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	columns
Fixed confusing warning.
Quoting INSERT section of the manual:
----
Inserting NULL into a column that has been declared NOT NULL. For
multiple-row INSERT statements or INSERT INTO ... SELECT statements, the
column is set to the implicit default value for the column data type. This
is 0 for numeric types, the empty string ('') for string types, and the
"zero" value for date and time types. INSERT INTO ... SELECT statements are
handled the same way as multiple-row inserts because the server does not
examine the result set from the SELECT to see whether it returns a single
row. (For a single-row INSERT, no warning occurs when NULL is inserted into
a NOT NULL column. Instead, the statement fails with an error.)
----
This is also true for LOAD DATA INFILE. For INSERT user can specify
DEFAULT keyword as a value to set column default. There is no similiar
feature available for LOAD DATA INFILE.
mysql-test/r/auto_increment.result:
  Fixed confusing warning.
mysql-test/r/create.result:
  Fixed confusing warning.
mysql-test/r/insert.result:
  Fixed confusing warning.
mysql-test/r/insert_select.result:
  Fixed confusing warning.
mysql-test/r/key.result:
  Fixed confusing warning.
mysql-test/r/null.result:
  Fixed confusing warning.
mysql-test/r/null_key.result:
  Fixed confusing warning.
mysql-test/r/ps_2myisam.result:
  Fixed confusing warning.
mysql-test/r/ps_3innodb.result:
  Fixed confusing warning.
mysql-test/r/ps_4heap.result:
  Fixed confusing warning.
mysql-test/r/ps_5merge.result:
  Fixed confusing warning.
mysql-test/r/ps_6bdb.result:
  Fixed confusing warning.
mysql-test/r/strict.result:
  Fixed confusing warning.
mysql-test/r/view.result:
  Fixed confusing warning.
mysql-test/r/warnings.result:
  Fixed confusing warning.
sql/share/errmsg.txt:
  Fixed confusing warning.
		
	
		
			
				
	
	
		
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			323 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| drop table if exists t1;
 | |
| select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnull(null,1),ifnull(null,"TRUE"),ifnull("TRUE","ERROR"),1/0 is null,1 is not null;
 | |
| NULL	NULL	isnull(null)	isnull(1/0)	isnull(1/0 = null)	ifnull(null,1)	ifnull(null,"TRUE")	ifnull("TRUE","ERROR")	1/0 is null	1 is not null
 | |
| NULL	NULL	1	1	1	1	TRUE	TRUE	1	1
 | |
| explain extended select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnull(null,1),ifnull(null,"TRUE"),ifnull("TRUE","ERROR"),1/0 is null,1 is not null;
 | |
| id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
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| 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 | |
| Warnings:
 | |
| Note	1003	select NULL AS `NULL`,NULL AS `NULL`,isnull(NULL) AS `isnull(null)`,isnull((1 / 0)) AS `isnull(1/0)`,isnull(((1 / 0) = NULL)) AS `isnull(1/0 = null)`,ifnull(NULL,1) AS `ifnull(null,1)`,ifnull(NULL,_latin1'TRUE') AS `ifnull(null,"TRUE")`,ifnull(_latin1'TRUE',_latin1'ERROR') AS `ifnull("TRUE","ERROR")`,isnull((1 / 0)) AS `1/0 is null`,(1 is not null) AS `1 is not null`
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| select 1 | NULL,1 & NULL,1+NULL,1-NULL;
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| 1 | NULL	1 & NULL	1+NULL	1-NULL
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| NULL	NULL	NULL	NULL
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| select NULL=NULL,NULL<>NULL,IFNULL(NULL,1.1)+0,IFNULL(NULL,1) | 0;
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| NULL=NULL	NULL<>NULL	IFNULL(NULL,1.1)+0	IFNULL(NULL,1) | 0
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| NULL	NULL	1.1	1
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| select strcmp("a",NULL),(1<NULL)+0.0,NULL regexp "a",null like "a%","a%" like null;
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| strcmp("a",NULL)	(1<NULL)+0.0	NULL regexp "a"	null like "a%"	"a%" like null
 | |
| NULL	NULL	NULL	NULL	NULL
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| select concat("a",NULL),replace(NULL,"a","b"),replace("string","i",NULL),replace("string",NULL,"i"),insert("abc",1,1,NULL),left(NULL,1);
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| concat("a",NULL)	replace(NULL,"a","b")	replace("string","i",NULL)	replace("string",NULL,"i")	insert("abc",1,1,NULL)	left(NULL,1)
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| NULL	NULL	NULL	NULL	NULL	NULL
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| select repeat("a",0),repeat("ab",5+5),repeat("ab",-1),reverse(NULL);
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| repeat("a",0)	repeat("ab",5+5)	repeat("ab",-1)	reverse(NULL)
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| 	abababababababababab		NULL
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| select field(NULL,"a","b","c");
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| field(NULL,"a","b","c")
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| 0
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| select 2 between null and 1,2 between 3 AND NULL,NULL between 1 and 2,2 between NULL and 3, 2 between 1 AND null;
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| 2 between null and 1	2 between 3 AND NULL	NULL between 1 and 2	2 between NULL and 3	2 between 1 AND null
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| 0	0	NULL	NULL	NULL
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| explain extended select 2 between null and 1,2 between 3 AND NULL,NULL between 1 and 2,2 between NULL and 3, 2 between 1 AND null;
 | |
| id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
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| 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
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| Warnings:
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| Note	1003	select (2 between NULL and 1) AS `2 between null and 1`,(2 between 3 and NULL) AS `2 between 3 AND NULL`,(NULL between 1 and 2) AS `NULL between 1 and 2`,(2 between NULL and 3) AS `2 between NULL and 3`,(2 between 1 and NULL) AS `2 between 1 AND null`
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| SELECT NULL AND NULL, 1 AND NULL, NULL AND 1, NULL OR NULL, 0 OR NULL, NULL OR 0;
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| NULL AND NULL	1 AND NULL	NULL AND 1	NULL OR NULL	0 OR NULL	NULL OR 0
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| NULL	NULL	NULL	NULL	NULL	NULL
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| SELECT (NULL OR NULL) IS NULL;
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| (NULL OR NULL) IS NULL
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| 1
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| select NULL AND 0, 0 and NULL;
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| NULL AND 0	0 and NULL
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| 0	0
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| select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."),inet_aton("");
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| inet_ntoa(null)	inet_aton(null)	inet_aton("122.256")	inet_aton("122.226.")	inet_aton("")
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| NULL	NULL	NULL	NULL	NULL
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| explain extended select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),inet_aton("122.226."),inet_aton("");
 | |
| id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
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| 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
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| Warnings:
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| Note	1003	select inet_ntoa(NULL) AS `inet_ntoa(null)`,inet_aton(NULL) AS `inet_aton(null)`,inet_aton(_latin1'122.256') AS `inet_aton("122.256")`,inet_aton(_latin1'122.226.') AS `inet_aton("122.226.")`,inet_aton(_latin1'') AS `inet_aton("")`
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| create table t1 (x int);
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| insert into t1 values (null);
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| select * from t1 where x != 0;
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| x
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| drop table t1;
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| CREATE TABLE t1 (
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| indexed_field int default NULL,
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| KEY indexed_field (indexed_field)
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| );
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| INSERT INTO t1 VALUES (NULL),(NULL);
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| SELECT * FROM t1 WHERE indexed_field=NULL;
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| indexed_field
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| SELECT * FROM t1 WHERE indexed_field IS NULL;
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| indexed_field
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| NULL
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| NULL
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| SELECT * FROM t1 WHERE indexed_field<=>NULL;
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| indexed_field
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| NULL
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| NULL
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| DROP TABLE t1;
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| create table t1 (a int, b int) engine=myisam;
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| insert into t1 values(20,null);
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| select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
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| t2.b=t3.a;
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| b	ifnull(t2.b,"this is null")
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| NULL	this is null
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| select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
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| t2.b=t3.a order by 1;
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| b	ifnull(t2.b,"this is null")
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| NULL	this is null
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| insert into t1 values(10,null);
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| select t2.b, ifnull(t2.b,"this is null") from t1 as t2 left join t1 as t3 on
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| t2.b=t3.a order by 1;
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| b	ifnull(t2.b,"this is null")
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| NULL	this is null
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| NULL	this is null
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| drop table t1;
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| 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);
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| INSERT INTO t1 SET a = "", d= "2003-01-14 03:54:55";
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| Warnings:
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| Warning	1265	Data truncated for column 'd' at row 1
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| UPDATE t1 SET d=1/NULL;
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| Warnings:
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| Warning	1265	Data truncated for column 'd' at row 1
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| UPDATE t1 SET d=NULL;
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| Warnings:
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| Warning	1048	Column 'd' cannot be null
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| INSERT INTO t1 (a) values (null);
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| ERROR 23000: Column 'a' cannot be null
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| INSERT INTO t1 (a) values (1/null);
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| ERROR 23000: Column 'a' cannot be null
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| INSERT INTO t1 (a) values (null),(null);
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| Warnings:
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| Warning	1048	Column 'a' cannot be null
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| Warning	1048	Column 'a' cannot be null
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| INSERT INTO t1 (b) values (null);
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| ERROR 23000: Column 'b' cannot be null
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| INSERT INTO t1 (b) values (1/null);
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| ERROR 23000: Column 'b' cannot be null
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| INSERT INTO t1 (b) values (null),(null);
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| Warnings:
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| Warning	1048	Column 'b' cannot be null
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| Warning	1048	Column 'b' cannot be null
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| INSERT INTO t1 (c) values (null);
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| ERROR 23000: Column 'c' cannot be null
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| INSERT INTO t1 (c) values (1/null);
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| ERROR 23000: Column 'c' cannot be null
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| INSERT INTO t1 (c) values (null),(null);
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| Warnings:
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| Warning	1048	Column 'c' cannot be null
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| Warning	1048	Column 'c' cannot be null
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| INSERT INTO t1 (d) values (null);
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| ERROR 23000: Column 'd' cannot be null
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| INSERT INTO t1 (d) values (1/null);
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| ERROR 23000: Column 'd' cannot be null
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| INSERT INTO t1 (d) values (null),(null);
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| Warnings:
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| Warning	1048	Column 'd' cannot be null
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| Warning	1048	Column 'd' cannot be null
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| select * from t1;
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| a	b	c	d
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| 	0	0000-00-00 00:00:00	0
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| 	0	0000-00-00 00:00:00	0
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| 	0	0000-00-00 00:00:00	0
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| 	0	0000-00-00 00:00:00	0
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| 	0	0000-00-00 00:00:00	0
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| 	0	0000-00-00 00:00:00	0
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| 	0	0000-00-00 00:00:00	0
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| 	0	0000-00-00 00:00:00	0
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| 	0	0000-00-00 00:00:00	0
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| drop table t1;
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| create table t1 (a int not null, b int not null, index idx(a));
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| insert into t1 values
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| (1,1), (2,2), (3,3), (4,4), (5,5), (6,6),
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| (7,7), (8,8), (9,9), (10,10), (11,11), (12,12);
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| explain select * from t1 where a between 2 and 3;
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| id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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| 1	SIMPLE	t1	range	idx	idx	4	NULL	2	Using where
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| explain select * from t1 where a between 2 and 3 or b is null;
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| id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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| 1	SIMPLE	t1	range	idx	idx	4	NULL	2	Using where
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| drop table t1;
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| select cast(NULL as signed);
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| cast(NULL as signed)
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| NULL
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| create table t1(i int, key(i));
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| insert into t1 values(1);
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| insert into t1 select i*2 from t1;
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| insert into t1 select i*2 from t1;
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| insert into t1 select i*2 from t1;
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| insert into t1 select i*2 from t1;
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| insert into t1 select i*2 from t1;
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| insert into t1 select i*2 from t1;
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| insert into t1 select i*2 from t1;
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| insert into t1 select i*2 from t1;
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| insert into t1 select i*2 from t1;
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| insert into t1 values(null);
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| explain select * from t1 where i=2 or i is null;
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| id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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| 1	SIMPLE	t1	ref_or_null	i	i	5	const	9	Using where; Using index
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| select count(*) from t1 where i=2 or i is null;
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| count(*)
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| 10
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| alter table t1 change i i int not null;
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| Warnings:
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| Warning	1265	Data truncated for column 'i' at row 513
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| explain select * from t1 where i=2 or i is null;
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| id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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| 1	SIMPLE	t1	ref	i	i	4	const	7	Using index
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| select count(*) from t1 where i=2 or i is null;
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| count(*)
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| 9
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| drop table t1;
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| set names latin2;
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| create table t1 select
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| null as c00,
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| if(1, null, 'string') as c01,
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| if(0, null, 'string') as c02,
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| ifnull(null, 'string') as c03,
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| ifnull('string', null) as c04,
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| case when 0 then null else 'string' end as c05,
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| case when 1 then null else 'string' end as c06,
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| coalesce(null, 'string') as c07,
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| coalesce('string', null) as c08,
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| least('string',null) as c09,
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| least(null, 'string') as c10,
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| greatest('string',null) as c11,
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| greatest(null, 'string') as c12,
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| nullif('string', null) as c13,
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| nullif(null, 'string') as c14,
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| trim('string' from null) as c15,
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| trim(null from 'string') as c16,
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| substring_index('string', null, 1) as c17,
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| substring_index(null, 'string', 1) as c18,
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| elt(1, null, 'string') as c19,
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| elt(1, 'string', null) as c20,
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| concat('string', null) as c21,
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| concat(null, 'string') as c22,
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| concat_ws('sep', 'string', null) as c23,
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| concat_ws('sep', null, 'string') as c24,
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| concat_ws(null, 'string', 'string') as c25,
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| make_set(3, 'string', null) as c26,
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| make_set(3, null, 'string') as c27,
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| export_set(3, null, 'off', 'sep') as c29,
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| export_set(3, 'on', null, 'sep') as c30,
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| export_set(3, 'on', 'off', null) as c31,
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| replace(null, 'from', 'to') as c32,
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| replace('str', null, 'to') as c33,
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| replace('str', 'from', null) as c34,
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| insert('str', 1, 2, null) as c35,
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| insert(null, 1, 2, 'str') as c36,
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| lpad('str', 10, null) as c37,
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| rpad(null, 10, 'str') as c38;
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| show create table t1;
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| Table	Create Table
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| t1	CREATE TABLE `t1` (
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|   `c00` binary(0) DEFAULT NULL,
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|   `c01` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c02` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c03` varchar(6) CHARACTER SET latin2 NOT NULL DEFAULT '',
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|   `c04` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c05` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c06` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c07` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c08` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c09` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c10` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c11` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c12` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c13` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c14` char(0) CHARACTER SET latin2 DEFAULT NULL,
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|   `c15` char(0) CHARACTER SET latin2 DEFAULT NULL,
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|   `c16` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c17` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c18` char(0) CHARACTER SET latin2 DEFAULT NULL,
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|   `c19` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c20` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c21` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c22` varchar(6) CHARACTER SET latin2 DEFAULT NULL,
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|   `c23` varchar(9) CHARACTER SET latin2 DEFAULT NULL,
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|   `c24` varchar(9) CHARACTER SET latin2 DEFAULT NULL,
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|   `c25` varchar(12) CHARACTER SET latin2 DEFAULT NULL,
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|   `c26` varchar(7) CHARACTER SET latin2 DEFAULT NULL,
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|   `c27` varchar(7) CHARACTER SET latin2 DEFAULT NULL,
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|   `c29` varchar(381) CHARACTER SET latin2 DEFAULT NULL,
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|   `c30` varchar(317) CHARACTER SET latin2 DEFAULT NULL,
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|   `c31` varchar(192) CHARACTER SET latin2 DEFAULT NULL,
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|   `c32` char(0) CHARACTER SET latin2 DEFAULT NULL,
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|   `c33` varchar(3) CHARACTER SET latin2 DEFAULT NULL,
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|   `c34` varchar(3) CHARACTER SET latin2 DEFAULT NULL,
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|   `c35` varchar(3) CHARACTER SET latin2 DEFAULT NULL,
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|   `c36` varchar(3) CHARACTER SET latin2 DEFAULT NULL,
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|   `c37` varchar(10) CHARACTER SET latin2 DEFAULT NULL,
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|   `c38` varchar(10) CHARACTER SET latin2 DEFAULT NULL
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| ) ENGINE=MyISAM DEFAULT CHARSET=latin1
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| drop table t1;
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| select 
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| case 'str' when 'STR' then 'str' when null then 'null' end as c01,
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| case 'str' when null then 'null' when 'STR' then 'str' end as c02,
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| field(null, 'str1', 'str2') as c03,
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| field('str1','STR1', null) as c04,
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| field('str1', null, 'STR1') as c05,
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| 'string' in ('STRING', null) as c08,
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| 'string' in (null, 'STRING') as c09;
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| c01	c02	c03	c04	c05	c08	c09
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| str	str	0	1	2	1	1
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| set names latin1;
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| create table bug19145a (e enum('a','b','c')          default 'b' , s set('x', 'y', 'z')          default 'y' ) engine=MyISAM;
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| create table bug19145b (e enum('a','b','c')          default null, s set('x', 'y', 'z')          default null) engine=MyISAM;
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| create table bug19145c (e enum('a','b','c') not null default 'b' , s set('x', 'y', 'z') not null default 'y' ) engine=MyISAM;
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| create table bug19145setnotnulldefaultnull (e enum('a','b','c')          default null, s set('x', 'y', 'z') not null default null) engine=MyISAM;
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| ERROR 42000: Invalid default value for 's'
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| create table bug19145enumnotnulldefaultnull (e enum('a','b','c') not null default null, s set('x', 'y', 'z')          default null) engine=MyISAM;
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| ERROR 42000: Invalid default value for 'e'
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| alter table bug19145a alter column e set default null;
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| alter table bug19145a alter column s set default null;
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| alter table bug19145a add column (i int);
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| alter table bug19145b alter column e set default null;
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| alter table bug19145b alter column s set default null;
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| alter table bug19145b add column (i int);
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| alter table bug19145c alter column e set default null;
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| ERROR 42000: Invalid default value for 'e'
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| alter table bug19145c alter column s set default null;
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| ERROR 42000: Invalid default value for 's'
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| alter table bug19145c add column (i int);
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| show create table bug19145a;
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| Table	Create Table
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| bug19145a	CREATE TABLE `bug19145a` (
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|   `e` enum('a','b','c') DEFAULT NULL,
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|   `s` set('x','y','z') DEFAULT NULL,
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|   `i` int(11) DEFAULT NULL
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| ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 | |
| show create table bug19145b;
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| Table	Create Table
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| bug19145b	CREATE TABLE `bug19145b` (
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|   `e` enum('a','b','c') DEFAULT NULL,
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|   `s` set('x','y','z') DEFAULT NULL,
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|   `i` int(11) DEFAULT NULL
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| ) ENGINE=MyISAM DEFAULT CHARSET=latin1
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| show create table bug19145c;
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| Table	Create Table
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| bug19145c	CREATE TABLE `bug19145c` (
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|   `e` enum('a','b','c') NOT NULL DEFAULT 'b',
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|   `s` set('x','y','z') NOT NULL DEFAULT 'y',
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|   `i` int(11) DEFAULT NULL
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| ) ENGINE=MyISAM DEFAULT CHARSET=latin1
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| drop table bug19145a;
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| drop table bug19145b;
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| drop table bug19145c;
 |