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52 lines
1.8 KiB
SQL
52 lines
1.8 KiB
SQL
SET allow_experimental_analyzer = 1;
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DROP TABLE IF EXISTS test_table;
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CREATE TABLE test_table
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(
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id UInt64,
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value String
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) ENGINE=TinyLog;
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INSERT INTO test_table VALUES (0, 'Value');
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SELECT 'Scalar subqueries';
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SELECT (SELECT 1);
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WITH 1 AS a SELECT (SELECT a);
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SELECT (SELECT id FROM test_table);
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SELECT (SELECT value FROM test_table);
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SELECT (SELECT id, value FROM test_table);
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SELECT 'Subqueries FROM section';
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SELECT a FROM (SELECT 1 AS a) AS b;
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SELECT b.a FROM (SELECT 1 AS a) AS b;
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SELECT a FROM (SELECT 1 AS a) AS b;
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SELECT b.a FROM (SELECT 1 AS a) AS b;
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WITH 1 AS global_a SELECT a FROM (SELECT global_a AS a) AS b;
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WITH 1 AS global_a SELECT b.a FROM (SELECT global_a AS a) AS b;
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SELECT * FROM (SELECT * FROM (SELECT * FROM test_table));
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SELECT * FROM (SELECT id, value FROM (SELECT * FROM test_table));
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WITH 1 AS a SELECT (SELECT * FROM (SELECT * FROM (SELECT a + 1)));
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SELECT 'Subqueries CTE';
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WITH subquery AS (SELECT 1 AS a) SELECT * FROM subquery;
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WITH subquery AS (SELECT 1 AS a) SELECT a FROM subquery;
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WITH subquery AS (SELECT 1 AS a) SELECT subquery.a FROM subquery;
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WITH subquery AS (SELECT 1 AS a) SELECT subquery.* FROM subquery;
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WITH subquery AS (SELECT 1 AS a) SELECT subquery.* APPLY toString FROM subquery;
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WITH subquery AS (SELECT 1 AS a) SELECT subquery_alias.a FROM subquery AS subquery_alias;
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WITH subquery AS (SELECT 1 AS a) SELECT subquery_alias.* FROM subquery AS subquery_alias;
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WITH subquery AS (SELECT 1 AS a) SELECT subquery_alias.* APPLY toString FROM subquery AS subquery_alias;
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WITH subquery_1 AS (SELECT 1 AS a), subquery_2 AS (SELECT 1 + subquery_1.a FROM subquery_1) SELECT * FROM subquery_2;
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WITH subquery_1 AS (SELECT 1 AS a), subquery_2 AS (SELECT (1 + subquery_1.a) AS a FROM subquery_1) SELECT subquery_2.a FROM subquery_2;
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DROP TABLE test_table;
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