~drizzle-trunk/drizzle/development

DROP TABLE IF EXISTS t0,t1,t2,t3,t4,t5;
select count(*) from data_dictionary.schemas where schema_name > 'm';
count(*)
#
select schema_name from data_dictionary.schemas;
schema_name
information_schema
mysql
test
show databases like 't%';
Database (t%)
test
show databases;
Database
information_schema
mysql
test
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);
select table_name from data_dictionary.tables
where table_schema = "mysqltest" and table_name like "t%";
table_name
t1
t4
select * from information_schema.old_STATISTICS where TABLE_SCHEMA = "mysqltest";
TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	NON_UNIQUE	INDEX_SCHEMA	INDEX_NAME	SEQ_IN_INDEX	COLUMN_NAME	COLLATION	CARDINALITY	SUB_PART	PACKED	NULLABLE	INDEX_TYPE	COMMENT	INDEX_COMMENT
NULL	mysqltest	t1	1	mysqltest	string_data	1	b	A	0	NULL	NULL	YES	BTREE		
show tables like 't%';
Tables_in_test (t%)
t2
t3
t5
show columns from t3 like "a%";
Field	Type	Null	Key	Default	Extra
a	int	YES	MUL	NULL	
select * from information_schema.old_COLUMNS where table_name="t1"
and column_name= "a";
TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	COLUMN_DEFAULT	IS_NULLABLE	DATA_TYPE	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH	NUMERIC_PRECISION	NUMERIC_SCALE	CHARACTER_SET_NAME	COLLATION_NAME	COLUMN_TYPE	COLUMN_KEY	EXTRA	PRIVILEGES	COLUMN_COMMENT	STORAGE	FORMAT
NULL	mysqltest	t1	a	1	NULL	YES	int	NULL	NULL	10	0	NULL	NULL	int					Default	Default
select table_name, column_name, privileges from information_schema.old_columns 
where table_schema = 'mysqltest' and table_name = 't1';
table_name	column_name	privileges
t1	a	
t1	b	
show columns from mysqltest.t1;
Field	Type	Null	Key	Default	Extra
a	int	YES		NULL	
b	varchar(30)	YES	MUL	NULL	
drop tables mysqltest.t4, mysqltest.t1, t2, t3, t5;
drop database mysqltest;
select * from data_dictionary.CHARACTER_SETS
where CHARACTER_SET_NAME like 'latin1%';
CHARACTER_SET_NAME	DEFAULT_COLLATE_NAME	DESCRIPTION	MAXLEN
select * from data_dictionary.COLLATIONS
where COLLATION_NAME like 'latin1%';
CHARACTER_SET_NAME	COLLATION_NAME	DESCRIPTION	ID	IS_DEFAULT	IS_COMPILED	SORTLEN
select * from information_schema.old_table_names;
ERROR 42S02: Unknown table 'old_table_names' in information_schema
select column_type from information_schema.old_columns
where table_schema="information_schema" and table_name="COLUMNS" and
(column_name="character_set_name" or column_name="collation_name");
column_type
select count(*) from data_dictionary.tables where 
table_schema="information_schema" and table_name="COLUMNS";
count(*)
#
select count(*) from data_dictionary.tables
where table_schema="mysql" and table_name="user";
count(*)
#
select table_schema, table_name, column_name from data_dictionary.columns where data_type = 'longtext';
table_schema	table_name	column_name
select table_name, column_name, data_type from data_dictionary.columns where data_type = 'datetime';
table_name	column_name	data_type
SELECT COUNT(*) FROM data_dictionary.tables A
WHERE NOT EXISTS 
(SELECT * FROM data_dictionary.columns B
WHERE A.TABLE_SCHEMA = B.TABLE_SCHEMA
AND A.TABLE_NAME = B.TABLE_NAME);
COUNT(*)
0
create table t1
( x_bigint BIGINT,
x_integer INTEGER,
x_int int,
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 data_dictionary.columns
WHERE TABLE_NAME= 't1';
COLUMN_NAME	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH
x_bigint	0	0
x_integer	0	0
x_int	0	0
x_decimal	0	0
x_numeric	0	0
x_real	0	0
x_float	0	0
x_double_precision	0	0
drop table t1;
SELECT table_schema, count(*) FROM data_dictionary.tables
WHERE table_name NOT LIKE 'ndb_%' AND 
table_name NOT LIKE 'falcon%'
GROUP BY TABLE_SCHEMA ORDER BY table_schema;
table_schema	count(*)
information_schema	16
show create database information_schema;
Database	Create Database
information_schema	CREATE DATABASE `information_schema`
create table t1(f1 LONGBLOB, f2 LONGTEXT);
select column_name,data_type,CHARACTER_OCTET_LENGTH,
CHARACTER_MAXIMUM_LENGTH
from information_schema.old_columns
where table_name='t1';
column_name	data_type	CHARACTER_OCTET_LENGTH	CHARACTER_MAXIMUM_LENGTH
f1	blob	4294967295	4294967295
f2	text	4294967295	4294967295
drop table t1;
create table t1(f1 int, f2 int, f3 BIGINT, f4 int,
f5 BIGINT, f6 int, f7 int);
select column_name, NUMERIC_PRECISION, NUMERIC_SCALE
from information_schema.old_columns
where table_name='t1';
column_name	NUMERIC_PRECISION	NUMERIC_SCALE
f1	10	0
f2	10	0
f3	19	0
f4	10	0
f5	19	0
f6	10	0
f7	10	0
drop table t1;
create table t1 (a int not null, b int);
use information_schema;
select column_name, column_default from information_schema.old_columns
where table_schema='test' and table_name='t1';
column_name	column_default
a	NULL
b	NULL
use test;
show columns from t1;
Field	Type	Null	Key	Default	Extra
a	int	NO		NULL	
b	int	YES		NULL	
drop table t1;
alter database information_schema;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your Drizzle server version for the right syntax to use near '' at line 1
drop database information_schema;
ERROR 42000: Access denied for user ''@'' to database 'information_schema'
use information_schema;
drop table old_tables;
ERROR 42S02: Unknown table 'old_tables' in information_schema
alter table old_tables;
ERROR 42S02: Unknown table 'old_tables' in information_schema
use information_schema;
create temporary table OLD_TABLE_CONSTRAINTS(f1 char(10));
ERROR 42000: Access denied for user ''@'' to database 'information_schema'
use test;
create table t1(id int);
insert into t1(id) values (1);
select 1 from (select 1 from test.t1) a;
1
1
use information_schema;
select 1 from (select 1 from test.t1) a;
1
1
use test;
drop table t1;
create temporary table t1(f1 int, index(f1));
show columns from t1;
Field	Type	Null	Key	Default	Extra
f1	int	YES	MUL	NULL	
describe t1;
Field	Type	Null	Key	Default	Extra
f1	int	YES	MUL	NULL	
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_Comment
t1	1	f1	1	f1	A	0	NULL	NULL	YES	BTREE		
drop table t1;
create table t1(f1 varbinary(32), f2 varbinary(64));
select character_maximum_length, character_octet_length
from information_schema.old_columns where table_name='t1';
character_maximum_length	character_octet_length
32	32
64	64
drop table t1;
select column_type, group_concat(table_schema, '.', table_name), count(*) as num
from information_schema.old_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 column_type, num;
column_type	group_concat(table_schema, '.', table_name)	num
varchar(27)	information_schema.OLD_COLUMNS	1
create table t1(f1 char(1) not null, f2 char(9) not null);
select CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH from
information_schema.old_columns where table_schema='test' and table_name = 't1';
CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH
1	4
9	36
drop table t1;
set @a:= '.';
create table t1(f1 char(5));
create table t2(f1 char(5));
select concat(@a, table_name), @a, table_name
from data_dictionary.tables where table_schema = 'test';
concat(@a, table_name)	@a	table_name
.t1	.	t1
.t2	.	t2
drop table t1,t2;
SELECT t.table_name, c1.column_name
FROM data_dictionary.tables t
INNER JOIN
information_schema.old_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.old_columns c2
WHERE c2.table_schema = t.table_schema AND
c2.table_name = t.table_name AND
c2.column_name LIKE '%SCHEMA%'
        )
AND t.table_name NOT LIKE 'falcon%'
  ORDER BY t.table_name, c1.column_name;
table_name	column_name
INNODB_CMP	page_size
INNODB_CMPMEM	page_size
INNODB_CMPMEM_RESET	page_size
INNODB_CMP_RESET	page_size
INNODB_LOCKS	lock_id
INNODB_LOCK_WAITS	requesting_trx_id
INNODB_TRX	trx_id
OLD_COLUMNS	TABLE_SCHEMA
OLD_GLOBAL_STATUS	VARIABLE_NAME
OLD_GLOBAL_VARIABLES	VARIABLE_NAME
OLD_KEY_COLUMN_USAGE	CONSTRAINT_SCHEMA
OLD_REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
OLD_SESSION_VARIABLES	VARIABLE_NAME
OLD_STATISTICS	TABLE_SCHEMA
OLD_TABLE_CONSTRAINTS	CONSTRAINT_SCHEMA
OPEN_SESSION_STATUS	VARIABLE_NAME
SELECT t.table_name, c1.column_name
FROM data_dictionary.tables t
INNER JOIN
information_schema.old_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.old_columns c2
WHERE c2.table_schema = 'information_schema' AND
c2.table_name = t.table_name AND
c2.column_name LIKE '%SCHEMA%'
        )
AND t.table_name NOT LIKE 'falcon%'
  ORDER BY t.table_name, c1.column_name;
table_name	column_name
INNODB_CMP	page_size
INNODB_CMPMEM	page_size
INNODB_CMPMEM_RESET	page_size
INNODB_CMP_RESET	page_size
INNODB_LOCKS	lock_id
INNODB_LOCK_WAITS	requesting_trx_id
INNODB_TRX	trx_id
OLD_COLUMNS	TABLE_SCHEMA
OLD_GLOBAL_STATUS	VARIABLE_NAME
OLD_GLOBAL_VARIABLES	VARIABLE_NAME
OLD_KEY_COLUMN_USAGE	CONSTRAINT_SCHEMA
OLD_REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
OLD_SESSION_VARIABLES	VARIABLE_NAME
OLD_STATISTICS	TABLE_SCHEMA
OLD_TABLE_CONSTRAINTS	CONSTRAINT_SCHEMA
OPEN_SESSION_STATUS	VARIABLE_NAME
SELECT MAX(table_name) FROM data_dictionary.tables;
MAX(table_name)
OPEN_SESSION_STATUS
SELECT table_name from data_dictionary.tables
WHERE table_name=(SELECT MAX(table_name)
FROM data_dictionary.tables)
ORDER BY table_name;
table_name
OPEN_SESSION_STATUS
create table t1 (f1 int);
create table t2 (f1 int, f2 int);
select table_name from data_dictionary.tables
where table_schema = 'test' and table_name not in
(select table_name from information_schema.old_columns
where table_schema = 'test' and column_name = 'f3')
ORDER BY table_name;
table_name
t1
t2
drop table t1,t2;
select 1 as f1 from data_dictionary.tables  where "CHARACTER_SETS"=
(select cast(table_name as char)  from data_dictionary.tables
order by table_name limit 1) limit 1;
f1
select t.table_name, group_concat(t.table_schema, '.', t.table_name),
count(*) as num1
from data_dictionary.tables t
inner join information_schema.old_columns c1
on t.table_schema = c1.table_schema AND t.table_name = c1.table_name
where t.table_schema = 'information_schema' AND
t.table_name not like 'falcon%' AND
c1.ordinal_position =
(select isnull(c2.column_type) -
isnull(group_concat(c2.table_schema, '.', c2.table_name)) +
count(*) as num
from information_schema.old_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;
table_name	group_concat(t.table_schema, '.', t.table_name)	num1
alter database;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your Drizzle server version for the right syntax to use near '' at line 1
alter database test;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your Drizzle server version for the right syntax to use near '' at line 1
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.old_columns where table_name= 't1' ORDER BY column_default;
column_default
NULL
NULL
NULL
NULL
NULL

10
2006-01-01 00:00:00
show columns from t1;
Field	Type	Null	Key	Default	Extra
f1	varchar(50)	YES		NULL	
f2	varchar(50)	NO		NULL	
f3	varchar(50)	YES			
f4	varchar(50)	YES		NULL	
f5	bigint	NO		NULL	
f6	bigint	NO		10	
f7	datetime	NO		NULL	
f8	datetime	YES		2006-01-01 00:00:00	
drop table t1;
show fields from information_schema.old_table_names;
ERROR 42S02: Unknown table 'old_table_names' in information_schema
show keys from information_schema.old_table_names;
ERROR 42S02: Unknown table 'old_table_names' in information_schema
SET max_heap_table_size = DEFAULT;
USE test;
End of 5.0 tests.
SELECT SCHEMA_NAME FROM data_dictionary.schemas
WHERE SCHEMA_NAME ='information_schema';
SCHEMA_NAME
information_schema
SELECT TABLE_COLLATION FROM data_dictionary.tables
WHERE TABLE_SCHEMA='mysql' and TABLE_NAME= 'db';
TABLE_COLLATION
select * from data_dictionary.columns where table_schema = NULL;
TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	COLUMN_DEFAULT	IS_NULLABLE	DATA_TYPE	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH	NUMERIC_PRECISION	NUMERIC_SCALE	COLLATION_NAME	COLUMN_COMMENT
select * from `data_dictionary`.`columns` where `TABLE_NAME` = NULL;
TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	COLUMN_DEFAULT	IS_NULLABLE	DATA_TYPE	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH	NUMERIC_PRECISION	NUMERIC_SCALE	COLLATION_NAME	COLUMN_COMMENT
select * from `information_schema`.`OLD_KEY_COLUMN_USAGE` where `TABLE_SCHEMA` = NULL;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	POSITION_IN_UNIQUE_CONSTRAINT	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
select * from `information_schema`.`OLD_KEY_COLUMN_USAGE` where `TABLE_NAME` = NULL;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	POSITION_IN_UNIQUE_CONSTRAINT	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
select * from `information_schema`.`OLD_REFERENTIAL_CONSTRAINTS` where `CONSTRAINT_SCHEMA` = NULL;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	UNIQUE_CONSTRAINT_CATALOG	UNIQUE_CONSTRAINT_SCHEMA	UNIQUE_CONSTRAINT_NAME	MATCH_OPTION	UPDATE_RULE	DELETE_RULE	TABLE_NAME	REFERENCED_TABLE_NAME
select * from `information_schema`.`OLD_REFERENTIAL_CONSTRAINTS` where `TABLE_NAME` = NULL;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	UNIQUE_CONSTRAINT_CATALOG	UNIQUE_CONSTRAINT_SCHEMA	UNIQUE_CONSTRAINT_NAME	MATCH_OPTION	UPDATE_RULE	DELETE_RULE	TABLE_NAME	REFERENCED_TABLE_NAME
select * from data_dictionary.schemas where schema_name = NULL;
SCHEMA_NAME	DEFAULT_COLLATION_NAME
select * from `information_schema`.`OLD_STATISTICS` where `TABLE_SCHEMA` = NULL;
TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	NON_UNIQUE	INDEX_SCHEMA	INDEX_NAME	SEQ_IN_INDEX	COLUMN_NAME	COLLATION	CARDINALITY	SUB_PART	PACKED	NULLABLE	INDEX_TYPE	COMMENT	INDEX_COMMENT
select * from `information_schema`.`OLD_STATISTICS` where `TABLE_NAME` = NULL;
TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	NON_UNIQUE	INDEX_SCHEMA	INDEX_NAME	SEQ_IN_INDEX	COLUMN_NAME	COLLATION	CARDINALITY	SUB_PART	PACKED	NULLABLE	INDEX_TYPE	COMMENT	INDEX_COMMENT
select * from data_dictionary.tables where table_schema = NULL;
TABLE_SCHEMA	TABLE_NAME	TABLE_TYPE	ENGINE	ROW_FORMAT	TABLE_COLLATION	TABLE_COMMENT
select * from data_dictionary.tables where table_name = NULL;
TABLE_SCHEMA	TABLE_NAME	TABLE_TYPE	ENGINE	ROW_FORMAT	TABLE_COLLATION	TABLE_COMMENT
select * from `information_schema`.`OLD_TABLE_CONSTRAINTS` where `TABLE_SCHEMA` = NULL;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE
select * from `information_schema`.`OLD_TABLE_CONSTRAINTS` where `TABLE_NAME` = NULL;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE
#
# Test that the query is visible to self and others.
#
SELECT info FROM data_dictionary.processlist WHERE id = CONNECTION_ID();
info
SELECT info FROM data_dictionary.processlist WHERE id = CONNECTION_ID()
show processlist;
ID	USER	HOST	DB	COMMAND	TIME	STATE	INFO
#	#	#	test	Query	#	#	show processlist
#	#	#	test	Sleep	#	#	show processlist
#	#	#	mysqltest	Sleep	#	#	show processlist
SELECT info, command, db
FROM data_dictionary.processlist
WHERE id = CONNECTION_ID();
info	command	db
SELECT info, command, db
FROM data_dictionary.processlist
WHERE id = CONNECTION_ID()	Query	test
SELECT *
FROM data_dictionary.character_sets
ORDER BY character_set_name;
CHARACTER_SET_NAME	DEFAULT_COLLATE_NAME	DESCRIPTION	MAXLEN
binary	binary	UTF-8 Unicode	1
utf8	utf8_general_ci	UTF-8 Unicode	4
SELECT *
FROM data_dictionary.collations
ORDER BY collation_name;
CHARACTER_SET_NAME	COLLATION_NAME	DESCRIPTION	ID	IS_DEFAULT	IS_COMPILED	SORTLEN
binary	binary	binary	63	TRUE	TRUE	1
utf8_general_ci	utf8_bin	utf8	46	FALSE	TRUE	1
utf8_general_ci	utf8_czech_ci	utf8	234	FALSE	TRUE	8
utf8_general_ci	utf8_danish_ci	utf8	235	FALSE	TRUE	8
utf8_general_ci	utf8_esperanto_ci	utf8	241	FALSE	TRUE	8
utf8_general_ci	utf8_estonian_ci	utf8	230	FALSE	TRUE	8
utf8_general_ci	utf8_general_ci	utf8	45	TRUE	TRUE	1
utf8_general_ci	utf8_hungarian_ci	utf8	242	FALSE	TRUE	8
utf8_general_ci	utf8_icelandic_ci	utf8	225	FALSE	TRUE	8
utf8_general_ci	utf8_latvian_ci	utf8	226	FALSE	TRUE	8
utf8_general_ci	utf8_lithuanian_ci	utf8	236	FALSE	TRUE	8
utf8_general_ci	utf8_persian_ci	utf8	240	FALSE	TRUE	8
utf8_general_ci	utf8_polish_ci	utf8	229	FALSE	TRUE	8
utf8_general_ci	utf8_romanian_ci	utf8	227	FALSE	TRUE	8
utf8_general_ci	utf8_roman_ci	utf8	239	FALSE	TRUE	8
utf8_general_ci	utf8_sinhala_ci	utf8	243	FALSE	TRUE	8
utf8_general_ci	utf8_slovak_ci	utf8	237	FALSE	TRUE	8
utf8_general_ci	utf8_slovenian_ci	utf8	228	FALSE	TRUE	8
utf8_general_ci	utf8_spanish2_ci	utf8	238	FALSE	TRUE	8
utf8_general_ci	utf8_spanish_ci	utf8	231	FALSE	TRUE	8
utf8_general_ci	utf8_swedish_ci	utf8	232	FALSE	TRUE	8
utf8_general_ci	utf8_turkish_ci	utf8	233	FALSE	TRUE	8
utf8_general_ci	utf8_unicode_ci	utf8	224	FALSE	TRUE	8
SELECT table_name, column_name
FROM data_dictionary.columns
WHERE table_name IN
(SELECT table_name FROM data_dictionary.tables )
ORDER BY table_name;
table_name	column_name
INNODB_CMP	page_size
INNODB_CMP	compress_ops
INNODB_CMP	compress_ops_ok
INNODB_CMP	compress_time
INNODB_CMP	uncompress_ops
INNODB_CMP	uncompress_time
INNODB_CMPMEM	relocation_time
INNODB_CMPMEM	relocation_ops
INNODB_CMPMEM	pages_free
INNODB_CMPMEM	pages_used
INNODB_CMPMEM	page_size
INNODB_CMPMEM_RESET	relocation_time
INNODB_CMPMEM_RESET	relocation_ops
INNODB_CMPMEM_RESET	pages_free
INNODB_CMPMEM_RESET	pages_used
INNODB_CMPMEM_RESET	page_size
INNODB_CMP_RESET	uncompress_time
INNODB_CMP_RESET	uncompress_ops
INNODB_CMP_RESET	compress_time
INNODB_CMP_RESET	compress_ops_ok
INNODB_CMP_RESET	compress_ops
INNODB_CMP_RESET	page_size
INNODB_LOCKS	lock_data
INNODB_LOCKS	lock_rec
INNODB_LOCKS	lock_page
INNODB_LOCKS	lock_space
INNODB_LOCKS	lock_index
INNODB_LOCKS	lock_table
INNODB_LOCKS	lock_type
INNODB_LOCKS	lock_mode
INNODB_LOCKS	lock_trx_id
INNODB_LOCKS	lock_id
INNODB_LOCK_WAITS	blocking_lock_id
INNODB_LOCK_WAITS	blocking_trx_id
INNODB_LOCK_WAITS	requested_lock_id
INNODB_LOCK_WAITS	requesting_trx_id
INNODB_TRX	trx_query
INNODB_TRX	trx_mysql_thread_id
INNODB_TRX	trx_weight
INNODB_TRX	trx_wait_started
INNODB_TRX	trx_requested_lock_id
INNODB_TRX	trx_started
INNODB_TRX	trx_state
INNODB_TRX	trx_id
OLD_COLUMNS	CHARACTER_SET_NAME
OLD_COLUMNS	COLLATION_NAME
OLD_COLUMNS	COLUMN_TYPE
OLD_COLUMNS	COLUMN_KEY
OLD_COLUMNS	EXTRA
OLD_COLUMNS	PRIVILEGES
OLD_COLUMNS	COLUMN_COMMENT
OLD_COLUMNS	STORAGE
OLD_COLUMNS	FORMAT
OLD_COLUMNS	NUMERIC_SCALE
OLD_COLUMNS	NUMERIC_PRECISION
OLD_COLUMNS	CHARACTER_OCTET_LENGTH
OLD_COLUMNS	TABLE_CATALOG
OLD_COLUMNS	TABLE_SCHEMA
OLD_COLUMNS	TABLE_NAME
OLD_COLUMNS	COLUMN_NAME
OLD_COLUMNS	ORDINAL_POSITION
OLD_COLUMNS	COLUMN_DEFAULT
OLD_COLUMNS	IS_NULLABLE
OLD_COLUMNS	DATA_TYPE
OLD_COLUMNS	CHARACTER_MAXIMUM_LENGTH
OLD_GLOBAL_STATUS	VARIABLE_VALUE
OLD_GLOBAL_STATUS	VARIABLE_NAME
OLD_GLOBAL_VARIABLES	VARIABLE_NAME
OLD_GLOBAL_VARIABLES	VARIABLE_VALUE
OLD_KEY_COLUMN_USAGE	REFERENCED_COLUMN_NAME
OLD_KEY_COLUMN_USAGE	REFERENCED_TABLE_NAME
OLD_KEY_COLUMN_USAGE	REFERENCED_TABLE_SCHEMA
OLD_KEY_COLUMN_USAGE	POSITION_IN_UNIQUE_CONSTRAINT
OLD_KEY_COLUMN_USAGE	ORDINAL_POSITION
OLD_KEY_COLUMN_USAGE	COLUMN_NAME
OLD_KEY_COLUMN_USAGE	TABLE_NAME
OLD_KEY_COLUMN_USAGE	CONSTRAINT_CATALOG
OLD_KEY_COLUMN_USAGE	CONSTRAINT_SCHEMA
OLD_KEY_COLUMN_USAGE	CONSTRAINT_NAME
OLD_KEY_COLUMN_USAGE	TABLE_CATALOG
OLD_KEY_COLUMN_USAGE	TABLE_SCHEMA
OLD_REFERENTIAL_CONSTRAINTS	REFERENCED_TABLE_NAME
OLD_REFERENTIAL_CONSTRAINTS	TABLE_NAME
OLD_REFERENTIAL_CONSTRAINTS	DELETE_RULE
OLD_REFERENTIAL_CONSTRAINTS	UPDATE_RULE
OLD_REFERENTIAL_CONSTRAINTS	MATCH_OPTION
OLD_REFERENTIAL_CONSTRAINTS	UNIQUE_CONSTRAINT_NAME
OLD_REFERENTIAL_CONSTRAINTS	UNIQUE_CONSTRAINT_SCHEMA
OLD_REFERENTIAL_CONSTRAINTS	UNIQUE_CONSTRAINT_CATALOG
OLD_REFERENTIAL_CONSTRAINTS	CONSTRAINT_NAME
OLD_REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
OLD_REFERENTIAL_CONSTRAINTS	CONSTRAINT_CATALOG
OLD_SESSION_VARIABLES	VARIABLE_VALUE
OLD_SESSION_VARIABLES	VARIABLE_NAME
OLD_STATISTICS	TABLE_CATALOG
OLD_STATISTICS	TABLE_SCHEMA
OLD_STATISTICS	TABLE_NAME
OLD_STATISTICS	NON_UNIQUE
OLD_STATISTICS	INDEX_SCHEMA
OLD_STATISTICS	INDEX_NAME
OLD_STATISTICS	SEQ_IN_INDEX
OLD_STATISTICS	INDEX_COMMENT
OLD_STATISTICS	COMMENT
OLD_STATISTICS	INDEX_TYPE
OLD_STATISTICS	NULLABLE
OLD_STATISTICS	PACKED
OLD_STATISTICS	SUB_PART
OLD_STATISTICS	CARDINALITY
OLD_STATISTICS	COLLATION
OLD_STATISTICS	COLUMN_NAME
OLD_TABLE_CONSTRAINTS	CONSTRAINT_TYPE
OLD_TABLE_CONSTRAINTS	TABLE_NAME
OLD_TABLE_CONSTRAINTS	TABLE_SCHEMA
OLD_TABLE_CONSTRAINTS	CONSTRAINT_NAME
OLD_TABLE_CONSTRAINTS	CONSTRAINT_SCHEMA
OLD_TABLE_CONSTRAINTS	CONSTRAINT_CATALOG
OPEN_SESSION_STATUS	VARIABLE_NAME
OPEN_SESSION_STATUS	VARIABLE_VALUE
SELECT *
FROM information_schema.old_key_column_usage;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	POSITION_IN_UNIQUE_CONSTRAINT	REFERENCED_TABLE_SCHEMA	REFERENCED_TABLE_NAME	REFERENCED_COLUMN_NAME
SELECT * 
FROM information_schema.old_referential_constraints;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	UNIQUE_CONSTRAINT_CATALOG	UNIQUE_CONSTRAINT_SCHEMA	UNIQUE_CONSTRAINT_NAME	MATCH_OPTION	UPDATE_RULE	DELETE_RULE	TABLE_NAME	REFERENCED_TABLE_NAME
SELECT count(schema_name) FROM data_dictionary.schemas ORDER BY schema_name;
count(schema_name)
#
SHOW STATUS;
Variable_name	Value
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
SELECT *
FROM information_schema.old_global_status
ORDER BY variable_name;
VARIABLE_NAME	VARIABLE_VALUE
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
#	#
SELECT *
FROM information_schema.old_table_constraints;
CONSTRAINT_CATALOG	CONSTRAINT_SCHEMA	CONSTRAINT_NAME	TABLE_SCHEMA	TABLE_NAME	CONSTRAINT_TYPE
SELECT table_schema, table_name
FROM data_dictionary.tables
WHERE table_schema="data_dictionary"
ORDER BY table_name;
table_schema	table_name
SELECT count(*) FROM data_dictionary.plugins;
count(*)
#