Files
greptimedb/tests/cases/distributed/optimizer/range_select_projection.sql
discord9 5ed7128f06 perf(query): prune RangeSelect input projections (#8570)
* perf(query): prune RangeSelect input projections

Signed-off-by: discord9 <discord9@163.com>

* test(query): stabilize RangeSelect projection snapshot

Signed-off-by: discord9 <discord9@163.com>

* test(query): update RangeSelect nested plan snapshot

Signed-off-by: discord9 <discord9@163.com>

* fix(query): handle nested RangeSelect aliases

Signed-off-by: discord9 <discord9@163.com>

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Signed-off-by: discord9 <discord9@163.com>
2026-07-30 07:09:49 +00:00

55 lines
1.7 KiB
SQL

CREATE TABLE range_select_projection (
ts TIMESTAMP TIME INDEX,
station STRING,
"channel" STRING,
unused_tag STRING,
value_a DOUBLE,
value_b DOUBLE,
unused_value DOUBLE,
PRIMARY KEY (station, "channel", unused_tag),
);
INSERT INTO range_select_projection VALUES
(0, 'station-a', 'channel-a', 'unused-a', 1.0, 10.0, 100.0),
(5000, 'station-a', 'channel-a', 'unused-a', 2.0, 20.0, 200.0),
(10000, 'station-a', 'channel-a', 'unused-a', 3.0, 30.0, 300.0),
(0, 'station-a', 'channel-b', 'unused-b', 4.0, 40.0, 400.0),
(5000, 'station-a', 'channel-b', 'unused-b', 5.0, 50.0, 500.0);
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (elapsed_compute.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
-- SQLNESS REPLACE (metrics.*) REDACTED
-- SQLNESS REPLACE (partitioning.*) REDACTED
-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
-- SQLNESS REPLACE Total\s+rows:\s+\d+ Total rows: REDACTED
-- SQLNESS REPLACE Dictionary\(UInt32,\s*Utf8\(([^)]*)\)\) Utf8($1)
EXPLAIN ANALYZE VERBOSE SELECT
ts,
station,
"channel",
avg(value_a + value_b) RANGE '10s' AS avg_value
FROM range_select_projection
WHERE station = 'station-a'
AND unused_tag = 'unused-a'
AND ts >= '1970-01-01 00:00:00'
AND ts < '1970-01-01 00:00:15'
ALIGN '5s' BY (station, "channel")
ORDER BY station, "channel", ts;
SELECT
ts,
station,
"channel",
avg(value_a + value_b) RANGE '10s' AS avg_value
FROM range_select_projection
WHERE station = 'station-a'
AND unused_tag = 'unused-a'
AND ts >= '1970-01-01 00:00:00'
AND ts < '1970-01-01 00:00:15'
ALIGN '5s' BY (station, "channel")
ORDER BY station, "channel", ts;
DROP TABLE range_select_projection;