greptimedb/tests/cases/distributed/explain/order_by.sql

CREATE TABLE integers(i BIGINT, ts TIMESTAMP TIME INDEX);

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EXPLAIN SELECT DISTINCT i%2 FROM integers ORDER BY 1;

DROP TABLE integers;


CREATE TABLE test (a INTEGER, b INTEGER, t TIMESTAMP TIME INDEX);

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EXPLAIN SELECT a, b FROM test ORDER BY a, b;

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EXPLAIN SELECT DISTINCT a, b FROM test ORDER BY a, b;

DROP TABLE test;

CREATE TABLE test_pk(pk INTEGER PRIMARY KEY, i INTEGER, t TIMESTAMP TIME INDEX) WITH('compaction.type'='twcs', 'compaction.twcs.max_inactive_window_files'='4');

INSERT INTO test_pk VALUES (1, 1, 1), (2, NULL, 2), (3, 1, 3), (4, 2, 4), (5, 2, 5), (6, NULL, 6);

-- Test aliasing.
SELECT i, t AS alias_ts FROM test_pk ORDER BY t DESC LIMIT 5;

-- Test aliasing.
SELECT i, t AS alias_ts FROM test_pk ORDER BY alias_ts DESC LIMIT 5;

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EXPLAIN ANALYZE SELECT i, t AS alias_ts FROM test_pk ORDER BY t DESC LIMIT 5;

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EXPLAIN ANALYZE SELECT i, t AS alias_ts FROM test_pk ORDER BY alias_ts DESC LIMIT 5;

DROP TABLE test_pk;