mariadb/mysql-test/main/information_schema.test
Sergei Golubchik 4e503aec7f MDEV-24593 Signal 11 when group by primary key of table joined to information_schema.columns
I_S tables were materialized too late, an attempt to use table
statistics before the table was created caused a crash.

Let's move table creation up. it only needs read_set to
be calculated properly, this happens in JOIN::optimize_inner(),
after semijoin transformation.

Note that tables are not populated at that point, so most of the
statistics would make no sense anyway. But at least field sizes
will be correct. And it won't crash.
2021-01-22 00:04:31 +01:00

2022 lines
61 KiB
Text

# This test uses grants, which can't get tested for embedded server
-- source include/not_embedded.inc
#Don't run this test when thread_pool active
--source include/not_threadpool.inc
# check that CSV engine was compiled in, as the result of the test depends
# on the presence of the log tables (which are CSV-based).
--source include/have_csv.inc
# Without aria_used_for_temp_tables some I_S tables will be MyISAM,
# while the test expects them to be Aria
-- source include/have_aria_used_for_temp_tables.inc
-- source include/have_innodb.inc
# Save the initial number of concurrent sessions
--source include/count_sessions.inc
--source include/default_optimizer_switch.inc
--source include/default_charset.inc
--source include/maybe_debug.inc
set global sql_mode="";
set local sql_mode="";
# 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;
--sorted_result
select * from information_schema.SCHEMATA where schema_name > 'm';
--sorted_result
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
WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test', 'mysqltest') AND
table_name not like 'innodb_%' AND
table_name not like 'xtradb_%';
--sorted_result
select * from v1;
--sorted_result
select c,table_name from v1
inner join information_schema.TABLES v2 on (v1.c=v2.table_name)
where v1.c like "t%";
--sorted_result
select c,table_name from v1
left join information_schema.TABLES v2 on (v1.c=v2.table_name)
where v1.c like "t%";
--sorted_result
select c, v2.table_name from v1
right join information_schema.TABLES v2 on (v1.c=v2.table_name)
where v1.c like "t%";
--sorted_result
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 # 19 #
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';
--error ER_VIEW_NO_EXPLAIN
explain select * from 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 where routine_schema='test';
--replace_column 5 # 6 #
show procedure status where db='test';
--replace_column 5 # 6 #
show function status where db='test';
select a.ROUTINE_NAME from information_schema.ROUTINES a,
information_schema.SCHEMATA b where
a.ROUTINE_SCHEMA = b.SCHEMA_NAME AND b.SCHEMA_NAME='test';
--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) AND a.ROUTINE_SCHEMA='test' order by 1;
select count(*) from information_schema.ROUTINES where routine_schema='test';
create view v1 as select routine_schema, routine_name from information_schema.routines where routine_schema='test'
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;
--sorted_result
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;
--sorted_result
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;
--sorted_result
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);
--sorted_result
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;
--sorted_result
show tables from information_schema like "T%";
--error ER_DBACCESS_DENIED_ERROR
create database information_schema;
use information_schema;
--sorted_result
show full tables like "T%";
--error ER_DBACCESS_DENIED_ERROR
create table t1(a int);
use test;
show tables;
use information_schema;
--sorted_result
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;
--sorted_result
select table_name from information_schema.views
where table_schema='test';
--sorted_result
select table_name from information_schema.views
where table_schema='test';
select column_name from information_schema.columns
where table_schema='test' and table_name='t4';
select column_name from information_schema.columns
where table_schema='test' and table_name='v2';
select column_name from information_schema.columns
where table_schema='test' and table_name='v3';
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
#
use test;
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 WHERE TABLE_SCHEMA='test';
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' and table_schema != 'performance_schema'
order by binary table_name, ordinal_position;
select table_name, column_name, data_type from information_schema.columns
where data_type = 'datetime' and table_name not like 'innodb_%'
order by binary table_name, ordinal_position;
#
# 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;
--sorted_result
SELECT TABLE_NAME, COLUMN_NAME, PRIVILEGES FROM INFORMATION_SCHEMA.COLUMNS
where COLUMN_NAME='TABLE_NAME' and table_name not like 'innodb%';
connection default;
disconnect user10261;
delete from mysql.user where user='mysqltest_4';
delete from mysql.db where user='mysqltest_4';
flush privileges;
#
# 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 ;|
--replace_column 6 #
show triggers;
--replace_column 17 #
select * from information_schema.triggers where trigger_schema in ('mysql', 'information_schema', 'test', 'mysqltest');
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 # 19 #
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_DBACCESS_DENIED_ERROR
CREATE PROCEDURE p1 ()
BEGIN
SELECT 'foo' FROM DUAL;
END |
delimiter ;|
select ROUTINE_NAME from routines where ROUTINE_SCHEMA='information_schema';
#
# 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)'
or column_type = 'varchar(27)')
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','','','utf8','utf8_general_ci','utf8_general_ci','n/a', 'NONE');
select routine_name from information_schema.routines where ROUTINE_SCHEMA='test';
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' order by table_name;
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' order by table_name;
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 WHERE ROUTINE_SCHEMA='test';
SHOW CREATE PROCEDURE p1;
SHOW CREATE FUNCTION f1;
connect (conn1, localhost, mysql_bug20230,,);
SELECT ROUTINE_NAME, ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_SCHEMA='test';
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#21231 query with a simple non-correlated subquery over
# INFORMARTION_SCHEMA.TABLES
#
SELECT MAX(table_name) FROM information_schema.tables WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test') and table_name not like 'xtradb%';
SELECT table_name from information_schema.tables
WHERE table_name=(SELECT MAX(table_name)
FROM information_schema.tables WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test') and table_name not like 'xtradb%');
#
# 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 SELECT COLUMN_NAME, COLUMN_TYPE, IS_NULLABLE, COLUMN_KEY, COLUMN_DEFAULT, EXTRA FROM INFORMATION_SCHEMA.COLUMNS where TABLE_NAME='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
#
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
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;
set optimizer_switch=@tmp_optimizer_switch;
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')
order by table_name;
drop table t1,t2;
#
# 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 order by table_name;
#
# 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';
--replace_column 6 #
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';
--replace_column 6 #
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#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.
#
# Show engines
#
select * from information_schema.engines WHERE ENGINE="MyISAM";
#
# INFORMATION_SCHEMA.PROCESSLIST
#
grant select on *.* to user3148@localhost;
connect (con3148,localhost,user3148,,test);
connection con3148;
select user,db from information_schema.processlist;
connection default;
disconnect con3148;
drop user user3148@localhost;
#
# `time` and `time_ms` columns of INFORMATION_SCHEMA.PROCESSLIST.
#
connect (pslistcon,localhost,root,,test);
let $ID= `select connection_id()`;
SELECT 'other connection here' AS who;
connection default;
sleep 2;
--disable_query_log
eval SET @tid=$ID;
--enable_query_log
SELECT IF(`time` > 0, 'OK', `time`) AS time_low,
IF(`time` < 1000, 'OK', `time`) AS time_high,
IF(time_ms >= 1000, 'OK', time_ms) AS time_ms_low,
IF(time_ms < 1000000, 'OK', time_ms) AS time_ms_high
FROM INFORMATION_SCHEMA.PROCESSLIST
WHERE ID=@tid;
disconnect pslistcon;
#
# Bug#26174 Server Crash: INSERT ... SELECT ... FROM I_S.GLOBAL_STATUS
# in Event (see also openssl_1.test)
#
--disable_warnings
DROP TABLE IF EXISTS server_status;
DROP EVENT IF EXISTS event_status;
--enable_warnings
SET GLOBAL event_scheduler=1;
DELIMITER $$;
CREATE EVENT event_status
ON SCHEDULE AT NOW()
ON COMPLETION NOT PRESERVE
DO
BEGIN
CREATE TABLE server_status
SELECT variable_name
FROM information_schema.global_status
WHERE variable_name LIKE 'ABORTED_CONNECTS' OR
variable_name LIKE 'BINLOG_CACHE_DISK_USE';
END$$
DELIMITER ;$$
let $wait_timeout= 300;
let $wait_condition=select count(*) = 0 from information_schema.events where event_name='event_status';
--source include/wait_condition.inc
SELECT variable_name FROM server_status;
DROP TABLE server_status;
SET GLOBAL event_scheduler=0;
#
# WL#3732 Information schema optimization
#
explain select table_name from information_schema.views where
table_schema='test' and table_name='v1';
explain select * from information_schema.tables;
explain select * from information_schema.collations;
explain select * from information_schema.tables where
table_schema='test' and table_name= 't1';
explain select table_name, table_type from information_schema.tables
where table_schema='test';
explain select b.table_name
from information_schema.tables a, information_schema.columns b
where a.table_name='t1' and a.table_schema='test' and b.table_name=a.table_name;
#
# Bug#30310 wrong result on SELECT * FROM INFORMATION_SCHEMA.SCHEMATA WHERE ..
#
SELECT * FROM INFORMATION_SCHEMA.SCHEMATA
WHERE SCHEMA_NAME = 'mysqltest';
SELECT * FROM INFORMATION_SCHEMA.SCHEMATA
WHERE SCHEMA_NAME = '';
SELECT * FROM INFORMATION_SCHEMA.SCHEMATA
WHERE SCHEMA_NAME = 'test';
select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='mysql' AND TABLE_NAME='nonexisting';
select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='mysql' AND TABLE_NAME='';
select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='' AND TABLE_NAME='';
select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='' AND TABLE_NAME='nonexisting';
#
# Bug#30689 Wrong content in I_S.VIEWS.VIEW_DEFINITION if VIEW is based on I_S
#
CREATE VIEW v1
AS SELECT *
FROM information_schema.tables;
SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS where TABLE_NAME = 'v1';
DROP VIEW v1;
#
# Bug#30795 Query on INFORMATION_SCHEMA.SCHEMATA, wrong result
#
SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA
WHERE SCHEMA_NAME ='information_schema';
#
# Bug#31381 Error in retrieving Data from INFORMATION_SCHEMA
#
SELECT TABLE_COLLATION FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA='mysql' and TABLE_NAME= 'db';
#
# 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`.`PARTITIONS` where `TABLE_SCHEMA` = NULL;
select * from `information_schema`.`PARTITIONS` where `TABLE_NAME` = NULL;
select * from `information_schema`.`REFERENTIAL_CONSTRAINTS` where `CONSTRAINT_SCHEMA` = NULL;
select * from `information_schema`.`REFERENTIAL_CONSTRAINTS` 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#31630 debug assert with explain extended select ... from i_s
#
explain extended select 1 from information_schema.tables;
#
# Bug#32775 problems with SHOW EVENTS and Information_Schema
#
use information_schema;
show events;
show events from information_schema;
show events where Db= 'information_schema';
use test;
--echo #
--echo # Bug#34166 Server crash in SHOW OPEN TABLES and prelocking
--echo #
--disable_warnings
drop table if exists t1;
drop function if exists f1;
--enable_warnings
create table t1 (a int);
delimiter |;
create function f1() returns int
begin
insert into t1 (a) values (1);
return 0;
end|
delimiter ;|
--disable_result_log
show open tables where f1()=0;
show open tables where f1()=0;
--enable_result_log
drop table t1;
drop function f1;
#
# Bug#34656 KILL a query = Assertion failed: m_status == DA_ERROR ||
# m_status == DA_OK
#
connect (conn1, localhost, root,,);
connection conn1;
let $ID= `select connection_id()`;
send select * from information_schema.tables where 1=sleep(100000);
connection default;
let $wait_timeout= 10;
let $wait_condition=select count(*)=1 from information_schema.processlist
where state='User sleep' and
info='select * from information_schema.tables where 1=sleep(100000)';
--source include/wait_condition.inc
disable_query_log;
eval kill $ID;
enable_query_log;
let $wait_timeout= 10;
let $wait_condition=select count(*)=0 from information_schema.processlist
where state='User sleep' and
info='select * from information_schema.tables where 1=sleep(100000)';
--source include/wait_condition.inc
connection conn1;
--error 2013,ER_CONNECTION_KILLED
reap;
connection default;
disconnect conn1;
connect (conn1, localhost, root,,);
connection conn1;
let $ID= `select connection_id()`;
send select * from information_schema.columns where 1=sleep(100000);
connection default;
let $wait_timeout= 10;
let $wait_condition=select count(*)=1 from information_schema.processlist
where state='User sleep' and
info='select * from information_schema.columns where 1=sleep(100000)';
--source include/wait_condition.inc
disable_query_log;
eval kill $ID;
enable_query_log;
let $wait_timeout= 10;
let $wait_condition=select count(*)=0 from information_schema.processlist
where state='User sleep' and
info='select * from information_schema.columns where 1=sleep(100000)';
--source include/wait_condition.inc
connection conn1;
--error 2013,ER_CONNECTION_KILLED
reap;
connection default;
disconnect conn1;
#
# Bug#38918 selecting from information_schema.columns is disproportionately slow
#
explain select count(*) from information_schema.tables;
explain select count(*) from information_schema.columns;
explain select count(*) from information_schema.views;
#
# Bug#39955 SELECT on INFORMATION_SCHEMA.GLOBAL_VARIABLES takes too long
#
set global init_connect="drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;\
drop table if exists t1;drop table if exists t1;";
select * from information_schema.global_variables where variable_name='init_connect';
--replace_regex /at row [123]/at row #/
select * from information_schema.global_variables where variable_name like 'init%' order by variable_name;
set global init_connect="";
#
# Bug#34517 SHOW GLOBAL STATUS does not work properly in embedded server.
#
create table t0 select * from information_schema.global_status where VARIABLE_NAME='COM_SELECT';
SELECT 1;
select a.VARIABLE_VALUE - b.VARIABLE_VALUE from t0 b, information_schema.global_status a
where a.VARIABLE_NAME = b.VARIABLE_NAME;
drop table t0;
#
# Bug#35275 INFORMATION_SCHEMA.TABLES.CREATE_OPTIONS omits KEY_BLOCK_SIZE
#
CREATE TABLE t1(a INT) KEY_BLOCK_SIZE=1;
SELECT CREATE_OPTIONS FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1';
DROP TABLE t1;
#
# Bug #22047: Time in SHOW PROCESSLIST for SQL thread in replication seems
# to become negative
#
# Note that at the time of writing, MariaDB differs in behaviour from MySQL on
# the `time` column. In MySQL this changes depending on the setting of
# @TIMESTAMP, which is contrary to the documented (and sensible) behaviour.
# In MariaDB, the `time` column is independent of @TIMESTAMP.
# (The rationale for this is to keep `time` and `time_ms` consistent;
# @TIMESTAMP has no microsecond precision).
#
SET TIMESTAMP=@@TIMESTAMP + 10000000;
SELECT 'NOT_OK' AS TEST_RESULT FROM INFORMATION_SCHEMA.PROCESSLIST WHERE time < 0;
SET TIMESTAMP=DEFAULT;
--echo #
--echo # Bug #50276: Security flaw in INFORMATION_SCHEMA.TABLES
--echo #
CREATE DATABASE db1;
USE db1;
CREATE TABLE t1 (id INT);
CREATE USER nonpriv;
USE test;
connect (nonpriv_con, localhost, nonpriv,,);
connection nonpriv_con;
--echo # connected as nonpriv
--echo # Should return 0
SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1';
USE INFORMATION_SCHEMA;
--echo # Should return 0
SELECT COUNT(*) FROM TABLES WHERE TABLE_NAME='t1';
connection default;
--echo # connected as root
disconnect nonpriv_con;
DROP USER nonpriv;
DROP TABLE db1.t1;
DROP DATABASE db1;
--echo
--echo Bug#54422 query with = 'variables'
--echo
CREATE TABLE variables(f1 INT);
SELECT COLUMN_DEFAULT, TABLE_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE INFORMATION_SCHEMA.COLUMNS.TABLE_NAME = 'variables';
DROP TABLE variables;
--echo #
--echo # Bug #53814: NUMERIC_PRECISION for unsigned bigint field is 19,
--echo # should be 20
--echo #
CREATE TABLE ubig (a BIGINT, b BIGINT UNSIGNED);
SELECT TABLE_NAME, COLUMN_NAME, NUMERIC_PRECISION
FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='ubig';
INSERT INTO ubig VALUES (0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFF);
SELECT length(CAST(b AS CHAR)) FROM ubig;
DROP TABLE ubig;
#
# Bug #13889741: HANDLE_FATAL_SIGNAL IN _DB_ENTER_ | HANDLE_FATAL_SIGNAL IN STRNLEN
#
select 1 from information_schema.tables where table_schema=repeat('a', 2000);
grant usage on *.* to mysqltest_1@localhost;
connect (con1, localhost, mysqltest_1,,);
connection con1;
select 1 from information_schema.tables where table_schema=repeat('a', 2000);
connection default;
disconnect con1;
drop user mysqltest_1@localhost;
--echo End of 5.1 tests.
--echo #
--echo # Additional test for WL#3726 "DDL locking for all metadata objects"
--echo # To avoid possible deadlocks process of filling of I_S tables should
--echo # use high-priority metadata lock requests when opening tables.
--echo # Below we just test that we really use high-priority lock request
--echo # since reproducing a deadlock will require much more complex test.
--echo #
--disable_warnings
drop tables if exists t1, t2, t3;
--enable_warnings
create table t1 (i int);
create table t2 (j int primary key auto_increment);
connect (con3726_1,localhost,root,,test);
connection con3726_1;
lock table t2 read;
connect (con3726_2,localhost,root,,test);
connection con3726_2;
--echo # RENAME below will be blocked by 'lock table t2 read' above but
--echo # will add two pending requests for exclusive metadata locks.
--send rename table t2 to t3
connection default;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info like "rename table t2 to t3";
--source include/wait_condition.inc
--echo # These statements should not be blocked by pending lock requests
select table_name, column_name, data_type from information_schema.columns
where table_schema = 'test' and table_name in ('t1', 't2') order by table_name, column_name;
select table_name, auto_increment from information_schema.tables
where table_schema = 'test' and table_name in ('t1', 't2') order by table_name;
connection con3726_1;
unlock tables;
connection con3726_2;
--reap
connection default;
disconnect con3726_1;
disconnect con3726_2;
drop tables t1, t3;
#
# Bug#39270 I_S optimization algorithm does not work properly in some cases
#
EXPLAIN SELECT * FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE;
EXPLAIN SELECT * FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
EXPLAIN SELECT * FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS
WHERE CONSTRAINT_SCHEMA='test';
EXPLAIN SELECT * FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
WHERE TABLE_NAME='t1' and TABLE_SCHEMA='test';
EXPLAIN SELECT * FROM INFORMATION_SCHEMA.TRIGGERS
WHERE EVENT_OBJECT_SCHEMA='test';
#
# Bug#24062 Incorrect error msg after execute DROP TABLE IF EXISTS on information_schema
#
--error ER_DBACCESS_DENIED_ERROR
create table information_schema.t1 (f1 INT);
--error ER_DBACCESS_DENIED_ERROR
drop table information_schema.t1;
--error ER_DBACCESS_DENIED_ERROR
drop temporary table if exists information_schema.t1;
--error ER_DBACCESS_DENIED_ERROR
create temporary table information_schema.t1 (f1 INT);
--error ER_DBACCESS_DENIED_ERROR
drop view information_schema.v1;
--error ER_DBACCESS_DENIED_ERROR
create view information_schema.v1;
--error ER_DBACCESS_DENIED_ERROR
create trigger mysql.trg1 after insert on information_schema.t1 for each row set @a=1;
--error 1109
create table t1 select * from information_schema.t1;
CREATE TABLE t1(f1 char(100));
--error ER_DBACCESS_DENIED_ERROR
REPAIR TABLE t1, information_schema.tables;
CHECKSUM TABLE t1, information_schema.tables;
--error ER_DBACCESS_DENIED_ERROR
ANALYZE TABLE t1, information_schema.tables;
CHECK TABLE t1, information_schema.tables;
--error ER_DBACCESS_DENIED_ERROR
OPTIMIZE TABLE t1, information_schema.tables;
--error ER_DBACCESS_DENIED_ERROR
RENAME TABLE v1 to v2, information_schema.tables to t2;
--error ER_DBACCESS_DENIED_ERROR
DROP TABLE t1, information_schema.tables;
--error ER_DBACCESS_DENIED_ERROR
LOCK TABLES t1 READ, information_schema.tables READ;
DROP TABLE t1;
#
# Bug #43834 Assertion in Natural_join_column::db_name() on an I_S query
#
SELECT *
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
LEFT JOIN INFORMATION_SCHEMA.COLUMNS
USING (TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME)
WHERE COLUMNS.TABLE_SCHEMA = 'test'
AND COLUMNS.TABLE_NAME = 't1';
--echo #
--echo # A test case for Bug#56540 "Exception (crash) in sql_show.cc
--echo # during rqg_info_schema test on Windows"
--echo # Ensure that we never access memory of a closed table,
--echo # in particular, never access table->field[] array.
--echo # Before the fix, the below test case, produced
--echo # valgrind errors.
--echo #
--disable_warnings
drop table if exists t1;
drop view if exists v1;
--enable_warnings
create table t1 (a int, b int);
create view v1 as select t1.a, t1.b from t1;
alter table t1 change b c int;
lock table t1 read;
connect(con1, localhost, root,,);
connection con1;
send flush tables;
connection default;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table flush" and
info = "flush tables";
--source include/wait_condition.inc
--vertical_results
select * from information_schema.views;
--horizontal_results
unlock tables;
--echo #
--echo # Cleanup.
--echo #
connection con1;
--echo # Reaping 'flush tables'
reap;
disconnect con1;
--source include/wait_until_disconnected.inc
connection default;
drop table t1;
drop view v1;
--echo #
--echo # Test for bug #12828477 - "MDL SUBSYSTEM CREATES BIG OVERHEAD FOR
--echo # CERTAIN QUERIES TO INFORMATION_SCHEMA".
--echo #
--echo # Check that metadata locks which are acquired during the process
--echo # of opening tables/.FRMs/.TRG files while filling I_S table are
--echo # not kept to the end of statement. Keeping the locks has caused
--echo # performance problems in cases when big number of tables (.FRMs
--echo # or .TRG files) were scanned as cost of new lock acquisition has
--echo # increased linearly.
--disable_warnings
drop database if exists mysqltest;
--enable_warnings
create database mysqltest;
use mysqltest;
create table t0 (i int);
create table t1 (j int);
create table t2 (k int);
--echo #
--echo # Test that we don't keep locks in case when we to fill
--echo # I_S table we perform full-blown table open.
--echo #
--echo # Acquire lock on 't2' so upcoming RENAME is
--echo # blocked.
lock tables t2 read;
connect (con12828477_1, localhost, root,,mysqltest);
--echo # The below RENAME should wait on 't2' while
--echo # keeping X lock on 't1'.
--send rename table t1 to t3, t2 to t1, t3 to t2
connect (con12828477_2, localhost, root,,mysqltest);
--echo # Wait while the above RENAME is blocked.
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "rename table t1 to t3, t2 to t1, t3 to t2";
--source include/wait_condition.inc
--echo # Issue query to I_S which will open 't0' and get
--echo # blocked on 't1' because of RENAME.
--send select table_name, auto_increment from information_schema.tables where table_schema='mysqltest' and table_name='t0' union select table_name, auto_increment from information_schema.tables where table_schema='mysqltest' and table_name<>'t0' order by table_name
connect (con12828477_3, localhost, root,,mysqltest);
--echo # Wait while the above SELECT is blocked.
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info like '%t0%union%t0%';
--source include/wait_condition.inc
--echo #
--echo # Check that it holds no lock on 't0' so it can be renamed.
rename table t0 to t4;
connection default;
--echo #
--echo # Unblock the first RENAME.
unlock tables;
connection con12828477_1;
--echo # Reap the first RENAME
--reap
connection con12828477_2;
--echo # Reap SELECT to I_S.
--reap
connection default;
--echo #
--echo # Now test that we don't keep locks in case when we to fill
--echo # I_S table we read .FRM or .TRG file only (this was the case
--echo # for which problem existed).
--echo #
rename table t4 to t0;
--echo # Acquire lock on 't2' so upcoming RENAME is
--echo # blocked.
lock tables t2 read;
connection con12828477_1;
--echo # The below RENAME should wait on 't2' while
--echo # keeping X lock on 't1'.
--send rename table t1 to t3, t2 to t1, t3 to t2
connection con12828477_2;
--echo # Wait while the above RENAME is blocked.
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "rename table t1 to t3, t2 to t1, t3 to t2";
--source include/wait_condition.inc
--echo # Issue query to I_S which will open 't0' and get
--echo # blocked on 't1' because of RENAME.
--send select event_object_table, trigger_name from information_schema.triggers where event_object_schema='mysqltest'
connection con12828477_3;
--echo # Wait while the above SELECT is blocked.
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "select event_object_table, trigger_name from information_schema.triggers where event_object_schema='mysqltest'";
--source include/wait_condition.inc
--echo #
--echo # Check that it holds no lock on 't0' so it can be renamed.
rename table t0 to t4;
connection default;
--echo #
--echo # Unblock the first RENAME.
unlock tables;
connection con12828477_1;
--echo # Reap the first RENAME
--reap
connection con12828477_2;
--echo # Reap SELECT to I_S.
--reap
connection default;
disconnect con12828477_1;
disconnect con12828477_2;
disconnect con12828477_3;
--echo #
--echo # MDEV-3818: Query against view over IS tables worse than equivalent query without view
--echo #
create view v1 as select table_schema, table_name, column_name from information_schema.columns;
explain extended
select column_name from v1
where (table_schema = "osm") and (table_name = "test");
explain extended
select information_schema.columns.column_name as column_name
from information_schema.columns
where (information_schema.columns.table_schema = 'osm') and (information_schema.columns.table_name = 'test');
drop view v1;
--echo #
--echo # Clean-up.
drop database mysqltest;
--echo #
--echo # Test for bug #16869534 - "QUERYING SUBSET OF COLUMNS DOESN'T USE TABLE
--echo # CACHE; OPENED_TABLES INCREASES"
--echo #
--disable_result_log
SELECT * FROM INFORMATION_SCHEMA.TABLES;
--enable_result_log
SELECT VARIABLE_VALUE INTO @val1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE
VARIABLE_NAME LIKE 'Opened_tables';
--disable_result_log
SELECT ENGINE FROM INFORMATION_SCHEMA.TABLES;
--enable_result_log
--echo # The below SELECT query should give same output as above SELECT query.
SELECT VARIABLE_VALUE INTO @val2 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE
VARIABLE_NAME LIKE 'Opened_tables';
--echo # The below select should return '1'
SELECT @val1 = @val2;
--echo #
--echo # End of 5.5 tests
--echo #
--echo #
--echo # MDEV-5723: mysqldump -uroot unusable for multi-database operations, checks all databases
--echo #
--disable_warnings
drop database if exists db1;
--enable_warnings
connect (con1,localhost,root,,);
connection con1;
create database db1;
use db1;
create table t1 (a int);
create table t2 (a int);
create table t3 (a int);
create database mysqltest;
use mysqltest;
create table t1 (a int);
create table t2 (a int);
create table t3 (a int);
flush tables;
flush status;
SELECT
LOGFILE_GROUP_NAME, FILE_NAME, TOTAL_EXTENTS, INITIAL_SIZE, ENGINE, EXTRA
FROM
INFORMATION_SCHEMA.FILES
WHERE
FILE_TYPE = 'UNDO LOG' AND FILE_NAME IS NOT NULL AND
LOGFILE_GROUP_NAME IN (SELECT DISTINCT LOGFILE_GROUP_NAME
FROM INFORMATION_SCHEMA.FILES
WHERE
FILE_TYPE = 'DATAFILE' AND
TABLESPACE_NAME IN (SELECT DISTINCT TABLESPACE_NAME
FROM INFORMATION_SCHEMA.PARTITIONS
WHERE TABLE_SCHEMA IN ('db1')
)
)
GROUP BY
LOGFILE_GROUP_NAME, FILE_NAME, ENGINE
ORDER BY
LOGFILE_GROUP_NAME;
--echo # This must have Opened_tables=3, not 6.
show status like 'Opened_tables';
drop database mysqltest;
drop database db1;
connection default;
disconnect con1;
# Wait till all disconnects are completed
--source include/wait_until_count_sessions.inc
set global sql_mode=default;
USE test;
--echo #
--echo # End of 10.0 tests
--echo #
--echo #
--echo # Start of 10.1 tests
--echo #
--echo #
--echo # MDEV-13242 Wrong results for queries with row constructors and information_schema
--echo #
CREATE TABLE tt1(c1 INT);
CREATE TABLE tt2(c2 INT);
SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name, column_name) IN (('tt1', 'c1'));
SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name, column_name) IN (('tt2', 'c2'));
SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name, column_name) IN (('tt1','c1'),('tt2', 'c2'));
SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name, column_name) IN (SELECT 'tt1','c1' FROM dual UNION SELECT 'tt2', 'c2' FROM dual);
SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name='tt1' AND column_name='c1') OR (table_name='tt2' AND column_name='c2');
SELECT column_name FROM information_schema.columns WHERE (table_name, column_name) IN (('tt1','c1'),('tt2', 'c2')) ORDER BY column_name;
DROP TABLE tt1, tt2;
--echo #
--echo # MDEV-13242 Wrong results for queries with row constructors and information_schema
--echo #
SELECT SCHEMA_NAME from information_schema.schemata where schema_name='aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
SELECT SCHEMA_NAME from information_schema.schemata where schema_name=REPEAT('a',193);
--echo #
--echo # End of 10.1 tests
--echo #
--echo #
--echo # MDEV-14836: Assertion `m_status == DA_ERROR' failed in
--echo # Diagnostics_area::sql_errno upon query from I_S with LIMIT ROWS EXAMINED
--echo #
replace_regex /at least \d+ rows/at least ### rows/;
SELECT * FROM INFORMATION_SCHEMA.`COLUMNS` LIMIT ROWS EXAMINED 10;
--echo #
--echo # End of 10.2 Test
--echo #
--echo #
--echo # MDEV-21201:No records produced in information_schema query,
--echo # depending on projection
--echo #
create table t (i int, constraint a check (i > 0));
--disable_warnings
--sorted_result
select
tc.TABLE_SCHEMA,
tc.TABLE_NAME,
cc.CONSTRAINT_NAME,
cc.CHECK_CLAUSE
from information_schema.TABLE_CONSTRAINTS tc
join information_schema.CHECK_CONSTRAINTS cc
using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
;
--sorted_result
select
tc.TABLE_SCHEMA,
tc.TABLE_NAME,
cc.CONSTRAINT_NAME,
cc.CHECK_CLAUSE
from information_schema.CHECK_CONSTRAINTS cc
join information_schema.TABLE_CONSTRAINTS tc
using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
;
--sorted_result
select
tc.TABLE_SCHEMA,
tc.TABLE_NAME,
cc.CONSTRAINT_NAME,
cc.CHECK_CLAUSE
from information_schema.TABLE_CONSTRAINTS tc
NATURAL join information_schema.CHECK_CONSTRAINTS cc
;
--sorted_result
select
tc.TABLE_SCHEMA,
tc.TABLE_NAME,
cc.CONSTRAINT_NAME,
cc.CHECK_CLAUSE
from information_schema.CHECK_CONSTRAINTS cc
NATURAL join information_schema.TABLE_CONSTRAINTS tc
;
--sorted_result
select
tc.TABLE_SCHEMA,
tc.TABLE_NAME,
cc.CONSTRAINT_NAME,
cc.CHECK_CLAUSE,
tc.CONSTRAINT_CATALOG,
tc.CONSTRAINT_SCHEMA
from information_schema.TABLE_CONSTRAINTS tc
join information_schema.CHECK_CONSTRAINTS cc
using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
;
--enable_warnings
drop table t;
--echo #
--echo # MDEV-24230 subquery on information_schema fails with error message
--echo #
create table t1 (n int);
create table t2 (n int);
insert into t1 set n = (select table_rows from information_schema.tables where table_name='t2');
drop table t1, t2;
--echo #
--echo # MDEV-24593 Signal 11 when group by primary key of table joined to information_schema.columns
--echo #
create table t1 (f varchar(64) primary key);
select f from information_schema.columns i
inner join t1 on f=i.column_name
group by f;
drop table t1;
--echo #
--echo # End of 10.3 tests
--echo #