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115 lines
4.5 KiB
SQL
115 lines
4.5 KiB
SQL
/**
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* Based on https://github.com/postgres/postgres/blob/master/src/test/regress/sql/with.sql, license:
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*
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* PostgreSQL Database Management System
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* (formerly known as Postgres, then as Postgres95)
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*
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* Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
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*
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* Portions Copyright (c) 1994, The Regents of the University of California
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose, without fee, and without a written agreement
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* is hereby granted, provided that the above copyright notice and this
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* paragraph and the following two paragraphs appear in all copies.
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*
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* IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
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* LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
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* DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
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*PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*/
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--
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-- Tests for common table expressions (WITH query, ... SELECT ...)
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--
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-- { echoOn }
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SET allow_experimental_analyzer = 1;
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--
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-- error cases
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--
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-- INTERSECT
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WITH RECURSIVE x AS (SELECT 1 AS n INTERSECT SELECT n+1 FROM x)
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SELECT * FROM x; -- {serverError UNSUPPORTED_METHOD}
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WITH RECURSIVE x AS (SELECT 1 AS n INTERSECT ALL SELECT n+1 FROM x)
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SELECT * FROM x; -- {serverError UNSUPPORTED_METHOD}
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-- EXCEPT
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WITH RECURSIVE x AS (SELECT 1 AS n EXCEPT SELECT n+1 FROM x)
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SELECT * FROM x; -- {serverError UNSUPPORTED_METHOD}
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WITH RECURSIVE x AS (SELECT 1 AS n EXCEPT ALL SELECT n+1 FROM x)
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SELECT * FROM x; -- {serverError UNSUPPORTED_METHOD}
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-- no non-recursive term
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WITH RECURSIVE x AS (SELECT n FROM x)
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SELECT * FROM x; -- {serverError UNKNOWN_TABLE}
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-- recursive term in the left hand side (strictly speaking, should allow this)
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WITH RECURSIVE x AS (SELECT n FROM x UNION ALL SELECT 1 AS n)
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SELECT * FROM x; -- {serverError UNKNOWN_TABLE}
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DROP TABLE IF EXISTS y;
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CREATE TABLE y (a UInt64) ENGINE=TinyLog;
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INSERT INTO y SELECT * FROM numbers(1, 10);
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-- LEFT JOIN
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WITH RECURSIVE x AS (SELECT a AS n FROM y WHERE a = 1
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UNION ALL
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SELECT x.n+1 FROM y LEFT JOIN x ON x.n = y.a WHERE n < 10)
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SELECT * FROM x FORMAT NULL SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }
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-- RIGHT JOIN
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WITH RECURSIVE x AS (SELECT a AS n FROM y WHERE a = 1
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UNION ALL
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SELECT x.n+1 FROM x RIGHT JOIN y ON x.n = y.a WHERE n < 10)
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SELECT * FROM x FORMAT NULL SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }
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-- FULL JOIN
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WITH RECURSIVE x AS (SELECT a AS n FROM y WHERE a = 1
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UNION ALL
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SELECT x.n+1 FROM x FULL JOIN y ON x.n = y.a WHERE n < 10)
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SELECT * FROM x FORMAT NULL SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }
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-- subquery
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WITH RECURSIVE x AS (SELECT 1 AS n UNION ALL SELECT n+1 FROM x
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WHERE n IN (SELECT * FROM x))
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SELECT * FROM x FORMAT NULL SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }
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-- aggregate functions
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WITH RECURSIVE x AS (SELECT 1 AS n UNION ALL SELECT count(*) FROM x)
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SELECT * FROM x FORMAT NULL SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }
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WITH RECURSIVE x AS (SELECT 1 AS n UNION ALL SELECT sum(n) FROM x)
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SELECT * FROM x FORMAT NULL SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }
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-- ORDER BY
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WITH RECURSIVE x AS (SELECT 1 AS n UNION ALL SELECT n+1 FROM x ORDER BY 1)
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SELECT * FROM x FORMAT NULL SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }
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-- target list has a recursive query name
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WITH RECURSIVE x AS (SELECT 1 AS id
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UNION ALL
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SELECT (SELECT * FROM x) FROM x WHERE id < 5
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) SELECT * FROM x; -- { serverError UNKNOWN_TABLE }
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-- mutual recursive query (not implemented)
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WITH RECURSIVE
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x AS (SELECT 1 AS id UNION ALL SELECT id+1 FROM y WHERE id < 5),
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y AS (SELECT 1 AS id UNION ALL SELECT id+1 FROM x WHERE id < 5)
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SELECT * FROM x FORMAT NULL SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }
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-- { echoOff }
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