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MDEV-13508 ALTER TABLE that renames columns and CHECK constraints

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Fixed by adding Item::rename_fields_processor

Signed-off-by: Monty <monty@mariadb.org>
This commit is contained in:
Monty
2018-02-10 14:24:15 +02:00
parent 7beaa5e34e
commit 12d5307e95
9 changed files with 133 additions and 10 deletions
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33
mysql-test/r/alter_table.result
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@ -2276,5 +2276,38 @@ t1 CREATE TABLE `t1` (
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
#
# MDEV-13508 Check that rename of columns changes defaults, virtual
# columns and constraints
#
create table t1 (a int, b int, check(a>b));
alter table t1 change column a b int, change column b a int;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`b` int(11) DEFAULT NULL,
`a` int(11) DEFAULT NULL,
CONSTRAINT `CONSTRAINT_1` CHECK (`b` > `a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (a int primary key, b int, c int default (a+b) check (a+b>0),
d int as (a+b),
key (b),
constraint test check (a+b > 1));
alter table t1 change b new_b int not null, add column b char(1), add constraint new check (length(b) > 0);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`new_b` int(11) NOT NULL,
`c` int(11) DEFAULT (`a` + `new_b`) CHECK (`a` + `new_b` > 0),
`d` int(11) GENERATED ALWAYS AS (`a` + `new_b`) VIRTUAL,
`b` char(1) DEFAULT NULL,
PRIMARY KEY (`a`),
KEY `b` (`new_b`),
CONSTRAINT `test` CHECK (`a` + `new_b` > 1),
CONSTRAINT `new` CHECK (length(`b`) > 0)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
#
# End of 10.2 tests
#