~drizzle-trunk/drizzle/development

DROP TABLE IF EXISTS t0,t1,t2,t3,t4,t5;
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 data_dictionary.indexes where TABLE_SCHEMA = "mysqltest";
TABLE_SCHEMA	TABLE_NAME	INDEX_NAME	IS_USED_IN_PRIMARY	IS_UNIQUE	IS_NULLABLE	KEY_LENGTH	INDEX_TYPE	INDEX_COMMENT
mysqltest	t1	string_data	NO	NO	YES	120	UNKNOWN	NULL
show tables like 't%';
Tables_in_test (t%)
t2
t3
t5
show table status;
Session	Schema	Name	Type	Engine	Version	Rows	Avg_row_length	Table_size	Auto_increment
#	test	t5	STANDARD	InnoDB	#	#	#	#	#
show columns from t3 like "a%";
Field	Type	Null	Default	Default_is_NULL	On_Update
a	INTEGER	YES		YES	
select * from data_dictionary.columns where table_name="t1"
and column_name= "a";
TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	COLUMN_TYPE	ORDINAL_POSITION	COLUMN_DEFAULT	COLUMN_DEFAULT_IS_NULL	COLUMN_DEFAULT_UPDATE	IS_AUTO_INCREMENT	IS_NULLABLE	IS_INDEXED	IS_USED_IN_PRIMARY	IS_UNIQUE	IS_MULTI	IS_FIRST_IN_MULTI	INDEXES_FOUND_IN	DATA_TYPE	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH	NUMERIC_PRECISION	NUMERIC_SCALE	ENUM_VALUES	COLLATION_NAME	COLUMN_COMMENT
mysqltest	t1	a	INTEGER	0	NULL	YES		NO	YES	NO	NO	NO	NO	NO	0	INTEGER	0	0	0	0	NULL		NULL
select table_name, column_name from data_dictionary.columns 
where table_schema = 'mysqltest' and table_name = 't1';
table_name	column_name
t1	a
t1	b
show columns from mysqltest.t1;
Field	Type	Null	Default	Default_is_NULL	On_Update
a	INTEGER	YES		YES	
b	VARCHAR	YES		YES	
drop tables mysqltest.t4, mysqltest.t1, t2, t3, t5;
drop database mysqltest;
select column_type from data_dictionary.columns
where table_schema="data_dictionary" and table_name="COLUMNS" and
(column_name="character_set_name" or column_name="collation_name");
column_type
VARCHAR
select count(*) from data_dictionary.tables where 
table_schema="data_dictionary" 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_decimal	0	0
x_double_precision	0	0
x_float	0	0
x_int	0	0
x_integer	0	0
x_numeric	0	0
x_real	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(*)
DATA_DICTIONARY	#
INFORMATION_SCHEMA	#
create table t1(f1 LONGBLOB, f2 LONGTEXT);
select column_name,data_type,CHARACTER_OCTET_LENGTH,
CHARACTER_MAXIMUM_LENGTH
from data_dictionary.columns
where table_name='t1';
column_name	data_type	CHARACTER_OCTET_LENGTH	CHARACTER_MAXIMUM_LENGTH
f1	BLOB	0	0
f2	BLOB	0	0
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 data_dictionary.columns
where table_name='t1';
column_name	NUMERIC_PRECISION	NUMERIC_SCALE
f1	0	0
f2	0	0
f3	0	0
f4	0	0
f5	0	0
f6	0	0
f7	0	0
drop table t1;
create table t1 (a int not null, b int);
select column_name, column_default from data_dictionary.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	Default	Default_is_NULL	On_Update
a	INTEGER	NO		NO	
b	INTEGER	YES		YES	
drop table t1;
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 data_dictionary;
select 1 from (select 1 from test.t1) a;
1
1
use test;
drop table t1;
create table t1(f1 varbinary(32), f2 varbinary(64));
select character_maximum_length, character_octet_length
from data_dictionary.columns where table_name='t1';
character_maximum_length	character_octet_length
32	128
64	256
drop table t1;
select column_type, group_concat(table_schema, '.', table_name), count(*) as num
from data_dictionary.columns where
table_schema='data_dictionary' 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
create table t1(f1 char(1) not null, f2 char(9) not null);
select CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH from
data_dictionary.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
data_dictionary.columns c1
ON t.table_schema = c1.table_schema AND
t.table_name = c1.table_name
WHERE t.table_schema = 'data_dictionary' AND
c1.ordinal_position =
( SELECT COALESCE(MIN(c2.ordinal_position),1)
FROM data_dictionary.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
CHARACTER_SETS	DEFAULT_COLLATE_NAME
COLLATIONS	COLLATION_NAME
COLUMNS	TABLE_SCHEMA
CUMULATIVE_SQL_COMMANDS	COUNT_SELECT
CUMULATIVE_USER_STATS	BYTES_RECEIVED
CURRENT_SQL_COMMANDS	IP
DRIZZLE_PROTOCOL_STATUS	VARIABLE_VALUE
GLOBAL_STATEMENTS	VARIABLE_VALUE
GLOBAL_STATUS	VARIABLE_VALUE
GLOBAL_VARIABLES	VARIABLE_VALUE
INDEXES	TABLE_SCHEMA
INDEX_PARTS	TABLE_SCHEMA
INNODB_CMP	COMPRESS_OPS
INNODB_CMPMEM	PAGES_USED
INNODB_CMPMEM_RESET	PAGES_USED
INNODB_CMP_RESET	COMPRESS_OPS
INNODB_LOCKS	LOCK_TRX_ID
INNODB_LOCK_WAITS	REQUESTED_LOCK_ID
INNODB_STATUS	VARIABLE_VALUE
INNODB_TRX	TRX_STATE
MODULES	MODULE_VERSION
MYSQL_PROTOCOL_STATUS	VARIABLE_VALUE
PLUGINS	PLUGIN_TYPE
PROCESSLIST	USER
REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
REPLICATION_STREAMS	APPLIER
SCHEMAS	SCHEMA_NAME
SCOREBOARD_STATISTICS	NUMBER_OF_RANGE_LOCKS
SESSION_STATEMENTS	VARIABLE_VALUE
SESSION_STATUS	VARIABLE_VALUE
SESSION_VARIABLES	VARIABLE_VALUE
SHOW_COLUMNS	Type
SHOW_INDEXES	Unique
SHOW_SCHEMAS	SCHEMA_NAME
SHOW_TABLE_STATUS	Schema
SHOW_TEMPORARY_TABLES	TABLE_SCHEMA
TABLES	TABLE_SCHEMA
TABLE_CACHE	TABLE_SCHEMA
TABLE_CONSTRAINTS	CONSTRAINT_SCHEMA
TABLE_DEFINITION_CACHE	TABLE_SCHEMA
SELECT t.table_name, c1.column_name
FROM data_dictionary.tables t
INNER JOIN
data_dictionary.columns c1
ON t.table_schema = c1.table_schema AND
t.table_name = c1.table_name
WHERE t.table_schema = 'data_dictionary' AND
c1.ordinal_position =
( SELECT COALESCE(MIN(c2.ordinal_position),1)
FROM data_dictionary.columns c2
WHERE c2.table_schema = 'data_dictionary' 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
CHARACTER_SETS	DEFAULT_COLLATE_NAME
COLLATIONS	COLLATION_NAME
COLUMNS	TABLE_SCHEMA
CUMULATIVE_SQL_COMMANDS	COUNT_SELECT
CUMULATIVE_USER_STATS	BYTES_RECEIVED
CURRENT_SQL_COMMANDS	IP
DRIZZLE_PROTOCOL_STATUS	VARIABLE_VALUE
GLOBAL_STATEMENTS	VARIABLE_VALUE
GLOBAL_STATUS	VARIABLE_VALUE
GLOBAL_VARIABLES	VARIABLE_VALUE
INDEXES	TABLE_SCHEMA
INDEX_PARTS	TABLE_SCHEMA
INNODB_CMP	COMPRESS_OPS
INNODB_CMPMEM	PAGES_USED
INNODB_CMPMEM_RESET	PAGES_USED
INNODB_CMP_RESET	COMPRESS_OPS
INNODB_LOCKS	LOCK_TRX_ID
INNODB_LOCK_WAITS	REQUESTED_LOCK_ID
INNODB_STATUS	VARIABLE_VALUE
INNODB_TRX	TRX_STATE
MODULES	MODULE_VERSION
MYSQL_PROTOCOL_STATUS	VARIABLE_VALUE
PLUGINS	PLUGIN_TYPE
PROCESSLIST	USER
REFERENTIAL_CONSTRAINTS	CONSTRAINT_SCHEMA
REPLICATION_STREAMS	APPLIER
SCHEMAS	SCHEMA_NAME
SCOREBOARD_STATISTICS	NUMBER_OF_RANGE_LOCKS
SESSION_STATEMENTS	VARIABLE_VALUE
SESSION_STATUS	VARIABLE_VALUE
SESSION_VARIABLES	VARIABLE_VALUE
SHOW_COLUMNS	Type
SHOW_INDEXES	Unique
SHOW_SCHEMAS	SCHEMA_NAME
SHOW_TABLE_STATUS	Schema
SHOW_TEMPORARY_TABLES	TABLE_SCHEMA
TABLES	TABLE_SCHEMA
TABLE_CACHE	TABLE_SCHEMA
TABLE_CONSTRAINTS	CONSTRAINT_SCHEMA
TABLE_DEFINITION_CACHE	TABLE_SCHEMA
SELECT MAX(table_name) FROM data_dictionary.tables;
MAX(table_name)
VIEW_TABLE_USAGE
SELECT table_name from data_dictionary.tables
WHERE table_name=(SELECT MAX(table_name)
FROM data_dictionary.tables)
ORDER BY table_name;
table_name
VIEW_TABLE_USAGE
create table t1 (f1 int);
create table t2 (f1 int, f2 int);
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
1
select t.table_name, group_concat(t.table_schema, '.', t.table_name),
count(*) as num1
from data_dictionary.tables t
inner join data_dictionary.columns c1
on t.table_schema = c1.table_schema AND t.table_name = c1.table_name
where t.table_schema = 'data_dictionary' 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 data_dictionary.columns c2 where
c2.table_schema='data_dictionary' 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'
);
show columns from t1;
Field	Type	Null	Default	Default_is_NULL	On_Update
f1	VARCHAR	YES		YES	
f2	VARCHAR	NO		NO	
f3	VARCHAR	YES		NO	
f4	VARCHAR	YES		YES	
f5	BIGINT	NO		NO	
f6	BIGINT	NO	10	NO	
f7	DATETIME	NO		NO	
f8	DATETIME	YES	2006-01-01 00:00:00	NO	
drop table t1;
SET max_heap_table_size = DEFAULT;
USE test;
End of 5.0 tests.
SELECT SCHEMA_NAME FROM data_dictionary.schemas
WHERE SCHEMA_NAME ='data_dictionary';
SCHEMA_NAME
data_dictionary
SELECT TABLE_COLLATION FROM data_dictionary.tables
WHERE TABLE_SCHEMA='mysql' and TABLE_NAME= 'db';
TABLE_COLLATION
#
# 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()
SELECT info, command, db
FROM data_dictionary.processlist
WHERE id = CONNECTION_ID();
info	command	db
FROM data_dictionary.processlist
SELECT info, command, db
WHERE id = CONNECTION_ID()	Query	test