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	Added check for duplicate column in key
  Added tests and fixed tests which exploit bug
mysql-test/r/delete.result:
  Fix test as it exploited Bug#6252
mysql-test/r/innodb.result:
  Test for Bug#6126
mysql-test/r/key.result:
  Test for Bug#6126/6252
mysql-test/r/type_blob.result:
  Fix test as it exploited Bug#6252
mysql-test/t/delete.test:
  Fix test as it exploited Bug#6252
mysql-test/t/innodb.test:
  Test for Bug#6126
mysql-test/t/key.test:
  Test for Bug#6126/6252
mysql-test/t/type_blob.test:
  Fix test as it exploited Bug#6252
sql/sql_table.cc:
  Bug#6252 - Duplicate columns in keys should fail
    Added check for duplicate column.
		
	
		
			
				
	
	
		
			166 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
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			166 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| drop table if exists t1,t11,t12,t2;
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| CREATE TABLE t1 (a tinyint(3), b tinyint(5));
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| INSERT INTO t1 VALUES (1,1);
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| INSERT LOW_PRIORITY INTO t1 VALUES (1,2);
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| INSERT INTO t1 VALUES (1,3);
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| DELETE from t1 where a=1 limit 1;
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| DELETE LOW_PRIORITY from t1 where a=1;
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| INSERT INTO t1 VALUES (1,1);
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| DELETE from t1;
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| LOCK TABLE t1 write;
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| INSERT INTO t1 VALUES (1,2);
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| DELETE from t1;
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| UNLOCK TABLES;
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| INSERT INTO t1 VALUES (1,2);
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| SET AUTOCOMMIT=0;
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| DELETE from t1;
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| SET AUTOCOMMIT=1;
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| drop table t1;
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| create table t1 (
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| a bigint not null,
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| b bigint not null default 0,
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| c bigint not null default 0,
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| d bigint not null default 0,
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| e bigint not null default 0,
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| f bigint not null default 0,
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| g bigint not null default 0,
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| h bigint not null default 0,
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| i bigint not null default 0,
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| j bigint not null default 0,
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| primary key (a,b,c,d,e,f,g,h,i,j));
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| insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
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| delete from t1 where a=26;
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| drop table t1;
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| create table t1 (
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| a bigint not null,
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| b bigint not null default 0,
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| c bigint not null default 0,
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| d bigint not null default 0,
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| e bigint not null default 0,
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| f bigint not null default 0,
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| g bigint not null default 0,
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| h bigint not null default 0,
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| i bigint not null default 0,
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| j bigint not null default 0,
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| primary key (a,b,c,d,e,f,g,h,i,j));
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| insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
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| delete from t1 where a=27;
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| drop table t1;
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| CREATE TABLE `t1` (
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| `i` int(10) NOT NULL default '0',
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| `i2` int(10) NOT NULL default '0',
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| PRIMARY KEY  (`i`)
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| );
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| DELETE FROM t1 USING t1 WHERE post='1';
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| ERROR 42S22: Unknown column 'post' in 'where clause'
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| drop table t1;
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| CREATE TABLE t1 (
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| bool     char(0) default NULL,
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| not_null varchar(20) binary NOT NULL default '',
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| misc     integer not null,
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| PRIMARY KEY  (not_null)
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| ) ENGINE=MyISAM;
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| INSERT INTO t1 VALUES (NULL,'a',4), (NULL,'b',5), (NULL,'c',6), (NULL,'d',7);
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| select * from t1 where misc > 5 and bool is null;
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| bool	not_null	misc
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| NULL	c	6
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| NULL	d	7
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| delete   from t1 where misc > 5 and bool is null;
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| select * from t1 where misc > 5 and bool is null;
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| bool	not_null	misc
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| select count(*) from t1;
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| count(*)
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| 2
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| delete from t1 where 1 > 2;
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| select count(*) from t1;
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| count(*)
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| 2
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| delete from t1 where 3 > 2;
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| select count(*) from t1;
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| count(*)
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| 0
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| drop table t1;
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| create table t1 (a int not null auto_increment primary key, b char(32));
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| insert into t1 (b) values ('apple'), ('apple');
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| select * from t1;
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| a	b
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| 1	apple
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| 2	apple
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| delete t1 from t1, t1 as t2 where t1.b = t2.b and t1.a > t2.a;
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| select * from t1;
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| a	b
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| 1	apple
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| drop table t1;
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| create table t11 (a int NOT NULL, b int, primary key (a));
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| create table t12 (a int NOT NULL, b int, primary key (a));
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| create table t2 (a int NOT NULL, b int, primary key (a));
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| insert into t11 values (0, 10),(1, 11),(2, 12);
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| insert into t12 values (33, 10),(0, 11),(2, 12);
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| insert into t2 values (1, 21),(2, 12),(3, 23);
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| select * from t11;
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| a	b
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| 0	10
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| 1	11
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| 2	12
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| select * from t12;
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| a	b
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| 33	10
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| 0	11
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| 2	12
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| select * from t2;
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| a	b
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| 1	21
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| 2	12
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| 3	23
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| delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
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| ERROR 21000: Subquery returns more than 1 row
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| select * from t11;
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| a	b
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| 0	10
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| 1	11
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| 2	12
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| select * from t12;
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| a	b
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| 33	10
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| 0	11
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| 2	12
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| delete ignore t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
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| Warnings:
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| Error	1242	Subquery returns more than 1 row
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| Error	1242	Subquery returns more than 1 row
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| select * from t11;
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| a	b
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| 0	10
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| 1	11
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| select * from t12;
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| a	b
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| 33	10
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| 0	11
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| insert into t11 values (2, 12);
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| delete from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
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| ERROR 21000: Subquery returns more than 1 row
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| select * from t11;
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| a	b
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| 0	10
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| 1	11
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| 2	12
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| delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
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| Warnings:
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| Error	1242	Subquery returns more than 1 row
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| Error	1242	Subquery returns more than 1 row
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| select * from t11;
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| a	b
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| 0	10
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| 1	11
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| drop table t11, t12, t2;
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| create table t1 (a int, b int, unique key (a), key (b));
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| insert into t1 values (3, 3), (7, 7);
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| delete t1 from t1 where a = 3;
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| check table t1;
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| Table	Op	Msg_type	Msg_text
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| test.t1	check	status	OK
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| select * from t1;
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| a	b
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| 7	7
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| drop table t1;
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