mariadb/mysql-test/t/errors.test
Norvald H. Ryeng ad031d5110 Bug#13031606 VALUES() IN A SELECT STATEMENT CRASHES SERVER
Problem: Grouping results by VALUES(alias for string literal) causes
the server to crash.

Item_insert_values is not constructed to handle other types of
arguments than field and reference to field. In this case, the
argument is an Item_string, and this causes
Item_insert_values::fix_fields() to crash.

Fix: Issue an error message when the argument to Item_insert_values is
not a field or a reference to a field.

This is slightly in breach with documentation, which states that
VALUES should return NULL, but the error message is only issued in
cases where the server otherwise would crash, so there is no change in
behavior for queries that already work. Future versions will restrict
syntax so that using VALUES in this way is illegal.


mysql-test/r/errors.result:
  Add test case for bug #13031606.
mysql-test/t/errors.test:
  Add test case for bug #13031606.
sql/item.cc:
  Issue error message if argument is not field or reference to field.
2012-03-12 08:56:56 +01:00

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#
# Test some error conditions
#
--disable_warnings
drop table if exists t1;
--enable_warnings
--error 1146
insert into t1 values(1);
--error 1146
delete from t1;
--error 1146
update t1 set a=1;
create table t1 (a int);
--error 1054
select count(test.t1.b) from t1;
--error 1054
select count(not_existing_database.t1) from t1;
--error 1054
select count(not_existing_database.t1.a) from t1;
--error 1044,1146
select count(not_existing_database.t1.a) from not_existing_database.t1;
--error 1054
select 1 from t1 order by 2;
--error 1054
select 1 from t1 group by 2;
--error 1054
select 1 from t1 order by t1.b;
--error 1054
select count(*),b from t1;
drop table t1;
# End of 4.1 tests
#
# Bug #6080: Error message for a field with a display width that is too long
#
--error 1439
create table t1 (a int(256));
set sql_mode='traditional';
--error 1074
create table t1 (a varchar(66000));
set sql_mode=default;
#
# Bug #27513: mysql 5.0.x + NULL pointer DoS
#
CREATE TABLE t1 (a INT);
SELECT a FROM t1 WHERE a IN(1, (SELECT IF(1=0,1,2/0)));
INSERT INTO t1 VALUES(1);
SELECT a FROM t1 WHERE a IN(1, (SELECT IF(1=0,1,2/0)));
INSERT INTO t1 VALUES(2),(3);
SELECT a FROM t1 WHERE a IN(1, (SELECT IF(1=0,1,2/0)));
DROP TABLE t1;
#
# Bug #28677: SELECT on missing column gives extra error
#
CREATE TABLE t1( a INT );
--error ER_BAD_FIELD_ERROR
SELECT b FROM t1;
SHOW ERRORS;
--error ER_BAD_FIELD_ERROR
CREATE TABLE t2 SELECT b FROM t1;
SHOW ERRORS;
--error ER_BAD_FIELD_ERROR
INSERT INTO t1 SELECT b FROM t1;
DROP TABLE t1;
# End of 5.0 tests
#
# Bug #13031606 VALUES() IN A SELECT STATEMENT CRASHES SERVER
#
CREATE TABLE t1 (a INT);
CREATE TABLE t2(a INT PRIMARY KEY, b INT);
--error ER_BAD_FIELD_ERROR
SELECT '' AS b FROM t1 GROUP BY VALUES(b);
--error ER_BAD_FIELD_ERROR
REPLACE t2(b) SELECT '' AS b FROM t1 GROUP BY VALUES(b);
--error ER_BAD_FIELD_ERROR
UPDATE t2 SET a=(SELECT '' AS b FROM t1 GROUP BY VALUES(b));
--error ER_BAD_FIELD_ERROR
INSERT INTO t2 VALUES (1,0) ON DUPLICATE KEY UPDATE
b=(SELECT '' AS b FROM t1 GROUP BY VALUES(b));
INSERT INTO t2(a,b) VALUES (1,0) ON DUPLICATE KEY UPDATE
b=(SELECT VALUES(a)+2 FROM t1);
DROP TABLE t1, t2;