|_|_|_SeqScan: region=REDACTED, "partition_count":{"count":1, "mem_ranges":1, "files":0, "file_ranges":0} REDACTED
|_|_|_|
|_|_| Total rows: 8_|
+-+-+-+

DROP TABLE lightning;

Affected Rows: 0