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https://github.com/GreptimeTeam/greptimedb.git
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2feddca1cb
* feat: include order by to commutativity rule set Signed-off-by: Ruihang Xia <waynestxia@gmail.com> * tune sqlness replace interceptor Signed-off-by: Ruihang Xia <waynestxia@gmail.com> --------- Signed-off-by: Ruihang Xia <waynestxia@gmail.com>
100 lines
2.7 KiB
SQL
100 lines
2.7 KiB
SQL
CREATE TABLE test (a INTEGER, b INTEGER, ts TIMESTAMP TIME INDEX);
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INSERT INTO test VALUES (11, 22, 1), (12, 21, 2), (13, 22, 3);
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select b from test where a = 12;
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SELECT b FROM test ORDER BY a DESC;
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SELECT a, b FROM test ORDER BY a;
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SELECT a, b FROM test ORDER BY a DESC;
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SELECT a, b FROM test ORDER BY b, a;
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SELECT a, b FROM test ORDER BY 2, 1;
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SELECT a, b FROM test ORDER BY b DESC, a;
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SELECT a, b FROM test ORDER BY b, a DESC;
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SELECT a, b FROM test ORDER BY b, a DESC LIMIT 1;
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SELECT a, b FROM test ORDER BY b, a DESC LIMIT 1 OFFSET 1;
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SELECT a, b FROM test ORDER BY b, a DESC OFFSET 1;
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SELECT a, b FROM test WHERE a < 13 ORDER BY b;
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SELECT a, b FROM test WHERE a < 13 ORDER BY 2;
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SELECT a, b FROM test WHERE a < 13 ORDER BY b DESC;
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SELECT b, a FROM test WHERE a < 13 ORDER BY b DESC;
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SELECT b % 2 AS f, SUM(a) FROM test GROUP BY f ORDER BY b % 2;
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SELECT b % 2 AS f, a FROM test ORDER BY b % 2, a;
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SELECT b % 2 AS f, SUM(a) FROM test GROUP BY f ORDER BY f;
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SELECT b % 2 AS f, SUM(a) FROM test GROUP BY f ORDER BY 1;
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SELECT a-10 AS k FROM test UNION SELECT a-10 AS l FROM test ORDER BY k;
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-- ORDER BY on alias in right-most query
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-- CONTROVERSIAL: SQLite allows both "k" and "l" to be referenced here, Postgres and MonetDB give an error.
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SELECT a-10 AS k FROM test UNION SELECT a-10 AS l FROM test ORDER BY l;
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-- Not compatible with duckdb, work in gretimedb
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SELECT a-10 AS k FROM test UNION SELECT a-10 AS l FROM test ORDER BY 1-k;
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-- Not compatible with duckdb, give an error in greptimedb
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SELECT a-10 AS k FROM test UNION SELECT a-10 AS l FROM test ORDER BY a-10;
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-- Not compatible with duckdb, give an error in greptimedb
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SELECT a-10 AS k FROM test UNION SELECT a-11 AS l FROM test ORDER BY a-11;
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DROP TABLE test;
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-- ORDER BY for partition table
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CREATE TABLE IF NOT EXISTS `t` (
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`tag` STRING NULL,
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`ts` TIMESTAMP(3) NOT NULL,
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`num` BIGINT NULL,
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TIME INDEX (`ts`),
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PRIMARY KEY (`tag`)
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)
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PARTITION ON COLUMNS (`tag`) (
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tag <= 'z',
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tag > 'z'
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);
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INSERT INTO t (tag, ts, num) VALUES
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('abc', 0, 1),
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('abc', 3000, 2),
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('abc', 6000, 3),
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('abc', 9000, 4),
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('abc', 12000, 5),
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('zzz', 3000, 6),
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('zzz', 6000, 7),
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('zzz', 9000, 8),
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('zzz', 0, 9),
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('zzz', 3000, 10);
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select * from t where num > 3 order by ts desc limit 2;
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select tag from t where num > 6 order by ts desc limit 2;
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select tag from t where num > 6 order by ts;
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
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-- SQLNESS REPLACE (RoundRobinBatch.*) REDACTED
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explain analyze select tag from t where num > 6 order by ts desc limit 2;
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drop table t;
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