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MDEV-20632: Recursive CTE cycle detection using CYCLE clause (nonstandard)

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Added CYCLE ... RESTRICT (nonstandard) clause to recursive CTE.
This commit is contained in:
Oleksandr Byelkin
2020-01-27 21:50:16 +01:00
parent a5584b13d1
commit 50c0939166
20 changed files with 619 additions and 147 deletions
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mysql-test/main/table_value_constr.result
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@ -2593,7 +2593,7 @@ ERROR 42S22: Unknown column '2' in 'order clause'
create view v1 as with t(a) as (values (2), (1)) select a from t;
show create view v1;
View Create View character_set_client collation_connection
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS with t(a) as (values (2),(1))select `t`.`a` AS `a` from `t` latin1 latin1_swedish_ci
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS with t(`a`) as (values (2),(1))select `t`.`a` AS `a` from `t` latin1 latin1_swedish_ci
select * from v1;
a
2