myisam.test

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

flush tables;
# Open t2 and (implicitly) t1.
select * from t2;
# Truncate after flush works (unless another threads reopens t2 in between).
flush tables;
truncate table t1;
insert into t1 values (1);
# Close all tables.
flush tables;
# Open t2 and (implicitly) t1.
select * from t2;
# Truncate t1, wich was not recognized as open without the bugfix.
# Now, it should fail with a table-in-use error message.
--error 1105
truncate table t1;
# The insert used to fail on the crashed table.
insert into t1 values (1);
drop table t1,t2;

#
# bug9188 - Corruption Can't open file: 'table.MYI' (errno: 145)
#
create table t1 (c1 int, c2 varchar(4) not null default '',
                 key(c2(3))) default charset=utf8;
insert into t1 values (1,'A'), (2, 'B'), (3, 'A');
update t1 set c2='A  B' where c1=2;
check table t1;
drop table t1;


#
# Bug#12296 - CHECKSUM TABLE reports 0 for the table
# This happened if the first record was marked as deleted.
#
create table t1 (c1 int);
insert into t1 values (1),(2),(3),(4);
checksum table t1;
delete from t1 where c1 = 1;
create table t2 as select * from t1;
# The following returns 0 with the bug in place.
checksum table t1;
# The above should give the same number as the following.
checksum table t2;
drop table t1, t2;

#
# BUG#12232: New myisam_stats_method variable.
#

show variables like 'myisam_stats_method';

create table t1 (a int, key(a));
insert into t1 values (0),(1),(2),(3),(4);
insert into t1 select NULL from t1;

# default: NULLs considered inequal
analyze table t1; 
show index from t1;
insert into t1 values (11);
delete from t1 where a=11;
check table t1;
show index from t1;

# Set nulls to be equal:
set myisam_stats_method=nulls_equal;
show variables like 'myisam_stats_method';
insert into t1 values (11);
delete from t1 where a=11;

analyze table t1; 
show index from t1;

insert into t1 values (11);
delete from t1 where a=11;

check table t1;
show index from t1;

# Set nulls back to be equal 
set myisam_stats_method=DEFAULT;
show variables like 'myisam_stats_method';
insert into t1 values (11);
delete from t1 where a=11;

analyze table t1; 
show index from t1;

insert into t1 values (11);
delete from t1 where a=11;

check table t1;
show index from t1;

drop table t1;

# WL#2609, CSC#XXXX: MyISAM 
set myisam_stats_method=nulls_ignored;
show variables like 'myisam_stats_method';

create table t1 (
  a char(3), b char(4), c char(5), d char(6),
  key(a,b,c,d)
);
insert into t1 values ('bcd','def1', NULL, 'zz');
insert into t1 values ('bcd','def2', NULL, 'zz');
insert into t1 values ('bce','def1', 'yuu', NULL);
insert into t1 values ('bce','def2', NULL, 'quux');
analyze table t1;
show index from t1;
delete from t1;
analyze table t1;
show index from t1;

set myisam_stats_method=DEFAULT;
drop table t1;

# BUG#13814 - key value packed incorrectly for TINYBLOBs

create table t1(
  cip INT NOT NULL,
  time TIME NOT NULL,
  score INT NOT NULL DEFAULT 0,
  bob TINYBLOB
);

insert into t1 (cip, time) VALUES (1, '00:01'), (2, '00:02'), (3,'00:03');
insert into t1 (cip, bob, time) VALUES (4, 'a', '00:04'), (5, 'b', '00:05'), 
                                       (6, 'c', '00:06');
select * from t1 where bob is null and cip=1;
create index bug on t1 (bob(22), cip, time);
select * from t1 where bob is null and cip=1;
drop table t1;

#
# Bug#14980 - COUNT(*) incorrect on MyISAM table with certain INDEX
#
create table t1 (
  id1 int not null auto_increment,
  id2 int not null default '0',
  t text not null,
  primary key  (id1),
  key x (id2, t(32))
) engine=myisam;
insert into t1 (id2, t) values
(10, 'abc'), (10, 'abc'), (10, 'abc'),
(20, 'abc'), (20, 'abc'), (20, 'def'),
(10, 'abc'), (10, 'abc');
select count(*)   from t1 where id2 = 10;
select count(id1) from t1 where id2 = 10;
drop table t1;

#
# BUG##20357 - Got error 124 from storage engine using MIN and MAX functions
#              in queries
#
CREATE TABLE t1(a TINYINT, KEY(a)) ENGINE=MyISAM;
INSERT INTO t1 VALUES(1);
SELECT MAX(a) FROM t1 IGNORE INDEX(a);
ALTER TABLE t1 DISABLE KEYS;
SELECT MAX(a) FROM t1;
SELECT MAX(a) FROM t1 IGNORE INDEX(a);
DROP TABLE t1;

#
# BUG#18036 - update of table joined to self reports table as crashed
#
CREATE TABLE t1(a CHAR(9), b VARCHAR(7)) ENGINE=MyISAM;
INSERT INTO t1(a) VALUES('xxxxxxxxx'),('xxxxxxxxx');
UPDATE t1 AS ta1,t1 AS ta2 SET ta1.b='aaaaaa',ta2.b='bbbbbb';
SELECT * FROM t1;
DROP TABLE t1;

#
# Bug#8283 - OPTIMIZE TABLE causes data loss
#
SET @@myisam_repair_threads=2;
SHOW VARIABLES LIKE 'myisam_repair%';
#
# Test OPTIMIZE. This creates a new data file.
CREATE TABLE t1 (
  `_id` int(11) NOT NULL default '0',
  `url` text,
  `email` text,
  `description` text,
  `loverlap` int(11) default NULL,
  `roverlap` int(11) default NULL,
  `lneighbor_id` int(11) default NULL,
  `rneighbor_id` int(11) default NULL,
  `length_` int(11) default NULL,
  `sequence` mediumtext,
  `name` text,
  `_obj_class` text NOT NULL,
  PRIMARY KEY  (`_id`),
  UNIQUE KEY `sequence_name_index` (`name`(50)),
  KEY (`length_`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
#
INSERT INTO t1 VALUES
  (1,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample1',''),
  (2,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample2',''),
  (3,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample3',''),
  (4,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample4',''),
  (5,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample5',''),
  (6,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample6',''),
  (7,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample7',''),
  (8,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample8',''),
  (9,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample9','');
#
SELECT _id FROM t1;
DELETE FROM t1 WHERE _id < 8;
--replace_column 6 # 7 # 8 # 9 # 11 # 12 # 13 # 14 # 15 # 16 #
SHOW TABLE STATUS LIKE 't1';
CHECK TABLE t1 EXTENDED;
OPTIMIZE TABLE t1;
CHECK TABLE t1 EXTENDED;
--replace_column 6 # 7 # 8 # 9 # 11 # 12 # 13 # 14 # 15 # 16 #
SHOW TABLE STATUS LIKE 't1';
SELECT _id FROM t1;
DROP TABLE t1;
#
# Test REPAIR QUICK. This retains the old data file.
CREATE TABLE t1 (
  `_id` int(11) NOT NULL default '0',
  `url` text,
  `email` text,
  `description` text,
  `loverlap` int(11) default NULL,
  `roverlap` int(11) default NULL,
  `lneighbor_id` int(11) default NULL,
  `rneighbor_id` int(11) default NULL,
  `length_` int(11) default NULL,
  `sequence` mediumtext,
  `name` text,
  `_obj_class` text NOT NULL,
  PRIMARY KEY  (`_id`),
  UNIQUE KEY `sequence_name_index` (`name`(50)),
  KEY (`length_`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
#
INSERT INTO t1 VALUES
  (1,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample1',''),
  (2,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample2',''),
  (3,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample3',''),
  (4,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample4',''),
  (5,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample5',''),
  (6,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample6',''),
  (7,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample7',''),
  (8,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample8',''),
  (9,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'sample9','');
#
SELECT _id FROM t1;
DELETE FROM t1 WHERE _id < 8;
--replace_column 6 # 7 # 8 # 9 # 11 # 12 # 13 # 14 # 15 # 16 #
SHOW TABLE STATUS LIKE 't1';
CHECK TABLE t1 EXTENDED;
REPAIR TABLE t1 QUICK;
CHECK TABLE t1 EXTENDED;
--replace_column 6 # 7 # 8 # 9 # 11 # 12 # 13 # 14 # 15 # 16 #
SHOW TABLE STATUS LIKE 't1';
SELECT _id FROM t1;
DROP TABLE t1;
#
SET @@myisam_repair_threads=1;
SHOW VARIABLES LIKE 'myisam_repair%';

#
# BUG#21310 - Trees in SQL causing a "crashed" table with MyISAM storage
#             engine
#

# A simplified test case that reflect crashed table issue.
CREATE TABLE t1(a VARCHAR(16));
INSERT INTO t1 VALUES('aaaaaaaa'),(NULL);
UPDATE t1 AS ta1, t1 AS ta2 SET ta1.a='aaaaaaaaaaaaaaaa';
SELECT * FROM t1;
DROP TABLE t1;

# A test case that reflect wrong result set.
CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(1),(2);
UPDATE t1,t1 AS t2 SET t1.a=t1.a+2 WHERE t1.a=t2.a-1;
SELECT * FROM t1 ORDER BY a;
DROP TABLE t1;

#
# Bug#24607 - MyISAM pointer size determined incorrectly
#
CREATE TABLE t1 (c1 TEXT) AVG_ROW_LENGTH=70100 MAX_ROWS=4100100100;
--replace_column 5 X 6 X 7 X 9 X 10 X 11 X 12 X 13 X 14 X 16 X
SHOW TABLE STATUS LIKE 't1';
DROP TABLE t1;