path: root/mysql-test/t/information_schema.test

# This test  uses grants, which can't get tested for embedded server
-- source include/not_embedded.inc

# Test for information_schema.schemata &
# show databases

--disable_warnings
DROP TABLE IF EXISTS t0,t1,t2,t3,t4,t5;
DROP VIEW IF EXISTS v1;
--enable_warnings


show variables where variable_name like "skip_show_database";
grant select, update, execute on test.* to mysqltest_2@localhost;
grant select, update on test.* to mysqltest_1@localhost;
create user mysqltest_3@localhost;
create user mysqltest_3;


select * from information_schema.SCHEMATA where schema_name > 'm';
select schema_name from information_schema.schemata;
show databases like 't%';
show databases;
show databases where `database` = 't%';

# Test for information_schema.tables &
# show tables

create database mysqltest;
create table mysqltest.t1(a int, b VARCHAR(30), KEY string_data (b));
create table test.t2(a int);
create table t3(a int, KEY a_data (a));
create table mysqltest.t4(a int);
create table t5 (id int auto_increment primary key);
insert into t5 values (10);
create view v1 (c) as select table_name from information_schema.TABLES;
select * from v1;

select c,table_name from v1
inner join information_schema.TABLES v2 on (v1.c=v2.table_name)
where v1.c like "t%";

select c,table_name from v1
left join information_schema.TABLES v2 on (v1.c=v2.table_name)
where v1.c like "t%";

select c, v2.table_name from v1
right join information_schema.TABLES v2 on (v1.c=v2.table_name)
where v1.c like "t%";

select table_name from information_schema.TABLES
where table_schema = "mysqltest" and table_name like "t%";

select * from information_schema.STATISTICS where TABLE_SCHEMA = "mysqltest";
show keys from t3 where Key_name = "a_data";

show tables like 't%';
--replace_column 8 # 12 # 13 #
show table status;
show full columns from t3 like "a%";
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 from mysqltest.t1 where field like "%a%";

create view mysqltest.v1 (c) as select a from mysqltest.t1;
grant select (a) on mysqltest.t1 to mysqltest_2@localhost;
grant select on mysqltest.v1 to mysqltest_3;
connect (user3,localhost,mysqltest_2,,);
connection user3;
select table_name, column_name, privileges from information_schema.columns
where table_schema = 'mysqltest' and table_name = 't1';
show columns from mysqltest.t1;
connect (user4,localhost,mysqltest_3,,mysqltest);
connection user4;
select table_name, column_name, privileges from information_schema.columns
where table_schema = 'mysqltest' and table_name = 'v1';
connection default;
disconnect user4;

drop view v1, mysqltest.v1;
drop tables mysqltest.t4, mysqltest.t1, t2, t3, t5;
drop database mysqltest;

# Test for information_schema.CHARACTER_SETS &
# SHOW CHARACTER SET

select * from information_schema.CHARACTER_SETS
where CHARACTER_SET_NAME like 'latin1%';
SHOW CHARACTER SET LIKE 'latin1%';
SHOW CHARACTER SET WHERE charset like 'latin1%';

# Test for information_schema.COLLATIONS &
# SHOW COLLATION

--replace_column 5 #
select * from information_schema.COLLATIONS
where COLLATION_NAME like 'latin1%';
--replace_column 5 #
SHOW COLLATION LIKE 'latin1%';
--replace_column 5 #
SHOW COLLATION WHERE collation like 'latin1%';

select * from information_schema.COLLATION_CHARACTER_SET_APPLICABILITY
where COLLATION_NAME like 'latin1%';

# Test for information_schema.ROUTINES &
#

--disable_warnings
drop procedure if exists sel2;
drop function if exists sub1;
drop function if exists sub2;
--enable_warnings

create function sub1(i int) returns int
  return i+1;
delimiter |;
create procedure sel2()
begin
  select * from t1;
  select * from t2;
end|
delimiter ;|

#
# Bug#7222 information_schema: errors in "routines"
#
select parameter_style, sql_data_access, dtd_identifier
from information_schema.routines;

--replace_column 5 # 6 #
show procedure status;
--replace_column 5 # 6 #
show function status;
select a.ROUTINE_NAME from information_schema.ROUTINES a,
information_schema.SCHEMATA b where
a.ROUTINE_SCHEMA = b.SCHEMA_NAME;
--replace_column 3 #
explain select a.ROUTINE_NAME from information_schema.ROUTINES a,
information_schema.SCHEMATA b where
a.ROUTINE_SCHEMA = b.SCHEMA_NAME;

select a.ROUTINE_NAME, b.name from information_schema.ROUTINES a,
mysql.proc b where a.ROUTINE_NAME = convert(b.name using utf8) order by 1;
select count(*) from information_schema.ROUTINES;

create view v1 as select routine_schema, routine_name from information_schema.routines
order by routine_schema, routine_name;
select * from v1;
drop view v1;

connect (user1,localhost,mysqltest_1,,);
connection user1;
select ROUTINE_NAME, ROUTINE_DEFINITION from information_schema.ROUTINES;
--error ER_SP_DOES_NOT_EXIST
show create function sub1;
connection user3;
select ROUTINE_NAME, ROUTINE_DEFINITION from information_schema.ROUTINES;
connection default;
grant all privileges on test.* to mysqltest_1@localhost;
connect (user2,localhost,mysqltest_1,,);
connection user2;
select ROUTINE_NAME, ROUTINE_DEFINITION from information_schema.ROUTINES;
create function sub2(i int) returns int
  return i+1;
select ROUTINE_NAME, ROUTINE_DEFINITION from information_schema.ROUTINES;
show create procedure sel2;
show create function sub1;
show create function sub2;
--replace_column 5 # 6 #
show function status like "sub2";
connection default;
disconnect user1;
disconnect user3;
drop function sub2;
show create procedure sel2;

#
# Test for views
#
create view v0 (c) as select schema_name from information_schema.schemata;
select * from v0;
--replace_column 3 #
explain select * from v0;
create view v1 (c) as select table_name from information_schema.tables
where table_name="v1";
select * from v1;
create view v2 (c) as select column_name from information_schema.columns
where table_name="v2";
select * from v2;
create view v3 (c) as select CHARACTER_SET_NAME from information_schema.character_sets
where CHARACTER_SET_NAME like "latin1%";
select * from v3;
create view v4 (c) as select COLLATION_NAME from information_schema.collations
where COLLATION_NAME like "latin1%";
select * from v4;
show keys from v4;
select * from information_schema.views where TABLE_NAME like "v%";
drop view v0, v1, v2, v3, v4;

#
# Test for privileges tables
#
create table t1 (a int);
grant select,update,insert on t1 to mysqltest_1@localhost;
grant select (a), update (a),insert(a), references(a) on t1 to mysqltest_1@localhost;
grant all on test.* to mysqltest_1@localhost with grant option;
select * from information_schema.USER_PRIVILEGES where grantee like '%mysqltest_1%';
select * from information_schema.SCHEMA_PRIVILEGES where grantee like '%mysqltest_1%';
select * from information_schema.TABLE_PRIVILEGES where grantee like '%mysqltest_1%';
select * from information_schema.COLUMN_PRIVILEGES where grantee like '%mysqltest_1%';
delete from mysql.user where user like 'mysqltest%';
delete from mysql.db where user like 'mysqltest%';
delete from mysql.tables_priv where user like 'mysqltest%';
delete from mysql.columns_priv where user like 'mysqltest%';
flush privileges;
drop table t1;


#
# Test for KEY_COLUMN_USAGE & TABLE_CONSTRAINTS tables
#

create table t1 (a int null, primary key(a));
alter table t1 add constraint constraint_1 unique (a);
alter table t1 add constraint unique key_1(a);
alter table t1 add constraint constraint_2 unique key_2(a);
show create table t1;
select * from information_schema.TABLE_CONSTRAINTS where
TABLE_SCHEMA= "test";
select * from information_schema.KEY_COLUMN_USAGE where
TABLE_SCHEMA= "test";

connection user2;
select table_name from information_schema.TABLES where table_schema like "test%";
select table_name,column_name from information_schema.COLUMNS where table_schema like "test%";
select ROUTINE_NAME from information_schema.ROUTINES;
disconnect user2;
connection default;
delete from mysql.user where user='mysqltest_1';
drop table t1;
drop procedure sel2;
drop function sub1;

create table t1(a int);
create view v1 (c) as select a from t1 with check option;
create view v2 (c) as select a from t1 WITH LOCAL CHECK OPTION;
create view v3 (c) as select a from t1 WITH CASCADED CHECK OPTION;
select * from information_schema.views;
grant select (a) on test.t1 to joe@localhost with grant option;
select * from INFORMATION_SCHEMA.COLUMN_PRIVILEGES;
select * from INFORMATION_SCHEMA.TABLE_PRIVILEGES;
drop view v1, v2, v3;
drop table t1;
delete from mysql.user where user='joe';
delete from mysql.db where user='joe';
delete from mysql.tables_priv where user='joe';
delete from mysql.columns_priv where user='joe';
flush privileges;

# QQ This results in NULLs instead of the version numbers when
# QQ a LOCK TABLES is in effect when selecting from
# QQ information_schema.tables.

--disable_parsing # until bug is fixed
delimiter //;
create procedure px5 ()
begin
declare v int;
declare c cursor for select version from
information_schema.tables where table_schema <> 'information_schema';
open c;
fetch c into v;
select v;
close c;
end;//

call px5()//
call px5()//
delimiter ;//
select sql_mode from information_schema.ROUTINES;
drop procedure px5;
--enable_parsing

create table t1 (a int not null auto_increment,b int, primary key (a));
insert into t1 values (1,1),(NULL,3),(NULL,4);
select AUTO_INCREMENT from information_schema.tables where table_name = 't1';
drop table t1;

create table t1 (s1 int);
insert into t1 values (0),(9),(0);
select s1 from t1 where s1 in (select version from
information_schema.tables) union select version from
information_schema.tables;
drop table t1;

SHOW CREATE TABLE INFORMATION_SCHEMA.character_sets;
set names latin2;
SHOW CREATE TABLE INFORMATION_SCHEMA.character_sets;
set names latin1;

create table t1 select * from information_schema.CHARACTER_SETS
where CHARACTER_SET_NAME like "latin1";
select * from t1;
alter table t1 default character set utf8;
show create table t1;
drop table t1;

create view v1 as select * from information_schema.TABLES;
drop view v1;
create table t1(a NUMERIC(5,3), b NUMERIC(5,1), c float(5,2),
 d NUMERIC(6,4), e float, f DECIMAL(6,3), g int(11), h DOUBLE(10,3),
 i DOUBLE);
select COLUMN_NAME,COLUMN_TYPE, CHARACTER_MAXIMUM_LENGTH,
 CHARACTER_OCTET_LENGTH, NUMERIC_PRECISION, NUMERIC_SCALE
from information_schema.columns where table_name= 't1';
drop table t1;

create table t115 as select table_name, column_name, column_type
from information_schema.columns where table_name = 'proc';
select * from t115;
drop table t115;

delimiter //;
create procedure p108 () begin declare c cursor for select data_type
from information_schema.columns;  open c; open c; end;//
--error ER_SP_CURSOR_ALREADY_OPEN
call p108()//
delimiter ;//
drop procedure p108;

create view v1 as select A1.table_name from information_schema.TABLES A1
where table_name= "user";
select * from v1;
drop view v1;

create view vo as select 'a' union select 'a';
show index from vo;
select * from information_schema.TABLE_CONSTRAINTS where
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 ER_DBACCESS_DENIED_ERROR
create database information_schema;
use information_schema;
show full tables like "T%";
--error ER_UNKNOWN_TABLE
create table t1(a int);
use test;
show tables;
use information_schema;
show tables like "T%";

#
# Bug#7210 information_schema: can't access when table-name = reserved word
#
select table_name from tables where table_name='user';
select column_name, privileges from columns
where table_name='user' and column_name like '%o%';

#
# Bug#7212 information_schema: "Can't find file" errors if storage engine gone
# Bug#7211 information_schema: crash if bad view
#
use test;
create function sub1(i int) returns int
  return i+1;
create table t1(f1 int);
create view v2 (c) as select f1 from t1;
create view v3 (c) as select sub1(1);
create table t4(f1 int, KEY f1_key (f1));
drop table t1;
drop function sub1;
select table_name from information_schema.views
where table_schema='test';
select table_name from information_schema.views
where table_schema='test';
select column_name from information_schema.columns
where table_schema='test';
select index_name from information_schema.statistics where table_schema='test';
select constraint_name from information_schema.table_constraints
where table_schema='test';
show create view v2;
show create table v3;
drop view v2;
drop view v3;
drop table t4;

#
# Bug#7213 information_schema: redundant non-standard TABLE_NAMES table
#
--error ER_UNKNOWN_TABLE
select * from information_schema.table_names;

#
# Bug#2719 information_schema: errors in "columns"
#
select column_type from information_schema.columns
where table_schema="information_schema" and table_name="COLUMNS" and
(column_name="character_set_name" or column_name="collation_name");

#
# Bug#2718 information_schema: errors in "tables"
#
select TABLE_ROWS from information_schema.tables where
table_schema="information_schema" and table_name="COLUMNS";
select table_type from information_schema.tables
where table_schema="mysql" and table_name="user";

# test for 'show open tables ... where'
show open tables where `table` like "user";
# test for 'show status ... where'
show status where variable_name like "%database%";
# test for 'show variables ... where'
show variables where variable_name like "skip_show_databas";

#
# Bug#7981 SHOW GLOBAL STATUS crashes server
#
# We don't actually care about the value, just that it doesn't crash.
--replace_column 2 #
show global status like "Threads_running";

#
# Bug#7915 crash,JOIN VIEW, subquery,
# SELECT .. FROM INFORMATION_SCHEMA.COLUMNS
#
create table t1(f1 int);
create table t2(f2 int);
create view v1 as select * from t1, t2;
set @got_val= (select count(*) from information_schema.columns);
drop view v1;
drop table t1, t2;

#
# Bug#7476 crash on SELECT * FROM INFORMATION_SCHEMA.TABLES
#

CREATE TABLE t_crashme ( f1 BIGINT);
CREATE VIEW a1 (t_CRASHME) AS SELECT f1 FROM t_crashme GROUP BY f1;
CREATE VIEW a2 AS SELECT t_CRASHME FROM a1;
let $tab_count= 65;
--disable_query_log
while ($tab_count)
{
     EVAL CREATE TABLE t_$tab_count (f1 BIGINT);
     dec $tab_count ;
}
--disable_result_log
SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES;
--enable_result_log
SELECT count(*) FROM INFORMATION_SCHEMA.TABLES;
let $tab_count= 65;
while ($tab_count)
{
     EVAL DROP TABLE t_$tab_count;
     dec $tab_count ;
}
--enable_query_log
drop view a2, a1;
drop table t_crashme;

#
# Bug#7215 information_schema: columns are longtext instead of varchar
# Bug#7217 information_schema: columns are varbinary() instead of timestamp
#
select table_schema,table_name, column_name from
information_schema.columns
where data_type = 'longtext';
select table_name, column_name, data_type from information_schema.columns
where data_type = 'datetime';

#
# Bug#8164 subquery with INFORMATION_SCHEMA.COLUMNS, 100 % CPU
#
SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES A
WHERE NOT EXISTS
(SELECT * FROM INFORMATION_SCHEMA.COLUMNS B
  WHERE A.TABLE_SCHEMA = B.TABLE_SCHEMA
  AND A.TABLE_NAME = B.TABLE_NAME);

#
# Bug#9344 INFORMATION_SCHEMA, wrong content, numeric columns
#

create table t1
( x_bigint BIGINT,
  x_integer INTEGER,
  x_smallint SMALLINT,
  x_decimal DECIMAL(5,3),
  x_numeric NUMERIC(5,3),
  x_real REAL,
  x_float FLOAT,
  x_double_precision DOUBLE PRECISION );
SELECT COLUMN_NAME, CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME= 't1';
drop table t1;

#
# Bug#10261 INFORMATION_SCHEMA.COLUMNS, incomplete result for non root user
#

grant select on test.* to mysqltest_4@localhost;
connect (user10261,localhost,mysqltest_4,,);
connection user10261;
SELECT TABLE_NAME, COLUMN_NAME, PRIVILEGES FROM INFORMATION_SCHEMA.COLUMNS
where COLUMN_NAME='TABLE_NAME';
connection default;
disconnect user10261;
delete from mysql.user where user='mysqltest_4';
delete from mysql.db where user='mysqltest_4';
flush privileges;

#
# Bug#9404 information_schema: Weird error messages
# with SELECT SUM() ... GROUP BY queries
#
SELECT table_schema, count(*) FROM information_schema.TABLES GROUP BY TABLE_SCHEMA;


#
# TRIGGERS table test
#
create table t1 (i int, j int);

delimiter |;
create trigger trg1 before insert on t1 for each row
begin
  if new.j > 10 then
    set new.j := 10;
  end if;
end|
create trigger trg2 before update on t1 for each row
begin
  if old.i % 2 = 0 then
    set new.j := -1;
  end if;
end|
create trigger trg3 after update on t1 for each row
begin
  if new.j = -1 then
    set @fired:= "Yes";
  end if;
end|
delimiter ;|
show triggers;
select * from information_schema.triggers;

drop trigger trg1;
drop trigger trg2;
drop trigger trg3;
drop table t1;


#
# Bug#10964 Information Schema:Authorization check on privilege tables is improper
#

create database mysqltest;
create table mysqltest.t1 (f1 int, f2 int);
create table mysqltest.t2 (f1 int);
grant select (f1) on mysqltest.t1 to user1@localhost;
grant select on mysqltest.t2 to user2@localhost;
grant select on mysqltest.* to user3@localhost;
grant select on *.* to user4@localhost;

connect (con1,localhost,user1,,mysqltest);
connect (con2,localhost,user2,,mysqltest);
connect (con3,localhost,user3,,mysqltest);
connect (con4,localhost,user4,,);
connection con1;
select * from information_schema.column_privileges order by grantee;
select * from information_schema.table_privileges order by grantee;
select * from information_schema.schema_privileges order by grantee;
select * from information_schema.user_privileges order by grantee;
show grants;
connection con2;
select * from information_schema.column_privileges order by grantee;
select * from information_schema.table_privileges order by grantee;
select * from information_schema.schema_privileges order by grantee;
select * from information_schema.user_privileges order by grantee;
show grants;
connection con3;
select * from information_schema.column_privileges order by grantee;
select * from information_schema.table_privileges order by grantee;
select * from information_schema.schema_privileges order by grantee;
select * from information_schema.user_privileges order by grantee;
show grants;
connection con4;
select * from information_schema.column_privileges where grantee like '%user%'
order by grantee;
select * from information_schema.table_privileges where grantee like '%user%'
order by grantee;
select * from information_schema.schema_privileges where grantee like '%user%'
order by grantee;
select * from information_schema.user_privileges where grantee like '%user%'
order by grantee;
show grants;
connection default;
disconnect con1;
disconnect con2;
disconnect con3;
disconnect con4;
drop user user1@localhost, user2@localhost, user3@localhost, user4@localhost;
use test;
drop database mysqltest;

#
# Bug#11055 information_schema: routines.sql_data_access has wrong value
#
--disable_warnings
drop procedure if exists p1;
drop procedure if exists p2;
--enable_warnings

create procedure p1 () modifies sql data set @a = 5;
create procedure p2 () set @a = 5;
select sql_data_access from information_schema.routines
where specific_name like 'p%';
drop procedure p1;
drop procedure p2;

#
# Bug#9434 SHOW CREATE DATABASE information_schema;
#
show create database information_schema;

#
# Bug#11057 information_schema: columns table has some questionable contents
# Bug#12301 information_schema: NUMERIC_SCALE must be 0 for integer columns
#
create table t1(f1 LONGBLOB, f2 LONGTEXT);
select column_name,data_type,CHARACTER_OCTET_LENGTH,
       CHARACTER_MAXIMUM_LENGTH
from information_schema.columns
where table_name='t1';
drop table t1;
create table t1(f1 tinyint, f2 SMALLINT, f3 mediumint, f4 int,
                f5 BIGINT, f6 BIT, f7 bit(64));
select column_name, NUMERIC_PRECISION, NUMERIC_SCALE
from information_schema.columns
where table_name='t1';
drop table t1;

#
# Bug#12127 triggers do not show in info_schema before they are used if set to the database
#
create table t1 (f1 integer);
create trigger tr1 after insert on t1 for each row set @test_var=42;
use information_schema;
select trigger_schema, trigger_name from triggers where
trigger_name='tr1';
use test;
drop table t1;

#
# Bug#12518 COLUMN_DEFAULT has wrong value if NOT NULL is set
#
create table t1 (a int not null, b int);
use information_schema;
select column_name, column_default from columns
  where table_schema='test' and table_name='t1';
use test;
show columns from t1;
drop table t1;

#
# Bug#12636 SHOW TABLE STATUS with where condition containing a subquery
#           over information schema
#

CREATE TABLE t1 (a int);
CREATE TABLE t2 (b int);

--replace_column 8 # 12 # 13 #
SHOW TABLE STATUS FROM test
  WHERE name IN ( SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
                    WHERE TABLE_SCHEMA='test' AND TABLE_TYPE='BASE TABLE');

DROP TABLE t1,t2;

#
# Bug#12905 show fields from view behaving erratically with current database
#
create table t1(f1 int);
create view v1 (c) as select f1 from t1;
connect (con5,localhost,root,,*NO-ONE*);
select database();
show fields from test.v1;
connection default;
disconnect con5;
drop view v1;
drop table t1;

#
# Bug#9846 Inappropriate error displayed while dropping table from 'INFORMATION_SCHEMA'
#
--error ER_PARSE_ERROR
alter database information_schema;
--error ER_DBACCESS_DENIED_ERROR
drop database information_schema;
--error ER_DBACCESS_DENIED_ERROR
drop table information_schema.tables;
--error ER_DBACCESS_DENIED_ERROR
alter table information_schema.tables;
#
# Bug#9683 INFORMATION_SCH: Creation of temporary table allowed in Information_schema DB
#
use information_schema;
--error ER_DBACCESS_DENIED_ERROR
create temporary table schemata(f1 char(10));
#
# Bug#10708 SP's can use INFORMATION_SCHEMA as ROUTINE_SCHEMA
#
delimiter |;
--error ER_BAD_DB_ERROR
CREATE PROCEDURE p1 ()
BEGIN
  SELECT 'foo' FROM DUAL;
END |
delimiter ;|
select ROUTINE_NAME from routines;
#
# Bug#10734 Grant of privileges other than 'select' and 'create view' should fail on schema
#
--error ER_DBACCESS_DENIED_ERROR
grant all on information_schema.* to 'user1'@'localhost';
--error ER_DBACCESS_DENIED_ERROR
grant select on information_schema.* to 'user1'@'localhost';

#
# Bug#14089 FROM list subquery always fails when information_schema is current database
#
use test;
create table t1(id int);
insert into t1(id) values (1);
select 1 from (select 1 from test.t1) a;
use information_schema;
select 1 from (select 1 from test.t1) a;
use test;
drop table t1;

#
# Bug#14476 `information_schema`.`TABLES`.`TABLE_TYPE` with empty value
#
create table t1 (f1 int(11));
create view v1 as select * from t1;
drop table t1;
select table_type from information_schema.tables
where table_name="v1";
drop view v1;

#
# Bug#14387 SHOW COLUMNS doesn't work on temporary tables
# Bug#15224 SHOW INDEX from temporary table doesn't work
# Bug#12770 DESC cannot display the info. about temporary table
#
create temporary table t1(f1 int, index(f1));
show columns from t1;
describe t1;
show indexes from t1;
drop table t1;

#
# Bug#14271 I_S: columns has no size for (var)binary columns
#
create table t1(f1 binary(32), f2 varbinary(64));
select character_maximum_length, character_octet_length
from information_schema.columns where table_name='t1';
drop table t1;

#
# Bug#15533 crash, information_schema, function, view
#
CREATE TABLE t1 (f1 BIGINT, f2 VARCHAR(20), f3 BIGINT);
INSERT INTO t1 SET f1 = 1, f2 = 'Schoenenbourg', f3 = 1;

CREATE FUNCTION func2() RETURNS BIGINT RETURN 1;

delimiter //;
CREATE FUNCTION func1() RETURNS BIGINT
BEGIN
  RETURN ( SELECT COUNT(*) FROM INFORMATION_SCHEMA.VIEWS);
END//
delimiter ;//

CREATE VIEW v1 AS SELECT 1 FROM t1
                    WHERE f3 = (SELECT func2 ());
SELECT func1();
DROP TABLE t1;
DROP VIEW v1;
DROP FUNCTION func1;
DROP FUNCTION func2;


#
# Bug#15307 GROUP_CONCAT() with ORDER BY returns empty set on information_schema
#
select column_type, group_concat(table_schema, '.', table_name), count(*) as num
from information_schema.columns where
table_schema='information_schema' and
(column_type = 'varchar(7)' or column_type = 'varchar(20)')
group by column_type order by num;

#
# Bug#19236 bad COLUMNS.CHARACTER_MAXIMUM_LENGHT and CHARACTER_OCTET_LENGTH
#
create table t1(f1 char(1) not null, f2 char(9) not null)
default character set utf8;
select CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH from
information_schema.columns where table_schema='test' and table_name = 't1';
drop table t1;

#
# Bug#18177 any access to INFORMATION_SCHEMA.ROUTINES crashes
#
use mysql;
INSERT INTO `proc` VALUES ('test','','PROCEDURE','','SQL','CONTAINS_SQL',
'NO','DEFINER','','','BEGIN\r\n  \r\nEND','root@%','2006-03-02 18:40:03',
'2006-03-02 18:40:03','','');
select routine_name from information_schema.routines;
delete from proc where name='';
use test;

#
# Bug#16681 information_schema shows forbidden VIEW details
#
grant select on test.* to mysqltest_1@localhost;
create table t1 (id int);
create view v1 as select * from t1;
create definer = mysqltest_1@localhost
sql security definer view v2 as select 1;

connect (con16681,localhost,mysqltest_1,,test);
connection con16681;

select * from information_schema.views
where table_name='v1' or table_name='v2';
connection default;
disconnect con16681;
drop view v1, v2;
drop table t1;
drop user mysqltest_1@localhost;

#
# Bug#19599 duplication of information_schema column value in a CONCAT expr with user var
#
set @a:= '.';
create table t1(f1 char(5));
create table t2(f1 char(5));
select concat(@a, table_name), @a, table_name
from information_schema.tables where table_schema = 'test';
drop table t1,t2;


#
# Bug#20230 routine_definition is not null
#
--disable_warnings
DROP PROCEDURE IF EXISTS p1;
DROP FUNCTION IF EXISTS f1;
--enable_warnings

CREATE PROCEDURE p1() SET @a= 1;
CREATE FUNCTION f1() RETURNS INT RETURN @a + 1;
CREATE USER mysql_bug20230@localhost;
GRANT EXECUTE ON PROCEDURE p1 TO mysql_bug20230@localhost;
GRANT EXECUTE ON FUNCTION f1 TO mysql_bug20230@localhost;

SELECT ROUTINE_NAME, ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES;
SHOW CREATE PROCEDURE p1;
SHOW CREATE FUNCTION f1;

connect (conn1, localhost, mysql_bug20230,,);

SELECT ROUTINE_NAME, ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES;
SHOW CREATE PROCEDURE p1;
SHOW CREATE FUNCTION f1;
CALL p1();
SELECT f1();

disconnect conn1;
connection default;

DROP FUNCTION f1;
DROP PROCEDURE p1;
DROP USER mysql_bug20230@localhost;

#
# Bug#18925 subqueries with MIN/MAX functions on INFORMARTION_SCHEMA
#

SELECT t.table_name, c1.column_name
  FROM information_schema.tables t
       INNER JOIN
       information_schema.columns c1
       ON t.table_schema = c1.table_schema AND
          t.table_name = c1.table_name
  WHERE t.table_schema = 'information_schema' AND
        c1.ordinal_position =
        ( SELECT COALESCE(MIN(c2.ordinal_position),1)
            FROM information_schema.columns c2
            WHERE c2.table_schema = t.table_schema AND
                  c2.table_name = t.table_name AND
                  c2.column_name LIKE '%SCHEMA%'
        );
SELECT t.table_name, c1.column_name
  FROM information_schema.tables t
       INNER JOIN
       information_schema.columns c1
       ON t.table_schema = c1.table_schema AND
          t.table_name = c1.table_name
  WHERE t.table_schema = 'information_schema' AND
        c1.ordinal_position =
        ( SELECT COALESCE(MIN(c2.ordinal_position),1)
            FROM information_schema.columns c2
            WHERE c2.table_schema = 'information_schema' AND
                  c2.table_name = t.table_name AND
                  c2.column_name LIKE '%SCHEMA%'
        );

#
# Bug#2123 query with a simple non-correlated subquery over
#          INFORMARTION_SCHEMA.TABLES
#

SELECT MAX(table_name) FROM information_schema.tables;
SELECT table_name from information_schema.tables
  WHERE table_name=(SELECT MAX(table_name)
                      FROM information_schema.tables);

#
# Bug#23037 Bug in field "Default" of query "SHOW COLUMNS FROM table"
#
# Note, MyISAM/InnoDB can't take more that 65532 chars, because the row
# size is limited to 65535 bytes (BLOBs not counted)
#
--disable_warnings
DROP TABLE IF EXISTS bug23037;
DROP FUNCTION IF EXISTS get_value;
--enable_warnings
--disable_query_log
DELIMITER |;
CREATE FUNCTION get_value()
  RETURNS TEXT
  DETERMINISTIC
BEGIN
  DECLARE col1, col2, col3, col4, col6 CHAR(255);
  DECLARE default_val VARCHAR(65532);
  DECLARE done INT DEFAULT 0;
  DECLARE cur1 CURSOR FOR SHOW COLUMNS FROM bug23037;
  DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done = 1;
  OPEN cur1;
  FETCH cur1 INTO col1, col2, col3, col4, default_val, col6;
  CLOSE cur1;
  RETURN default_val;
end|
DELIMITER ;|

let $body=`SELECT REPEAT('A', 65532)`;
eval CREATE TABLE bug23037(fld1 VARCHAR(65532) CHARACTER SET latin1 DEFAULT "$body");
--enable_query_log

SELECT COLUMN_NAME, MD5(COLUMN_DEFAULT), LENGTH(COLUMN_DEFAULT) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='bug23037';

SELECT MD5(get_value());

SELECT COLUMN_NAME, MD5(COLUMN_DEFAULT), LENGTH(COLUMN_DEFAULT), COLUMN_DEFAULT=get_value() FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='bug23037';

DROP TABLE bug23037;
DROP FUNCTION get_value;

#
# Bug#22413 EXPLAIN SELECT FROM view with ORDER BY yield server crash
#
create view v1 as
select table_schema as object_schema,
       table_name   as object_name,
       table_type   as object_type
from information_schema.tables
order by object_schema;
explain select * from v1;
explain select * from (select table_name from information_schema.tables) as a;
drop view v1;

#
# Bug#23299 Some queries against INFORMATION_SCHEMA with subqueries fail
#
create table t1 (f1 int(11));
create table t2 (f1 int(11), f2 int(11));

select table_name from information_schema.tables
where table_schema = 'test' and table_name not in
(select table_name from information_schema.columns
 where table_schema = 'test' and column_name = 'f3');
drop table t1,t2;


#
# Bug#24630 Subselect query crashes mysqld
#
select 1 as f1 from information_schema.tables  where "CHARACTER_SETS"=
(select cast(table_name as char)  from information_schema.tables
 order by table_name limit 1) limit 1;

select t.table_name, group_concat(t.table_schema, '.', t.table_name),
       count(*) as num1
from information_schema.tables t
inner join information_schema.columns c1
on t.table_schema = c1.table_schema AND t.table_name = c1.table_name
where t.table_schema = 'information_schema' and
        c1.ordinal_position =
        (select isnull(c2.column_type) -
         isnull(group_concat(c2.table_schema, '.', c2.table_name)) +
         count(*) as num
         from information_schema.columns c2 where
         c2.table_schema='information_schema' and
         (c2.column_type = 'varchar(7)' or c2.column_type = 'varchar(20)')
          group by c2.column_type order by num limit 1)
group by t.table_name order by num1, t.table_name;


#
# Bug#28266 IS_UPDATABLE field on VIEWS table in I_S database is wrong
#
create table t1(f1 int);
create view v1 as select f1+1 as a from t1;
create table t2 (f1 int, f2 int);
create view v2 as select f1+1 as a, f2 as b from t2;
select table_name, is_updatable from information_schema.views;
#
# Note: we can perform 'delete' for non updatable view.
#
delete from v1;
drop view v1,v2;
drop table t1,t2;

#
# Bug#25859 ALTER DATABASE works w/o parameters
#
--error ER_PARSE_ERROR
alter database;
--error ER_PARSE_ERROR
alter database test;

#
# Bug#27629 Possible security flaw in INFORMATION_SCHEMA and SHOW statements
#

create database mysqltest;
create table mysqltest.t1(a int, b int, c int);
create trigger mysqltest.t1_ai after insert on mysqltest.t1
  for each row set @a = new.a + new.b + new.c;
grant select(b) on mysqltest.t1 to mysqltest_1@localhost;

select trigger_name from information_schema.triggers
where event_object_table='t1';
show triggers from mysqltest;

connect (con27629,localhost,mysqltest_1,,mysqltest);
show columns from t1;
select column_name from information_schema.columns where table_name='t1';

show triggers;
select trigger_name from information_schema.triggers
where event_object_table='t1';
connection default;
disconnect con27629;
drop user mysqltest_1@localhost;
drop database mysqltest;

#
# Bug#27747 database metadata doesn't return sufficient column default info
#
create table t1 (
  f1 varchar(50),
  f2 varchar(50) not null,
  f3 varchar(50) default '',
  f4 varchar(50) default NULL,
  f5 bigint not null,
  f6 bigint not null default 10,
  f7 datetime not null,
  f8 datetime default '2006-01-01'
);
select column_default from information_schema.columns where table_name= 't1';
show columns from t1;
drop table t1;

#
# Bug#31633 Information schema = NULL queries crash the server
#
select * from information_schema.columns where table_schema = NULL;
select * from `information_schema`.`COLUMNS` where `TABLE_NAME` = NULL;
select * from `information_schema`.`KEY_COLUMN_USAGE` where `TABLE_SCHEMA` = NULL;
select * from `information_schema`.`KEY_COLUMN_USAGE` where `TABLE_NAME` = NULL;
select * from information_schema.schemata where schema_name = NULL;
select * from `information_schema`.`STATISTICS` where `TABLE_SCHEMA` = NULL;
select * from `information_schema`.`STATISTICS` where `TABLE_NAME` = NULL;
select * from information_schema.tables where table_schema = NULL;
select * from information_schema.tables where table_catalog = NULL;
select * from information_schema.tables where table_name = NULL;
select * from `information_schema`.`TABLE_CONSTRAINTS` where `TABLE_SCHEMA` = NULL;
select * from `information_schema`.`TABLE_CONSTRAINTS` where `TABLE_NAME` = NULL;
select * from `information_schema`.`TRIGGERS` where `EVENT_OBJECT_SCHEMA` = NULL;
select * from `information_schema`.`TRIGGERS` where `EVENT_OBJECT_TABLE` = NULL;
select * from `information_schema`.`VIEWS` where `TABLE_SCHEMA` = NULL;
select * from `information_schema`.`VIEWS` where `TABLE_NAME` = NULL;

#
# Bug#30079 A check for "hidden" I_S tables is flawed
#
--error ER_UNKNOWN_TABLE
show fields from information_schema.table_names;
--error ER_UNKNOWN_TABLE
show keys from information_schema.table_names;

#
# Bug#34529 Crash on complex Falcon I_S select after ALTER .. PARTITION BY
#
USE information_schema;
SET max_heap_table_size = 16384;

CREATE TABLE test.t1( a INT );

# What we need to create here is a bit of a corner case:
# We need a star query with information_schema tables, where the first
# branch of the star join produces zero rows, so that reading of the
# second branch never happens. At the same time we have to make sure
# that data for at least the last table is swapped from MEMORY/HEAP to
# MyISAM. This and only this triggers the bug.
SELECT *
FROM tables ta
JOIN collations co ON ( co.collation_name = ta.table_catalog )
JOIN character_sets cs ON ( cs.character_set_name = ta.table_catalog );

DROP TABLE test.t1;
SET max_heap_table_size = DEFAULT;
USE test;

--echo End of 5.0 tests.