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Fixed two bugs related to column level constraints

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- CREATE TABLE ... SELECT drops constraints for columns that
  are both in the create and select part.
  - Fixed by copying the constraint in
    Column_definiton::redefine_stage1_common()
- If one has both a default expression and check constraint for a
  column, one can get the error "Expression for field `a` is refering
  to uninitialized field `a`.
  - Fixed by ignoring default expressions for current column when checking
    for CHECK constraint
This commit is contained in:
Monty
2019-02-13 18:21:19 +02:00
parent 44898d28f0
commit 438811b4b2
4 changed files with 55 additions and 8 deletions
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17
mysql-test/main/constraints.result
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@ -111,3 +111,20 @@ long_enough_name CREATE TABLE `long_enough_name` (
CONSTRAINT `constr` CHECK (`f6` >= 0)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE long_enough_name;
create table t1 (a int check (a>10)) select 100 as 'a';
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL CHECK (`a` > 10)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (a text default(length(now())) check (length(a) > 1));
insert into t1 values ();
insert into t1 values ("ccc");
insert into t1 values ("");
ERROR 23000: CONSTRAINT `t1.a` failed for `test`.`t1`
select * from t1;
a
19
ccc
drop table t1;