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60 lines
3.1 KiB
SQL
60 lines
3.1 KiB
SQL
SET send_logs_level = 'none';
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DROP TABLE IF EXISTS test.test;
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CREATE TABLE test.test(date Date, id Int8, name String, value Int64) ENGINE = MergeTree(date, (id, date), 8192);
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INSERT INTO test.test VALUES('2000-01-01', 1, 'test string 1', 1);
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INSERT INTO test.test VALUES('2000-01-01', 2, 'test string 2', 2);
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SET enable_optimize_predicate_expression = 1;
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SELECT '-------Query that previously worked but now doesn\'t work.-------';
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SELECT * FROM (SELECT 1) WHERE `1` = 1; -- { serverError 47 }
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SELECT '-------Not need optimize predicate, but it works.-------';
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SELECT 1;
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SELECT 1 AS id WHERE id = 1;
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SELECT arrayJoin([1,2,3]) AS id WHERE id = 1;
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SELECT '-------Need push down-------';
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SELECT * FROM (SELECT arrayJoin([1, 2, 3]) AS id) WHERE id = 1;
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SELECT id FROM (SELECT arrayJoin([1, 2, 3]) AS id) WHERE id = 1;
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SELECT date, id, name, value FROM (SELECT date, name, value,min(id) AS id FROM test.test GROUP BY date, name, value) WHERE id = 1;
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SET force_primary_key = 1;
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-- Optimize predicate expression with asterisk
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SELECT * FROM (SELECT * FROM test.test) WHERE id = 1;
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-- Optimize predicate expression with asterisk and nested subquery
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SELECT * FROM (SELECT * FROM (SELECT * FROM test.test)) WHERE id = 1;
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-- Optimize predicate expression with qualified asterisk
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SELECT * FROM (SELECT b.* FROM (SELECT * FROM test.test) AS b) WHERE id = 1;
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-- Optimize predicate expression without asterisk
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SELECT * FROM (SELECT date, id, name, value FROM test.test) WHERE id = 1;
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-- Optimize predicate expression without asterisk and contains nested subquery
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SELECT * FROM (SELECT date, id, name, value FROM (SELECT date, id, name, value FROM test.test)) WHERE id = 1;
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-- Optimize predicate expression with qualified
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SELECT * FROM (SELECT * FROM test.test) AS b WHERE b.id = 1;
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-- Optimize predicate expression with qualified and nested subquery
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SELECT * FROM (SELECT * FROM (SELECT * FROM test.test) AS a) AS b WHERE b.id = 1;
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-- Optimize predicate expression with aggregate function
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SELECT * FROM (SELECT id, date, min(value) AS value FROM test.test GROUP BY id, date) WHERE id = 1;
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-- Optimize predicate expression with union all query
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SELECT * FROM (SELECT * FROM test.test UNION ALL SELECT * FROM test.test) WHERE id = 1;
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-- Optimize predicate expression with join query
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SELECT * FROM (SELECT * FROM test.test) ANY LEFT JOIN (SELECT * FROM test.test) USING id WHERE id = 1;
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-- Optimize predicate expression with join and nested subquery
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SELECT * FROM (SELECT * FROM (SELECT * FROM test.test) ANY LEFT JOIN (SELECT * FROM test.test) USING id) WHERE id = 1;
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-- Optimize predicate expression with join query and qualified
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SELECT * FROM (SELECT 1 AS id, toDate('2000-01-01') AS date FROM system.numbers LIMIT 1) ANY LEFT JOIN (SELECT * FROM test.test) AS b USING date WHERE b.id = 1;
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SELECT '-------Push to having expression, need check.-------';
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SELECT id FROM (SELECT min(id) AS id FROM test.test) WHERE id = 1; -- { serverError 277 }
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SELECT '-------Compatibility test-------';
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SELECT * FROM (SELECT 1 AS id, toDate('2000-01-01') AS date FROM system.numbers LIMIT 1) ANY LEFT JOIN (SELECT * FROM test.test) AS b USING date WHERE b.date = toDate('2000-01-01'); -- {serverError 47}
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DROP TABLE IF EXISTS test.test;
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