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111 lines
6.3 KiB
111 lines
6.3 KiB
#
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# Bug#40277 SHOW CREATE VIEW returns invalid SQL
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# Bug#41999 SHOW CREATE VIEW returns invalid SQL if subquery is used in SELECT list
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#
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# 65 characters exceed the maximum length of a column identifier. The system cannot derive the name from statement.
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# Constant with length = 65 . Expect to get the identifier 'Name_exp_1'.
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CREATE VIEW v1 AS SELECT '<--- 65 char including the arrows --->';
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SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'test' AND TABLE_NAME = 'v1' ORDER BY COLUMN_NAME;
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COLUMN_NAME
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Name_exp_1
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DROP VIEW v1;
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CREATE VIEW v1 AS select '<--- 65 char including the arrows --->' AS `Name_exp_1`;
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DROP VIEW v1;
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CREATE VIEW v1 AS select '<--- 65 char including the arrows --->' AS `Name_exp_1`;
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DROP VIEW v1;
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# Subquery with length = 65 . Expect to get the identifier 'Name_exp_1'.
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# Attention: Identifier for the column within the subquery will be not generated.
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CREATE VIEW v1 AS SELECT (SELECT '<--- 54 char including the arrows (+ 11 outside) -->');
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SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'test' AND TABLE_NAME = 'v1' ORDER BY COLUMN_NAME;
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COLUMN_NAME
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Name_exp_1
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DROP VIEW v1;
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CREATE VIEW v1 AS select (select '<--- 54 char including the arrows (+ 11 outside) -->') AS `Name_exp_1`;
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DROP VIEW v1;
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CREATE VIEW v1 AS select (select '<--- 54 char including the arrows (+ 11 outside) -->') AS `Name_exp_1`;
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DROP VIEW v1;
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# -----------------------------------------------------------------------------------------------------------------
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# 64 characters are the maximum length of a column identifier. The system can derive the name from the statement.
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CREATE VIEW v1 AS SELECT '<--- 64 char including the arrows --->';
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SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'test' AND TABLE_NAME = 'v1' ORDER BY COLUMN_NAME;
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COLUMN_NAME
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<--- 64 char including the arrows --->
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DROP VIEW v1;
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CREATE VIEW v1 AS select '<--- 64 char including the arrows --->' AS `<--- 64 char including the arrows --->`;
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DROP VIEW v1;
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CREATE VIEW v1 AS select '<--- 64 char including the arrows --->' AS `<--- 64 char including the arrows --->`;
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DROP VIEW v1;
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CREATE VIEW v1 AS SELECT (SELECT '<--- 53 char including the arrows (+ 11 outside) --->');
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SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'test' AND TABLE_NAME = 'v1' ORDER BY COLUMN_NAME;
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COLUMN_NAME
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(SELECT '<--- 53 char including the arrows (+ 11 outside) --->')
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DROP VIEW v1;
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CREATE VIEW v1 AS select (select '<--- 53 char including the arrows (+ 11 outside) --->') AS `(SELECT '<--- 53 char including the arrows (+ 11 outside) --->')`;
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DROP VIEW v1;
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CREATE VIEW v1 AS select (select '<--- 53 char including the arrows (+ 11 outside) --->') AS `(SELECT '<--- 53 char including the arrows (+ 11 outside) --->')`;
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DROP VIEW v1;
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# -----------------------------------------------------------------------------------------------------------------
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# Identifiers must not have trailing spaces. The system cannot derive the name from a constant with trailing space.
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# Generated identifiers have at their end the position within the select column list.
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# 'c2 ' -> 'Name_exp_1' , ' c4 ' -> 'Name_exp_2'
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CREATE VIEW v1 AS SELECT 'c1', 'c2 ', ' c3', ' c4 ';
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SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'test' AND TABLE_NAME = 'v1' ORDER BY COLUMN_NAME;
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COLUMN_NAME
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c1
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c3
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Name_exp_2
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Name_exp_4
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DROP VIEW v1;
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CREATE VIEW v1 AS select 'c1' AS `c1`,'c2 ' AS `Name_exp_2`,' c3' AS `c3`,' c4 ' AS `Name_exp_4`;
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DROP VIEW v1;
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CREATE VIEW v1 AS select 'c1' AS `c1`,'c2 ' AS `Name_exp_2`,' c3' AS `c3`,' c4 ' AS `Name_exp_4`;
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DROP VIEW v1;
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#
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# Bug#40277 SHOW CREATE VIEW returns invalid SQL
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#
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DROP VIEW IF EXISTS v1;
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DROP TABLE IF EXISTS t1,t2;
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# Column name exceeds the maximum length.
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CREATE VIEW v1 AS SELECT '0000000000 1111111111 2222222222 3333333333 4444444444 5555555555';
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DROP VIEW v1;
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CREATE VIEW v1 AS select '0000000000 1111111111 2222222222 3333333333 4444444444 5555555555' AS `Name_exp_1`;
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DROP VIEW v1;
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# Column names with leading trailing spaces.
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CREATE VIEW v1 AS SELECT 'c1', 'c2 ', ' c3', ' c4 ';
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DROP VIEW v1;
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CREATE VIEW v1 AS select 'c1' AS `c1`,'c2 ' AS `Name_exp_2`,' c3' AS `c3`,' c4 ' AS `Name_exp_4`;
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DROP VIEW v1;
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# Column name conflicts with a auto-generated one.
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CREATE VIEW v1 AS SELECT 'c1', 'c2 ', ' c3', ' c4 ', 'Name_exp_2';
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DROP VIEW v1;
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CREATE VIEW v1 AS select 'c1' AS `c1`,'c2 ' AS `Name_exp_2`,' c3' AS `c3`,' c4 ' AS `Name_exp_4`,'Name_exp_2' AS `My_exp_Name_exp_2`;
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DROP VIEW v1;
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# Invalid conlumn name in subquery.
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CREATE VIEW v1 AS SELECT (SELECT ' c1 ');
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DROP VIEW v1;
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CREATE VIEW v1 AS select (select ' c1 ') AS `(SELECT ' c1 ')`;
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DROP VIEW v1;
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CREATE TABLE t1(a INT);
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CREATE TABLE t2 LIKE t1;
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# Test alias in subquery
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CREATE VIEW v1 AS SELECT a FROM t1 WHERE EXISTS (SELECT 1 FROM t2 AS b WHERE b.a = 0);
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DROP VIEW v1;
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CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select 1 from `test`.`t2` `b` where (`b`.`a` = 0));
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DROP VIEW v1;
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# Test column alias in subquery
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CREATE VIEW v1 AS SELECT a FROM t1 WHERE EXISTS (SELECT a AS alias FROM t1 GROUP BY alias);
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SHOW CREATE VIEW v1;
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View Create View character_set_client collation_connection
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v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` where exists(select `t1`.`a` AS `alias` from `t1` group by `alias`) utf8mb4 utf8mb4_0900_ai_ci
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DROP VIEW v1;
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CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select `test`.`t1`.`a` AS `alias` from `test`.`t1` group by `alias`);
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DROP VIEW v1;
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# Alias as the expression column name.
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CREATE VIEW v1 AS SELECT a FROM t1 WHERE EXISTS (SELECT ' a ' AS alias FROM t1 GROUP BY alias);
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SHOW CREATE VIEW v1;
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View Create View character_set_client collation_connection
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v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` where exists(select ' a ' AS `alias` from `t1` group by `alias`) utf8mb4 utf8mb4_0900_ai_ci
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DROP VIEW v1;
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CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select ' a ' AS `alias` from `test`.`t1` group by `alias`);
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DROP VIEW v1;
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DROP TABLE t1, t2;
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