MariaDB [test]> CREATE OR REPLACE VIEW v1 AS SELECT (2, 3) NOT IN ( SELECT i, j FROM t1 );
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Query OK, 0 rows affected (0.10 sec)
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MariaDB [test]> SELECT * FROM v1;
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ERROR 1241 (21000): Operand should contain 1 column(s)
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MariaDB [test]> SHOW CREATE VIEW v1;
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ERROR 1241 (21000): Operand should contain 1 column(s)
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The problem was introduced with this commit in 10.2:
commit 180065ebb0db78ea5c955b54c9f7997dbcba3121
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Author: Sergei Golubchik <serg@mariadb.org>
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Date: Sun Nov 27 19:50:10 2016 +0100
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Item::print(): remove redundant parentheses
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by introducing new Item::precedence() method and using it
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to decide whether parentheses are required
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The view is created with this definition in the frm file:
query=select !(2,3) in (select `test`.`t1`.`i`,`test`.`t1`.`j` from `test`.`t1`) AS `(2, 3) NOT IN ( SELECT i, j FROM t1 )`
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Before the change, it was
query=select (not((2,3) in (select `test`.`t1`.`i`,`test`.`t1`.`j` from `test`.`t1`))) AS `(2, 3) NOT IN ( SELECT i, j FROM t1 )`
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Test case
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CREATE TABLE t1 (i INT, j INT);
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INSERT INTO t1 VALUES (1,1),(2,2);
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CREATE OR REPLACE VIEW v1 AS SELECT (2, 3) NOT IN ( SELECT i, j FROM t1 );
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SELECT * FROM v1;
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DROP VIEW v1;
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DROP TABLE t1;
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Bug
Blocker