Bug#33699: The UPDATE statement allows NULL as new value on a NOT NULL

columns (default datatype value is assigned).

The mysql_update function has been modified to generate
an error when trying to set a NOT NULL field to NULL rather than a warning
in the set_field_to_null_with_conversions function.
parent 5b9e61b2
......@@ -419,7 +419,7 @@ connection master;
update t31 set f5=555555555555555 where f3=6;
update t31 set f2=2 where f3=2;
update t31 set f1=NULL where f3=1;
update t31 set f3=NULL, f27=NULL, f35='f35 new value' where f3=3;
update t31 set f3=0, f27=NULL, f35='f35 new value' where f3=3;
--echo
--echo ** Delete from Master **
......
......@@ -108,6 +108,7 @@ execute stmt1 using @arg00, @arg01;
select a,b from t1 where a=@arg00;
set @arg00=NULL;
set @arg01=2;
--error 1048
execute stmt1 using @arg00, @arg01;
select a,b from t1 order by a;
set @arg00=0;
......
......@@ -231,8 +231,7 @@ a b
204 7
delete from t1 where a=0;
update t1 set a=NULL where b=6;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
update t1 set a=300 where b=7;
SET SQL_MODE='';
insert into t1(a,b)values(NULL,8);
......@@ -247,7 +246,7 @@ a b
1 1
200 2
201 4
0 6
203 6
300 7
301 8
400 9
......@@ -263,6 +262,7 @@ a b
1 1
200 2
201 4
203 6
300 7
301 8
400 9
......@@ -273,20 +273,20 @@ a b
405 14
delete from t1 where a=0;
update t1 set a=NULL where b=13;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
update t1 set a=500 where b=14;
select * from t1 order by b;
a b
1 1
200 2
201 4
203 6
300 7
301 8
400 9
401 10
402 11
0 13
404 13
500 14
drop table t1;
create table t1 (a bigint);
......
......@@ -93,11 +93,9 @@ INSERT INTO t1 SET a = "", d= "2003-01-14 03:54:55";
Warnings:
Warning 1265 Data truncated for column 'd' at row 1
UPDATE t1 SET d=1/NULL;
Warnings:
Warning 1265 Data truncated for column 'd' at row 1
ERROR 23000: Column 'd' cannot be null
UPDATE t1 SET d=NULL;
Warnings:
Warning 1048 Column 'd' cannot be null
ERROR 23000: Column 'd' cannot be null
INSERT INTO t1 (a) values (null);
ERROR 23000: Column 'a' cannot be null
INSERT INTO t1 (a) values (1/null);
......@@ -132,7 +130,7 @@ Warning 1048 Column 'd' cannot be null
Warning 1048 Column 'd' cannot be null
select * from t1;
a b c d
0 0000-00-00 00:00:00 0
0 0000-00-00 00:00:00 2003
0 0000-00-00 00:00:00 0
0 0000-00-00 00:00:00 0
0 0000-00-00 00:00:00 0
......
......@@ -1303,12 +1303,11 @@ a b
set @arg00=NULL;
set @arg01=2;
execute stmt1 using @arg00, @arg01;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
select a,b from t1 order by a;
a b
0 two
1 one
2 two
3 three
4 four
set @arg00=0;
......
......@@ -1286,12 +1286,11 @@ a b
set @arg00=NULL;
set @arg01=2;
execute stmt1 using @arg00, @arg01;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
select a,b from t1 order by a;
a b
0 two
1 one
2 two
3 three
4 four
set @arg00=0;
......
......@@ -1287,12 +1287,11 @@ a b
set @arg00=NULL;
set @arg01=2;
execute stmt1 using @arg00, @arg01;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
select a,b from t1 order by a;
a b
0 two
1 one
2 two
3 three
4 four
set @arg00=0;
......
......@@ -1329,12 +1329,11 @@ a b
set @arg00=NULL;
set @arg01=2;
execute stmt1 using @arg00, @arg01;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
select a,b from t1 order by a;
a b
0 two
1 one
2 two
3 three
4 four
set @arg00=0;
......@@ -4351,12 +4350,11 @@ a b
set @arg00=NULL;
set @arg01=2;
execute stmt1 using @arg00, @arg01;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
select a,b from t1 order by a;
a b
0 two
1 one
2 two
3 three
4 four
set @arg00=0;
......
......@@ -98,8 +98,7 @@ Warning 1265 Data truncated for column 'c' at row 1
Warning 1265 Data truncated for column 'c' at row 2
alter table t1 add d char(2);
update t1 set a=NULL where a=10;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
update t1 set c='mysql ab' where c='test';
Warnings:
Warning 1265 Data truncated for column 'c' at row 4
......
......@@ -1286,12 +1286,11 @@ a b
set @arg00=NULL;
set @arg01=2;
execute stmt1 using @arg00, @arg01;
Warnings:
Warning 1048 Column 'a' cannot be null
ERROR 23000: Column 'a' cannot be null
select a,b from t1 order by a;
a b
0 two
1 one
2 two
3 three
4 four
set @arg00=0;
......
......@@ -454,9 +454,7 @@ f1 f2 f3 f4
update t31 set f5=555555555555555 where f3=6;
update t31 set f2=2 where f3=2;
update t31 set f1=NULL where f3=1;
update t31 set f3=NULL, f27=NULL, f35='f35 new value' where f3=3;
Warnings:
Warning 1048 Column 'f3' cannot be null
update t31 set f3=0, f27=NULL, f35='f35 new value' where f3=3;
** Delete from Master **
......@@ -1594,9 +1592,7 @@ f1 f2 f3 f4
update t31 set f5=555555555555555 where f3=6;
update t31 set f2=2 where f3=2;
update t31 set f1=NULL where f3=1;
update t31 set f3=NULL, f27=NULL, f35='f35 new value' where f3=3;
Warnings:
Warning 1048 Column 'f3' cannot be null
update t31 set f3=0, f27=NULL, f35='f35 new value' where f3=3;
** Delete from Master **
......@@ -2734,9 +2730,7 @@ f1 f2 f3 f4
update t31 set f5=555555555555555 where f3=6;
update t31 set f2=2 where f3=2;
update t31 set f1=NULL where f3=1;
update t31 set f3=NULL, f27=NULL, f35='f35 new value' where f3=3;
Warnings:
Warning 1048 Column 'f3' cannot be null
update t31 set f3=0, f27=NULL, f35='f35 new value' where f3=3;
** Delete from Master **
......
......@@ -454,9 +454,7 @@ f1 f2 f3 f4
update t31 set f5=555555555555555 where f3=6;
update t31 set f2=2 where f3=2;
update t31 set f1=NULL where f3=1;
update t31 set f3=NULL, f27=NULL, f35='f35 new value' where f3=3;
Warnings:
Warning 1048 Column 'f3' cannot be null
update t31 set f3=0, f27=NULL, f35='f35 new value' where f3=3;
** Delete from Master **
......@@ -1594,9 +1592,7 @@ f1 f2 f3 f4
update t31 set f5=555555555555555 where f3=6;
update t31 set f2=2 where f3=2;
update t31 set f1=NULL where f3=1;
update t31 set f3=NULL, f27=NULL, f35='f35 new value' where f3=3;
Warnings:
Warning 1048 Column 'f3' cannot be null
update t31 set f3=0, f27=NULL, f35='f35 new value' where f3=3;
** Delete from Master **
......@@ -2734,9 +2730,7 @@ f1 f2 f3 f4
update t31 set f5=555555555555555 where f3=6;
update t31 set f2=2 where f3=2;
update t31 set f1=NULL where f3=1;
update t31 set f3=NULL, f27=NULL, f35='f35 new value' where f3=3;
Warnings:
Warning 1048 Column 'f3' cannot be null
update t31 set f3=0, f27=NULL, f35='f35 new value' where f3=3;
** Delete from Master **
......
......@@ -49,7 +49,7 @@ kill @id;
drop table t2,t3;
insert into t4 values (3),(4);
connection master;
--error 0,1053,2013
--error 0,1053,2013,1048
reap;
connection master1;
save_master_pos;
......
......@@ -149,6 +149,7 @@ delete from t1 where a=0;
update t1 set a=0 where b=5;
select * from t1 order by b;
delete from t1 where a=0;
--error 1048
update t1 set a=NULL where b=6;
update t1 set a=300 where b=7;
SET SQL_MODE='';
......@@ -164,6 +165,7 @@ delete from t1 where a=0;
update t1 set a=0 where b=12;
select * from t1 order by b;
delete from t1 where a=0;
--error 1048
update t1 set a=NULL where b=13;
update t1 set a=500 where b=14;
select * from t1 order by b;
......
......@@ -61,7 +61,9 @@ drop table t1;
#
CREATE TABLE t1 (a varchar(16) NOT NULL default '', b smallint(6) NOT NULL default 0, c datetime NOT NULL default '0000-00-00 00:00:00', d smallint(6) NOT NULL default 0);
INSERT INTO t1 SET a = "", d= "2003-01-14 03:54:55";
--error 1048
UPDATE t1 SET d=1/NULL;
--error 1048
UPDATE t1 SET d=NULL;
--error 1048
INSERT INTO t1 (a) values (null);
......
......@@ -65,6 +65,7 @@ create table t1(a tinyint NOT NULL, b tinyint unsigned, c char(5));
insert into t1 values(NULL,100,'mysql'),(10,-1,'mysql ab'),(500,256,'open source'),(20,NULL,'test');
alter table t1 modify c char(4);
alter table t1 add d char(2);
--error 1048
update t1 set a=NULL where a=10;
update t1 set c='mysql ab' where c='test';
update t1 set d=c;
......
......@@ -526,7 +526,9 @@ int mysql_update(THD *thd,
init_read_record(&info,thd,table,select,0,1);
updated= found= 0;
thd->count_cuted_fields= CHECK_FIELD_WARN; /* calc cuted fields */
/* Generate an error when trying to set a NOT NULL field to NULL. */
thd->count_cuted_fields= ignore ? CHECK_FIELD_WARN
: CHECK_FIELD_ERROR_FOR_NULL;
thd->cuted_fields=0L;
thd->proc_info="Updating";
......
......@@ -15674,7 +15674,7 @@ static void test_mysql_insert_id()
myquery(rc);
res= mysql_insert_id(mysql);
DIE_UNLESS(res == 0);
rc= mysql_query(mysql, "update t2 set f1=NULL where f1=14");
rc= mysql_query(mysql, "update t2 set f1=0 where f1=14");
myquery(rc);
res= mysql_insert_id(mysql);
DIE_UNLESS(res == 0);
......
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