Don't display 'usage' privilege in TABLE_PRIVILEGES if we have columns privileges

mysqldump skips information_schema db
'use' now can use information_schema db
changed value of column 'Null' to 'NO' if column is not nullable


client/mysqldump.c:
  mysqldump skips information_schema db
mysql-test/r/alter_table.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/create.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/ctype_collate.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/ctype_recoding.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/ctype_ujis.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/drop.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/func_sapdb.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/func_time.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/gis.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/information_schema.result:
  Added couple of tests
mysql-test/r/information_schema_inno.result:
  Removed coulmn 'CONTRAINT_METOD' from TABLE_CONSTRAINTS
  Added column 'POSITION_IN_UNIQUE_CONSTRAINT' to KEY_COLUMN_USAGE
mysql-test/r/innodb.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/ndb_autodiscover.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/ps_1general.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/rpl000009.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/rpl_create_database.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/schema.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/select.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/show_check.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/sp.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/type_enum.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/r/type_ranges.result:
  changed value of column 'Null' to 'NO' if column is not nullable
mysql-test/t/information_schema.test:
  Added couple of tests
sql/sql_acl.cc:
  Don't display 'usage' privilege in TABLE_PRIVILEGES if we have columns privileges
sql/sql_db.cc:
  'use' now can use information_schema db
sql/sql_show.cc:
  code cleanup
  informaton_schema(IS) db now contains data about IS itself
sql/sql_yacc.yy:
  A fix(wrong behavour of 'SHOW COLUMNS, SHOW KEYS' with 'where condition')

client/mysqldump.c

@@ -1935,6 +1935,10 @@ static int dump_databases(char **db_names)
 
 static int init_dumping(char *database)
 {
+  if (mysql_get_server_version(sock) >= 50003 &&
+      !strcmp(database, "information_schema"))
+    return 1;
+
   if (mysql_select_db(sock, database))
   {
     DBerror(sock, "when selecting the database");

mysql-test/r/alter_table.result

@@ -52,9 +52,9 @@ KEY NAME (NAME));
 ALTER TABLE t1 CHANGE NAME NAME CHAR(80) not null;
 SHOW FULL COLUMNS FROM t1;
 Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
-GROUP_ID	int(10) unsigned	NULL		PRI	0		select,insert,update,references	
-LANG_ID	smallint(5) unsigned	NULL		PRI	0		select,insert,update,references	
-NAME	char(80)	latin1_swedish_ci		MUL			select,insert,update,references	
+GROUP_ID	int(10) unsigned	NULL	NO	PRI	0		select,insert,update,references	
+LANG_ID	smallint(5) unsigned	NULL	NO	PRI	0		select,insert,update,references	
+NAME	char(80)	latin1_swedish_ci	NO	MUL			select,insert,update,references	
 DROP TABLE t1;
 create table t1 (n int);
 insert into t1 values(9),(3),(12),(10);
@@ -187,7 +187,7 @@ alter table t1 rename t2;
 alter table t2 rename t1, add c char(10) comment "no comment";
 show columns from t1;
 Field	Type	Null	Key	Default	Extra
-i	int(10) unsigned		PRI	NULL	auto_increment
+i	int(10) unsigned	NO	PRI	NULL	auto_increment
 c	char(10)	YES		NULL	
 drop table t1;
 create table t1 (a int, b int);

mysql-test/r/create.result

@@ -100,12 +100,12 @@ drop table t2;
 create table t2 select now() as a , curtime() as b, curdate() as c , 1+1 as d , 1.0 + 1 as e , 33333333333333333 + 3 as f;
 describe t2;
 Field	Type	Null	Key	Default	Extra
-a	datetime			0000-00-00 00:00:00	
-b	time			00:00:00	
-c	date			0000-00-00	
-d	bigint(17)			0	
-e	double(18,1)			0.0	
-f	bigint(17)			0	
+a	datetime	NO		0000-00-00 00:00:00	
+b	time	NO		00:00:00	
+c	date	NO		0000-00-00	
+d	bigint(17)	NO		0	
+e	double(18,1)	NO		0.0	
+f	bigint(17)	NO		0	
 drop table t2;
 create table t2 select CAST("2001-12-29" AS DATE) as d, CAST("20:45:11" AS TIME) as t, CAST("2001-12-29  20:45:11" AS DATETIME) as dt;
 describe t2;
@@ -412,13 +412,13 @@ from t1;
 explain t2;
 Field	Type	Null	Key	Default	Extra
 a	int(11)	YES		NULL	
-b	bigint(11)			0	
-c	bigint(10)			0	
+b	bigint(11)	NO		0	
+c	bigint(10)	NO		0	
 d	date	YES		NULL	
-e	varchar(1)				
+e	varchar(1)	NO			
 f	datetime	YES		NULL	
 g	time	YES		NULL	
-h	longblob				
+h	longblob	NO			
 dd	time	YES		NULL	
 select * from t2;
 a	b	c	d	e	f	g	h	dd

mysql-test/r/ctype_collate.result

@@ -488,7 +488,7 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 SHOW FIELDS FROM  t1;
 Field	Type	Null	Key	Default	Extra
-latin1_f	char(32)				
+latin1_f	char(32)	NO			
 ALTER TABLE t1 CHANGE latin1_f 
 latin1_f CHAR(32) CHARACTER SET latin1 COLLATE latin1_bin;
 SHOW CREATE TABLE t1;

mysql-test/r/ctype_recoding.result

@@ -54,7 +54,7 @@ Table	Create Table
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT=' '
 SHOW FIELDS FROM ;
 Field	Type	Null	Key	Default	Extra
-	char(32)				
+	char(32)	NO			
 SET CHARACTER SET cp1251;
 SHOW TABLES;
 Tables_in_test
@@ -66,7 +66,7 @@ Table	Create Table
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT=' '
 SHOW FIELDS FROM ;
 Field	Type	Null	Key	Default	Extra
-	char(32)				
+	char(32)	NO			
 SET CHARACTER SET utf8;
 SHOW TABLES;
 Tables_in_test
@@ -78,7 +78,7 @@ Table	Create Table
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='комментарий таблицы'
 SHOW FIELDS FROM таблица;
 Field	Type	Null	Key	Default	Extra
-поле	char(32)				
+поле	char(32)	NO			
 SET CHARACTER SET koi8r;
 DROP TABLE ;
 SET CHARACTER SET default;

mysql-test/r/ctype_ujis.result

@@ -123,7 +123,7 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=MyISAM DEFAULT CHARSET=ujis
 SHOW COLUMNS FROM t1;
 Field	Type	Null	Key	Default	Extra
-a	char(1)				
+a	char(1)	NO			
 b	enum('あ','い')	YES		NULL	
 DROP TABLE t1;
 CREATE TABLE t1

mysql-test/r/drop.result

@@ -32,6 +32,7 @@ unlock tables;
 create database mysqltest;
 show databases;
 Database
+information_schema
 mysql
 mysqltest
 test
@@ -42,6 +43,7 @@ unlock tables;
 drop database mysqltest;
 show databases;
 Database
+information_schema
 mysql
 test
 drop database mysqltest;

mysql-test/r/func_sapdb.result

@@ -174,12 +174,12 @@ date("1997-12-31 23:59:59.000001") as f8,
 time("1997-12-31 23:59:59.000001") as f9;
 describe t1;
 Field	Type	Null	Key	Default	Extra
-f1	date			0000-00-00	
+f1	date	NO		0000-00-00	
 f2	datetime	YES		NULL	
 f3	time	YES		NULL	
-f4	time			00:00:00	
-f5	time			00:00:00	
-f6	time			00:00:00	
+f4	time	NO		00:00:00	
+f5	time	NO		00:00:00	
+f6	time	NO		00:00:00	
 f7	datetime	YES		NULL	
 f8	date	YES		NULL	
 f9	time	YES		NULL	

mysql-test/r/func_time.result

@@ -611,7 +611,7 @@ create table t1 select last_day('2000-02-05') as a,
 from_days(to_days("960101")) as b;
 describe t1;
 Field	Type	Null	Key	Default	Extra
-a	date			0000-00-00	
+a	date	NO		0000-00-00	
 b	date	YES		NULL	
 select * from t1;
 a	b

mysql-test/r/gis.result

@@ -9,35 +9,35 @@ CREATE TABLE gis_geometrycollection  (fid INTEGER NOT NULL PRIMARY KEY, g GEOMET
 CREATE TABLE gis_geometry (fid INTEGER NOT NULL PRIMARY KEY, g GEOMETRY);
 SHOW FIELDS FROM gis_point;
 Field	Type	Null	Key	Default	Extra
-fid	int(11)		PRI		
+fid	int(11)	NO	PRI		
 g	point	YES		NULL	
 SHOW FIELDS FROM gis_line;
 Field	Type	Null	Key	Default	Extra
-fid	int(11)		PRI		
+fid	int(11)	NO	PRI		
 g	linestring	YES		NULL	
 SHOW FIELDS FROM gis_polygon;
 Field	Type	Null	Key	Default	Extra
-fid	int(11)		PRI		
+fid	int(11)	NO	PRI		
 g	polygon	YES		NULL	
 SHOW FIELDS FROM gis_multi_point;
 Field	Type	Null	Key	Default	Extra
-fid	int(11)		PRI		
+fid	int(11)	NO	PRI		
 g	multipoint	YES		NULL	
 SHOW FIELDS FROM gis_multi_line;
 Field	Type	Null	Key	Default	Extra
-fid	int(11)		PRI		
+fid	int(11)	NO	PRI		
 g	multilinestring	YES		NULL	
 SHOW FIELDS FROM gis_multi_polygon;
 Field	Type	Null	Key	Default	Extra
-fid	int(11)		PRI		
+fid	int(11)	NO	PRI		
 g	multipolygon	YES		NULL	
 SHOW FIELDS FROM gis_geometrycollection;
 Field	Type	Null	Key	Default	Extra
-fid	int(11)		PRI		
+fid	int(11)	NO	PRI		
 g	geometrycollection	YES		NULL	
 SHOW FIELDS FROM gis_geometry;
 Field	Type	Null	Key	Default	Extra
-fid	int(11)		PRI		
+fid	int(11)	NO	PRI		
 g	geometry	YES		NULL	
 INSERT INTO gis_point VALUES 
 (101, PointFromText('POINT(10 10)')),
@@ -430,7 +430,7 @@ mln	multilinestring	YES		NULL
 mpg	multipolygon	YES		NULL	
 gc	geometrycollection	YES		NULL	
 gm	geometry	YES		NULL	
-fid	int(11)				
+fid	int(11)	NO			
 DROP TABLE t1;
 SELECT AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))));
 AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))))

mysql-test/r/information_schema.result

@@ -5,10 +5,12 @@ NULL	mysql	latin1	NULL
 NULL	test	latin1	NULL
 select schema_name from information_schema.schemata;
 schema_name
+information_schema
 mysql
 test
 show databases *;
 CATALOG_NAME	SCHEMA_NAME	DEFAULT_CHARACTER_SET_NAME	SQL_PATH
+NULL	information_schema	utf8	NULL
 NULL	mysql	latin1	NULL
 NULL	test	latin1	NULL
 show databases like 't%';
@@ -16,6 +18,7 @@ Database (t%)
 test
 show databases;
 Database
+information_schema
 mysql
 test
 show databases * where schema_name like 't%';
@@ -31,6 +34,22 @@ create table testtets.t4(a int);
 create view v1 (c) as select table_name from information_schema.TABLES;
 select * from v1;
 c
+SCHEMATA
+TABLES
+COLUMNS
+CHARACTER_SETS
+COLLATIONS
+COLLATION_CHARACTER_SET_APPLICABILITY
+ROUTINES
+STATISTICS
+VIEWS
+USER_PRIVILEGES
+SCHEMA_PRIVILEGES
+TABLE_PRIVILEGES
+COLUMN_PRIVILEGES
+TABLE_CONSTRAINTS
+KEY_COLUMN_USAGE
+TABLE_NAMES
 columns_priv
 db
 func
@@ -56,6 +75,10 @@ select c,table_name from v1
 left join information_schema.TABLES v2 on (v1.c=v2.table_name)
 where v1.c like "t%";
 c	table_name
+TABLES	TABLES
+TABLE_PRIVILEGES	TABLE_PRIVILEGES
+TABLE_CONSTRAINTS	TABLE_CONSTRAINTS
+TABLE_NAMES	TABLE_NAMES
 tables_priv	tables_priv
 time_zone	time_zone
 time_zone_leap_second	time_zone_leap_second
@@ -70,6 +93,10 @@ select c, v2.table_name from v1
 right join information_schema.TABLES v2 on (v1.c=v2.table_name)
 where v1.c like "t%";
 c	table_name
+TABLES	TABLES
+TABLE_PRIVILEGES	TABLE_PRIVILEGES
+TABLE_CONSTRAINTS	TABLE_CONSTRAINTS
+TABLE_NAMES	TABLE_NAMES
 tables_priv	tables_priv
 time_zone	time_zone
 time_zone_leap_second	time_zone_leap_second
@@ -88,11 +115,10 @@ t4
 select * from information_schema.STATISTICS where TABLE_SCHEMA = "testtets";
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	NON_UNIQUE	INDEX_SCHEMA	INDEX_NAME	SEQ_IN_INDEX	COLUMN_NAME	COLLATION	CARDINALITY	SUB_PART	PACKED	NULLABLE	INDEX_TYPE	COMMENT
 NULL	testtets	t1	1	testtets	string_data	1	b	A	NULL	NULL	NULL	YES	BTREE	
-show keys * where TABLE_SCHEMA Like "test%";
+show keys * from t3 where TABLE_SCHEMA Like "test%";
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	NON_UNIQUE	INDEX_SCHEMA	INDEX_NAME	SEQ_IN_INDEX	COLUMN_NAME	COLLATION	CARDINALITY	SUB_PART	PACKED	NULLABLE	INDEX_TYPE	COMMENT
 NULL	test	t3	1	test	a_data	1	a	A	NULL	NULL	NULL	YES	BTREE	
-NULL	testtets	t1	1	testtets	string_data	1	b	A	NULL	NULL	NULL	YES	BTREE	
-show keys where INDEX_NAME = "a_data";
+show keys from t3 where INDEX_NAME = "a_data";
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
 t3	1	a_data	1	a	A	NULL	NULL	NULL	YES	BTREE	
 show tables like 't%';
@@ -113,15 +139,15 @@ Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
 a	int(11)	NULL	YES	MUL	NULL		select,insert,update,references	
 show full columns from mysql.db like "Insert%";
 Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
-Insert_priv	enum('N','Y')	utf8_bin			N		select,insert,update,references	
+Insert_priv	enum('N','Y')	utf8_bin	NO		N		select,insert,update,references	
 show full columns from v1;
 Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
-c	varchar(64)	utf8_general_ci					select,insert,update,references	
+c	varchar(64)	utf8_general_ci	NO				select,insert,update,references	
 select * from information_schema.COLUMNS where table_name="t1"
 and column_name= "a";
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	COLUMN_DEFAULT	IS_NULLABLE	DATA_TYPE	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH	NUMERIC_PRECISION	NUMERIC_SCALE	CHARACTER_SET_NAME	COLLATION_NAME	COLUMN_TYPE	COLUMN_KEY	EXTRA	PRIVILEGES	COLUMN_COMMENT
 NULL	testtets	t1	a	1	NULL	YES	int	11	11	11	0	NULL	NULL	int(11)			select,insert,update,references	
-show columns * where table_name = "t1";
+show columns * from testtets.t1 where table_name = "t1";
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	COLUMN_DEFAULT	IS_NULLABLE	DATA_TYPE	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH	NUMERIC_PRECISION	NUMERIC_SCALE	CHARACTER_SET_NAME	COLLATION_NAME	COLUMN_TYPE	COLUMN_KEY	EXTRA	PRIVILEGES	COLUMN_COMMENT
 NULL	testtets	t1	a	1	NULL	YES	int	11	11	11	0	NULL	NULL	int(11)			select,insert,update,references	
 NULL	testtets	t1	b	2	NULL	YES	varchar	30	30	NULL	NULL	latin1	latin1_swedish_ci	varchar(30)	MUL		select,insert,update,references	
@@ -255,6 +281,7 @@ count(*)
 create view v0 (c) as select schema_name from information_schema.schemata;
 select * from v0;
 c
+information_schema
 mysql
 test
 explain select * from v0;
@@ -351,18 +378,18 @@ t1	CREATE TABLE `t1` (
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 select * from information_schema.TABLE_CONSTRAINTS where
 TABLE_SCHEMA= "test";
-CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE	CONSTRAINT_METHOD
-NULL	test	PRIMARY	test	t1	PRIMARY KEY	NULL
-NULL	test	constraint_1	test	t1	UNIQUE	NULL
-NULL	test	key_1	test	t1	UNIQUE	NULL
-NULL	test	key_2	test	t1	UNIQUE	NULL
+CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE
+NULL	test	PRIMARY	test	t1	PRIMARY KEY
+NULL	test	constraint_1	test	t1	UNIQUE
+NULL	test	key_1	test	t1	UNIQUE
+NULL	test	key_2	test	t1	UNIQUE
 select * from information_schema.KEY_COLUMN_USAGE where
 TABLE_SCHEMA= "test";
-CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
-NULL	test	PRIMARY	NULL	test	t1	a	1	NULL	NULL	NULL
-NULL	test	constraint_1	NULL	test	t1	a	1	NULL	NULL	NULL
-NULL	test	key_1	NULL	test	t1	a	1	NULL	NULL	NULL
-NULL	test	key_2	NULL	test	t1	a	1	NULL	NULL	NULL
+CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	POSITION_IN_UNIQUE_CONSTRAINT	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
+NULL	test	PRIMARY	NULL	test	t1	a	1	NULL	NULL	NULL	NULL
+NULL	test	constraint_1	NULL	test	t1	a	1	NULL	NULL	NULL	NULL
+NULL	test	key_1	NULL	test	t1	a	1	NULL	NULL	NULL	NULL
+NULL	test	key_2	NULL	test	t1	a	1	NULL	NULL	NULL	NULL
 select table_name from information_schema.TABLES where table_schema like "test%";
 table_name
 t1
@@ -392,7 +419,6 @@ GRANTEE	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	PRIVILEGE_TYPE	IS_GRAN
 'joe'@'localhost'	NULL	test	t1	a	SELECT	YES
 select * from INFORMATION_SCHEMA.TABLE_PRIVILEGES;
 GRANTEE	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	PRIVILEGE_TYPE	IS_GRANTABLE
-'joe'@'localhost'	NULL	test	t1	USAGE	YES
 drop view v1, v2, v3;
 drop table t1;
 delete from mysql.user where user='joe';
@@ -404,7 +430,7 @@ create procedure px5 ()
 begin
 declare v int;
 declare c cursor for select version from
-information_schema.tables;
+information_schema.tables where table_schema <> 'information_schema';
 open c;
 fetch c into v;
 select v;
@@ -432,6 +458,7 @@ select s1 from t1 where s1 in (select version from
 information_schema.tables) union select version from
 information_schema.tables;
 s1
+0
 9
 10
 drop table t1;
@@ -508,11 +535,6 @@ proc	modified	timestamp
 proc	sql_mode	set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','NOT_USED','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO')
 proc	comment	char(64)
 drop table t115;
-create view vk as select count(*) from information_schema.tables a;
-select * from vk;
-count(*)
-17
-drop view vk;
 create procedure p108 () begin declare c cursor for select data_type
 from information_schema.columns;  open c; open c; end;//
 call p108()//
@@ -529,8 +551,37 @@ show index from vo;
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
 select * from information_schema.TABLE_CONSTRAINTS where
 TABLE_NAME= "vo";
-CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE	CONSTRAINT_METHOD
+CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE
 select * from information_schema.KEY_COLUMN_USAGE where
 TABLE_NAME= "vo";
-CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
+CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	POSITION_IN_UNIQUE_CONSTRAINT	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
 drop view vo;
+select TABLE_NAME,TABLE_TYPE,ENGINE
+from information_schema.tables 
+where table_schema='information_schema' limit 2;
+TABLE_NAME	TABLE_TYPE	ENGINE
+SCHEMATA	TEMPORARY	MyISAM
+TABLES	TEMPORARY	MyISAM
+show tables from information_schema like "t%";
+Tables_in_information_schema (t%)
+create database information_schema;
+ERROR HY000: Can't create database 'information_schema'; database exists
+use information_schema;
+show full tables like "T%";
+Tables_in_information_schema (T%)	Table_type
+TABLES	TEMPORARY
+TABLE_PRIVILEGES	TEMPORARY
+TABLE_CONSTRAINTS	TEMPORARY
+TABLE_NAMES	TEMPORARY
+create table t1(a int);
+ERROR 42S02: Unknown table 't1' in information_schema
+use test;
+show tables;
+Tables_in_test
+use information_schema;
+show tables like "T%";
+Tables_in_information_schema (T%)
+TABLES
+TABLE_PRIVILEGES
+TABLE_CONSTRAINTS
+TABLE_NAMES

mysql-test/r/information_schema_inno.result

@@ -4,16 +4,16 @@ FOREIGN KEY (t1_id) REFERENCES t1(id)  ON DELETE CASCADE,
 FOREIGN KEY (t1_id) REFERENCES t1(id)  ON UPDATE CASCADE) ENGINE=INNODB;
 select * from information_schema.TABLE_CONSTRAINTS where
 TABLE_SCHEMA= "test";
-CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE	CONSTRAINT_METHOD
-NULL	test	PRIMARY	test	t1	PRIMARY KEY	NULL
-NULL	test	PRIMARY	test	t2	PRIMARY KEY	NULL
-NULL	test	t2_ibfk_1	test	t2	FOREIGN KEY	ON DELETE CASCADE
-NULL	test	t2_ibfk_2	test	t2	FOREIGN KEY	ON UPDATE CASCADE
+CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE
+NULL	test	PRIMARY	test	t1	PRIMARY KEY
+NULL	test	PRIMARY	test	t2	PRIMARY KEY
+NULL	test	t2_ibfk_1	test	t2	FOREIGN KEY
+NULL	test	t2_ibfk_2	test	t2	FOREIGN KEY
 select * from information_schema.KEY_COLUMN_USAGE where
 TABLE_SCHEMA= "test";
-CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
-NULL	test	PRIMARY	NULL	test	t1	id	1	NULL	NULL	NULL
-NULL	test	PRIMARY	NULL	test	t2	id	1	NULL	NULL	NULL
-NULL	test	t2_ibfk_1	NULL	test	t2	t1_id	1	NULL		id
-NULL	test	t2_ibfk_2	NULL	test	t2	t1_id	1	NULL		id
+CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	POSITION_IN_UNIQUE_CONSTRAINT	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
+NULL	test	PRIMARY	NULL	test	t1	id	1	NULL	NULL	NULL	NULL
+NULL	test	PRIMARY	NULL	test	t2	id	1	NULL	NULL	NULL	NULL
+NULL	test	t2_ibfk_1	NULL	test	t2	t1_id	1	1	test	t1	id
+NULL	test	t2_ibfk_2	NULL	test	t2	t1_id	1	1	test	t1	id
 drop table t2, t1;

mysql-test/r/innodb.result

@@ -931,7 +931,7 @@ drop table t1;
 create table t1 (t int not null default 1, key (t)) engine=innodb;
 desc t1;
 Field	Type	Null	Key	Default	Extra
-t	int(11)		MUL	1	
+t	int(11)	NO	MUL	1	
 drop table t1;
 CREATE TABLE t1 (
 number bigint(20) NOT NULL default '0',

mysql-test/r/ndb_autodiscover.result

@@ -355,6 +355,7 @@ drop table t2;
 drop database test2;
 show databases;
 Database
+information_schema
 mysql
 test
 use test;

mysql-test/r/ps_1general.result

@@ -254,6 +254,7 @@ a int primary key, b char(10)
 prepare stmt4 from ' show databases ';
 execute stmt4;
 Database
+information_schema
 mysql
 test
 prepare stmt4 from ' show tables from test like ''t2%'' ';
@@ -263,7 +264,7 @@ t2
 prepare stmt4 from ' show columns from t2 from test like ''a%'' ';
 execute stmt4;
 Field	Type	Null	Key	Default	Extra
-a	int(11)		PRI		
+a	int(11)	NO	PRI		
 create index t2_idx on t2(b);
 prepare stmt4 from ' show index from t2 from test ';
 execute stmt4;
@@ -410,7 +411,7 @@ drop user drop_user@localhost;
 prepare stmt3 from ' describe t2 ';
 execute stmt3;
 Field	Type	Null	Key	Default	Extra
-a	int(11)		PRI		
+a	int(11)	NO	PRI		
 b	char(10)	YES	MUL	NULL	
 drop table t2 ;
 execute stmt3;

mysql-test/r/rpl000009.result

@@ -32,6 +32,7 @@ create database mysqltest2;
 create database mysqltest;
 show databases;
 Database
+information_schema
 mysql
 mysqltest
 mysqltest2
@@ -48,6 +49,7 @@ insert into mysqltest.t2 values (11, 'eleven test'), (12, 'twelve test'),
 set sql_log_bin = 1;
 show databases;
 Database
+information_schema
 mysql
 test
 create database mysqltest2;
@@ -66,6 +68,7 @@ insert into mysqltest.t3 values (1, 'original bar.t3');
 load data from master;
 show databases;
 Database
+information_schema
 mysql
 mysqltest
 mysqltest2

mysql-test/r/rpl_create_database.result

@@ -22,6 +22,7 @@ USE mysqltest_sisyfos;
 ALTER DATABASE mysqltest_bob CHARACTER SET latin1;
 SHOW DATABASES;
 Database
+information_schema
 mysql
 mysqltest_bob
 mysqltest_prometheus
@@ -29,6 +30,7 @@ mysqltest_sisyfos
 test
 SHOW DATABASES;
 Database
+information_schema
 mysql
 mysqltest_prometheus
 mysqltest_sisyfos
@@ -57,6 +59,7 @@ master-bin.000001	#	Query	1	#	CREATE DATABASE mysqltest_sisyfos
 master-bin.000001	#	Query	1	#	use `mysqltest_sisyfos`; CREATE TABLE t2 (a INT)
 SHOW DATABASES;
 Database
+information_schema
 mysql
 mysqltest_bob
 mysqltest_prometheus
@@ -64,6 +67,7 @@ mysqltest_sisyfos
 test
 SHOW DATABASES;
 Database
+information_schema
 mysql
 mysqltest_prometheus
 mysqltest_sisyfos

mysql-test/r/schema.result

@@ -4,6 +4,7 @@ Database	Create Database
 foo	CREATE DATABASE `foo` /*!40100 DEFAULT CHARACTER SET latin1 */
 show schemas;
 Database
+information_schema
 foo
 mysql
 test

mysql-test/r/select.result

@@ -2034,20 +2034,20 @@ show tables from test like "t?";
 Tables_in_test (t?)
 show full columns from t2;
 Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
-auto	int(11)	NULL		PRI	NULL	auto_increment	select,insert,update,references	
-fld1	int(6) unsigned zerofill	NULL		UNI	000000		select,insert,update,references	
-companynr	tinyint(2) unsigned zerofill	NULL			00		select,insert,update,references	
-fld3	char(30)	latin1_swedish_ci		MUL			select,insert,update,references	
-fld4	char(35)	latin1_swedish_ci					select,insert,update,references	
-fld5	char(35)	latin1_swedish_ci					select,insert,update,references	
-fld6	char(4)	latin1_swedish_ci					select,insert,update,references	
+auto	int(11)	NULL	NO	PRI	NULL	auto_increment	select,insert,update,references	
+fld1	int(6) unsigned zerofill	NULL	NO	UNI	000000		select,insert,update,references	
+companynr	tinyint(2) unsigned zerofill	NULL	NO		00		select,insert,update,references	
+fld3	char(30)	latin1_swedish_ci	NO	MUL			select,insert,update,references	
+fld4	char(35)	latin1_swedish_ci	NO				select,insert,update,references	
+fld5	char(35)	latin1_swedish_ci	NO				select,insert,update,references	
+fld6	char(4)	latin1_swedish_ci	NO				select,insert,update,references	
 show full columns from t2 from test like 'f%';
 Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
-fld1	int(6) unsigned zerofill	NULL		UNI	000000		select,insert,update,references	
-fld3	char(30)	latin1_swedish_ci		MUL			select,insert,update,references	
-fld4	char(35)	latin1_swedish_ci					select,insert,update,references	
-fld5	char(35)	latin1_swedish_ci					select,insert,update,references	
-fld6	char(4)	latin1_swedish_ci					select,insert,update,references	
+fld1	int(6) unsigned zerofill	NULL	NO	UNI	000000		select,insert,update,references	
+fld3	char(30)	latin1_swedish_ci	NO	MUL			select,insert,update,references	
+fld4	char(35)	latin1_swedish_ci	NO				select,insert,update,references	
+fld5	char(35)	latin1_swedish_ci	NO				select,insert,update,references	
+fld6	char(4)	latin1_swedish_ci	NO				select,insert,update,references	
 show full columns from t2 from test like 's%';
 Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
 show keys from t2;

mysql-test/r/show_check.result

@@ -50,6 +50,7 @@ show table status from test like "this_doesn't_exists%";
 Name	Engine	Version	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Collation	Checksum	Create_options	Comment
 show databases;
 Database
+information_schema
 mysql
 test
 show databases like "test%";
@@ -118,9 +119,9 @@ t1	CREATE TABLE t1 (
 set sql_quote_show_create=1;
 show full columns from t1;
 Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
-test_set	set('val1','val2','val3')	latin1_swedish_ci					select,insert,update,references	
+test_set	set('val1','val2','val3')	latin1_swedish_ci	NO				select,insert,update,references	
 name	char(20)	latin1_swedish_ci	YES		O'Brien		select,insert,update,references	O'Brien as default
-c	int(11)	NULL					select,insert,update,references	int column
+c	int(11)	NULL	NO				select,insert,update,references	int column
 c-b	int(11)	NULL	YES		NULL		select,insert,update,references	name with a minus
 space 2	int(11)	NULL	YES		NULL		select,insert,update,references	name with a space
 drop table t1;

mysql-test/r/sp.result

@@ -1646,8 +1646,8 @@ test	CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET latin1 */
 Database (foo)
 Level	Code	Message
 Field	Type	Null	Key	Default	Extra
-id	char(16)				
-data	int(11)				
+id	char(16)	NO			
+data	int(11)	NO			
 Grants for root@localhost
 GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
@@ -1696,8 +1696,8 @@ test	CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET latin1 */
 Database (foo)
 Level	Code	Message
 Field	Type	Null	Key	Default	Extra
-id	char(16)				
-data	int(11)				
+id	char(16)	NO			
+data	int(11)	NO			
 Grants for root@localhost
 GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment

mysql-test/r/type_enum.result

@@ -1654,7 +1654,7 @@ set names latin1;
 create table t1 (a enum(0xE4, '1', '2') not null default 0xE4);
 show columns from t1;
 Field	Type	Null	Key	Default	Extra
-a	enum('','1','2')				
+a	enum('','1','2')	NO			
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
@@ -1675,7 +1675,7 @@ t1	CREATE TABLE `t1` (
 show columns from t1;
 Field	Type	Null	Key	Default	Extra
 a	int(11)	YES		1	
-b	enum('value','_value','')			value	
+b	enum('value','_value','')	NO		value	
 drop table t1;
 CREATE TABLE t1 (c enum('a', 'A') BINARY);
 INSERT INTO t1 VALUES ('a'),('A');

mysql-test/t/information_schema.test

@@ -34,8 +34,8 @@ select table_name from information_schema.TABLES
 where table_schema = "testtets" and table_name like "t%";
 
 select * from information_schema.STATISTICS where TABLE_SCHEMA = "testtets";
-show keys * where TABLE_SCHEMA Like "test%";
-show keys where INDEX_NAME = "a_data";
+show keys * from t3 where TABLE_SCHEMA Like "test%";
+show keys from t3 where INDEX_NAME = "a_data";
 
 show tables like 't%';
 --replace_column 15 # 16 #
@@ -48,7 +48,7 @@ show full columns from mysql.db like "Insert%";
 show full columns from v1;
 select * from information_schema.COLUMNS where table_name="t1"
 and column_name= "a";
-show columns * where table_name = "t1";
+show columns * from testtets.t1 where table_name = "t1";
 
 drop view v1;
 drop tables testtets.t4, testtets.t1, t2, t3;
@@ -198,7 +198,7 @@ create procedure px5 ()
 begin
 declare v int;
 declare c cursor for select version from
-information_schema.tables;
+information_schema.tables where table_schema <> 'information_schema';
 open c;
 fetch c into v;
 select v;
@@ -250,10 +250,6 @@ from information_schema.columns where table_name = 'proc';
 select * from t115;
 drop table t115;
 
-create view vk as select count(*) from information_schema.tables a;
-select * from vk;
-drop view vk;
-
 delimiter //;
 create procedure p108 () begin declare c cursor for select data_type
 from information_schema.columns;  open c; open c; end;//
@@ -274,3 +270,19 @@ TABLE_NAME= "vo";
 select * from information_schema.KEY_COLUMN_USAGE where
 TABLE_NAME= "vo"; 
 drop view vo;
+
+select TABLE_NAME,TABLE_TYPE,ENGINE
+from information_schema.tables 
+where table_schema='information_schema' limit 2;
+show tables from information_schema like "t%";
+
+--error 1007
+create database information_schema;
+use information_schema;
+show full tables like "T%";
+--error 1109
+create table t1(a int);
+use test;
+show tables;
+use information_schema;
+show tables like "T%";

sql/sql_acl.cc

@@ -4670,9 +4670,11 @@ int fill_schema_table_privileges(THD *thd, TABLE_LIST *tables, COND *cond)
     if (!(user=grant_table->user))
       user= "";
     ulong table_access= grant_table->privs;
-    if (table_access != 0)
+    if (table_access)
     {
       ulong test_access= table_access & ~GRANT_ACL;
+      if (!test_access && grant_table->cols)
+        continue;
       if (!(table_access & GRANT_ACL))
         is_grantable= "NO";
 

sql/sql_db.cc

@@ -389,6 +389,13 @@ bool mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create_info,
   uint create_options= create_info ? create_info->options : 0;
   uint path_len;
   DBUG_ENTER("mysql_create_db");
+
+  /* do not create 'information_schema' db */
+  if (!my_strcasecmp(system_charset_info, db, information_schema_name.str))
+  {
+    my_error(ER_DB_CREATE_EXISTS, MYF(0), db);
+    DBUG_RETURN(-1);
+  }
   
   VOID(pthread_mutex_lock(&LOCK_mysql_create_db));
 
@@ -1015,6 +1022,7 @@ bool mysql_change_db(THD *thd, const char *name)
   char *dbname=my_strdup((char*) name,MYF(MY_WME));
   char	path[FN_REFLEN];
   HA_CREATE_INFO create;
+  bool schema_db= 0;
 #ifndef NO_EMBEDDED_ACCESS_CHECKS
   ulong db_access;
 #endif
@@ -1034,6 +1042,15 @@ bool mysql_change_db(THD *thd, const char *name)
     DBUG_RETURN(1);
   }
   DBUG_PRINT("info",("Use database: %s", dbname));
+  if (!my_strcasecmp(system_charset_info, dbname, information_schema_name.str))
+  {
+    schema_db= 1;
+#ifndef NO_EMBEDDED_ACCESS_CHECKS
+    db_access= SELECT_ACL;
+#endif
+    goto end;
+  }
+
 #ifndef NO_EMBEDDED_ACCESS_CHECKS
   if (test_all_bits(thd->master_access,DB_ACLS))
     db_access=DB_ACLS;
@@ -1064,6 +1081,7 @@ bool mysql_change_db(THD *thd, const char *name)
     my_free(dbname,MYF(0));
     DBUG_RETURN(1);
   }
+end:
   send_ok(thd);
   x_free(thd->db);
   thd->db=dbname;				// THD::~THD will free this
@@ -1071,11 +1089,19 @@ bool mysql_change_db(THD *thd, const char *name)
 #ifndef NO_EMBEDDED_ACCESS_CHECKS
   thd->db_access=db_access;
 #endif
-  strmov(path+unpack_dirname(path,path), MY_DB_OPT_FILE);
-  load_db_opt(thd, path, &create);
-  thd->db_charset= create.default_table_charset ?
-		   create.default_table_charset :
-		   thd->variables.collation_server;
-  thd->variables.collation_database= thd->db_charset;
+  if (schema_db)
+  {
+    thd->db_charset= system_charset_info;
+    thd->variables.collation_database= system_charset_info;
+  }
+  else
+  {
+    strmov(path+unpack_dirname(path,path), MY_DB_OPT_FILE);
+    load_db_opt(thd, path, &create);
+    thd->db_charset= create.default_table_charset ?
+      create.default_table_charset :
+      thd->variables.collation_server;
+    thd->variables.collation_database= thd->db_charset;
+  }
   DBUG_RETURN(0);
 }

sql/sql_yacc.yy

@@ -670,7 +670,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
 	opt_table_alias
 
 %type <table>
-	table_ident table_ident_nodb references from_table_ident
+	table_ident table_ident_nodb references
 
 %type <simple_string>
 	remember_name remember_end opt_ident opt_db text_or_password
@@ -5902,14 +5902,14 @@ show_param:
 	| ENGINE_SYM storage_engines 
 	  { Lex->create_info.db_type= $2; }
 	  show_engine_param
-	| opt_full COLUMNS ext_select_item_list from_table_ident opt_db wild_and_where
+	| opt_full COLUMNS ext_select_item_list from_or_in table_ident opt_db wild_and_where
 	  {
  	    LEX *lex= Lex;
 	    lex->sql_command= SQLCOM_SELECT;
 	    lex->orig_sql_command= SQLCOM_SHOW_FIELDS;
-	    if ($5)
-	      $4->change_db($5);
-	    if (prepare_schema_table(YYTHD, lex, $4, SCH_COLUMNS))
+	    if ($6)
+	      $5->change_db($6);
+	    if (prepare_schema_table(YYTHD, lex, $5, SCH_COLUMNS))
 	      YYABORT;
 	  }
         | NEW_SYM MASTER_SYM FOR_SYM SLAVE WITH MASTER_LOG_FILE_SYM EQ
@@ -5935,14 +5935,14 @@ show_param:
 	    LEX *lex= Lex;
 	    lex->sql_command= SQLCOM_SHOW_BINLOG_EVENTS;
           } opt_limit_clause_init
-        | keys_or_index ext_select_item_list from_table_ident opt_db where_clause
+        | keys_or_index ext_select_item_list from_or_in table_ident opt_db where_clause
           {
             LEX *lex= Lex;
             lex->sql_command= SQLCOM_SELECT;
             lex->orig_sql_command= SQLCOM_SHOW_KEYS;
-	    if ($4)
-	      $3->change_db($4);
-            if (prepare_schema_table(YYTHD, lex, $3, SCH_STATISTICS))
+	    if ($5)
+	      $4->change_db($5);
+            if (prepare_schema_table(YYTHD, lex, $4, SCH_STATISTICS))
               YYABORT;
 	  }
 	| COLUMN_SYM TYPES_SYM
@@ -6159,11 +6159,6 @@ binlog_from:
 	/* empty */ { Lex->mi.pos = 4; /* skip magic number */ }
         | FROM ulonglong_num { Lex->mi.pos = $2; };
 
-from_table_ident:
-      /* empty */       { $$= 0; }
-      | from_or_in table_ident  { $$= $2; }
-      ;
-
 wild_and_where:
       /* empty */
       | LIKE TEXT_STRING_sys