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include/master-slave.inc
[connection master]
connection slave;
SET @saved_slave_type_conversions = @@slave_type_conversions;
SET GLOBAL SLAVE_TYPE_CONVERSIONS = 'ALL_NON_LOSSY';
connection master;
DROP TABLE IF EXISTS t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
--------------------------------------------------------------------------------------------------------------
--------------------------------------------COMPRESSED TO COMPRESSED------------------------------------------
--------------------------------------------------------------------------------------------------------------
connection slave;
CREATE TABLE t1 (a BLOB COMPRESSED default "1111111111") ENGINE=innodb;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED default "0") ENGINE=innodb;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=innodb;
connection master;
CREATE TABLE t1 (a BLOB COMPRESSED default "1111111111") ENGINE=myisam;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED default "0") ENGINE=myisam;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=myisam;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),(default);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009"),(default);
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
--------------------------------------------------data on master------------------------------------------------
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
0 M,compressed
1000 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
108
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1 0 M,compressed
10 12-12-2009 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
6 qwerty M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
3000 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
92
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
84
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
8 00-00-00 M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
5 April M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
88
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10 1111111111 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
104
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 29
COLUMN_DECOMPRESSIONS 58
--------------------------------------------------data on slave-------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
0 S,compressed
1000 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
108
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1 0 S,compressed
10 12-12-2009 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
6 qwerty S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
3000 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
92
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
84
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
8 00-00-00 S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
5 April S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
88
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10 1111111111 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
104
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 58
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
FLUSH STATUS;
-----------------------------------------------------------------------------------------------------------------
---------------------------------------COMPRESSED TO NOT COMPRESSED----------------------------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
FLUSH STATUS;
CREATE TABLE t1 (a BLOB) ENGINE=innodb;
CREATE TABLE t2 (a TINYBLOB) ENGINE=innodb;
CREATE TABLE t3 (a MEDIUMBLOB) ENGINE=innodb;
CREATE TABLE t4 (a LONGBLOB) ENGINE=innodb;
CREATE TABLE t5 (a TEXT) ENGINE=innodb;
CREATE TABLE t6 (a TINYTEXT) ENGINE=innodb;
CREATE TABLE t7 (a MEDIUMTEXT) ENGINE=innodb;
CREATE TABLE t8 (a LONGTEXT) ENGINE=innodb;
CREATE TABLE t9 (a VARCHAR(10000)) ENGINE=innodb;
CREATE TABLE t10 (a VARBINARY(10000)) ENGINE=innodb;
connection master;
CREATE TABLE IF NOT EXISTS t1 (a BLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t2 (a TINYBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t3 (a MEDIUMBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t4 (a LONGBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t5 (a TEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t6 (a TINYTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t7 (a MEDIUMTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t8 (a LONGTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t9 (a VARCHAR(10000) COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t10 (a VARBINARY(10000) COMPRESSED) ENGINE=myisam;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009");
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
---------------------------------------data on master-----------------------------------------------------------
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
0 M,compressed
1000 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
108
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10 12-12-2009 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
100
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
6 qwerty M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
120
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
3000 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
92
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
80
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
84
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
8 00-00-00 M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
120
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
5 April M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
88
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
80
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
84
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 29
COLUMN_DECOMPRESSIONS 58
---------------------------------------data on slave-------------------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
0 S,not compressed
1000 aaaaaaaaaa S,not compressed
2000 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10 12-12-2009 S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
6 qwerty S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
3000 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
254 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
8 00-00-00 S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
2000 vvvvvvvvvv S,not compressed
5 April S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
254 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
16384
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 0
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
FLUSH STATUS;
-----------------------------------------------------------------------------------------------------------------
-----------------------------------NOT COMPRESSED to COMPRESSED--------------------------------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
FLUSH STATUS;
CREATE TABLE t1 (a BLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED) ENGINE=innodb;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=innodb;
connection master;
CREATE TABLE IF NOT EXISTS t1 (a BLOB) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t2 (a TINYBLOB) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t3 (a MEDIUMBLOB) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t4 (a LONGBLOB) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t5 (a TEXT) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t6 (a TINYTEXT) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t7 (a MEDIUMTEXT) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t8 (a LONGTEXT) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t9 (a VARCHAR(10000)) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t10 (a VARBINARY(10000)) ENGINE=myisam;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009");
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
-----------------------------------data on master---------------------------------------------------------------
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
0 M,not compressed
1000 aaaaaaaaaa M,not compressed
2000 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
3364
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10 12-12-2009 M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
1564
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
6 qwerty M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
10576
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
3000 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
3344
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
254 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
596
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
1544
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
8 00-00-00 M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
10576
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
2000 vvvvvvvvvv M,not compressed
5 April M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
2156
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
254 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
596
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
1544
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 0
-----------------------------------data on slave-----------------------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
0 S,compressed
1000 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10 12-12-2009 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
6 qwerty S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
3000 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
8 00-00-00 S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
5 April S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
16384
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 58
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
-----------------------------------------------------------------------------------------------------------------
------varchar(1000)->varchar(999) compressed, varchar(1000) compressed->varchar(999) ----------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
CREATE TABLE t1 (a VARCHAR(999) COMPRESSED) ENGINE=innodb;
CREATE TABLE t2 (a VARCHAR(999)) ENGINE=innodb;
show warnings;
Level Code Message
call mtr.add_suppression("Slave: Data too long for column 'a' at row 1 Error_code: 1406");
call mtr.add_suppression("Slave: Table 't2' already exists Error_code: 1050");
connection master;
CREATE TABLE IF NOT EXISTS t1 (a VARCHAR(1000))ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t2 (a VARCHAR(1000) COMPRESSED)ENGINE=myisam;
INSERT INTO t1(a) VALUES(REPEAT('a',1000));
connection slave;
include/wait_for_slave_sql_error_and_skip.inc [errno=1406,1677]
show warnings;
Level Code Message
connection master;
INSERT INTO t2(a) VALUES(REPEAT('a',1000));
connection slave;
include/wait_for_slave_sql_error_and_skip.inc [errno=1406,1677]
show warnings;
Level Code Message
SET GLOBAL SLAVE_TYPE_CONVERSIONS = @saved_slave_type_conversions;
connection master;
DROP TABLE t1,t2;
connection slave;
connection slave;
SET @saved_slave_type_conversions = @@slave_type_conversions;
SET GLOBAL SLAVE_TYPE_CONVERSIONS = 'ALL_NON_LOSSY';
connection master;
DROP TABLE IF EXISTS t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
--------------------------------------------------------------------------------------------------------------
--------------------------------------------COMPRESSED TO COMPRESSED------------------------------------------
--------------------------------------------------------------------------------------------------------------
connection slave;
CREATE TABLE t1 (a BLOB COMPRESSED default "1111111111") ENGINE=innodb;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED default "0") ENGINE=innodb;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=innodb;
connection master;
CREATE TABLE t1 (a BLOB COMPRESSED default "1111111111") ENGINE=innodb;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED default "0") ENGINE=innodb;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=innodb;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),(default);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009"),(default);
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
--------------------------------------------------data on master------------------------------------------------
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
0 M,compressed
1000 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1 0 M,compressed
10 12-12-2009 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
6 qwerty M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
3000 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
8 00-00-00 M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
5 April M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10 1111111111 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
16384
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 30
COLUMN_DECOMPRESSIONS 58
--------------------------------------------------data on slave-------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
0 S,compressed
1000 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1 0 S,compressed
10 12-12-2009 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
6 qwerty S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
3000 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
8 00-00-00 S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
5 April S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10 1111111111 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
16384
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 116
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
FLUSH STATUS;
-----------------------------------------------------------------------------------------------------------------
---------------------------------------COMPRESSED TO NOT COMPRESSED----------------------------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
FLUSH STATUS;
CREATE TABLE t1 (a BLOB) ENGINE=innodb;
CREATE TABLE t2 (a TINYBLOB) ENGINE=innodb;
CREATE TABLE t3 (a MEDIUMBLOB) ENGINE=innodb;
CREATE TABLE t4 (a LONGBLOB) ENGINE=innodb;
CREATE TABLE t5 (a TEXT) ENGINE=innodb;
CREATE TABLE t6 (a TINYTEXT) ENGINE=innodb;
CREATE TABLE t7 (a MEDIUMTEXT) ENGINE=innodb;
CREATE TABLE t8 (a LONGTEXT) ENGINE=innodb;
CREATE TABLE t9 (a VARCHAR(10000)) ENGINE=innodb;
CREATE TABLE t10 (a VARBINARY(10000)) ENGINE=innodb;
connection master;
CREATE TABLE IF NOT EXISTS t1 (a BLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t2 (a TINYBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t3 (a MEDIUMBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t4 (a LONGBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t5 (a TEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t6 (a TINYTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t7 (a MEDIUMTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t8 (a LONGTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t9 (a VARCHAR(10000) COMPRESSED) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t10 (a VARBINARY(10000) COMPRESSED) ENGINE=innodb;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009");
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
---------------------------------------data on master-----------------------------------------------------------
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
0 M,compressed
1000 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10 12-12-2009 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
6 qwerty M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
3000 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
8 00-00-00 M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
5 April M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
16384
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 29
COLUMN_DECOMPRESSIONS 58
---------------------------------------data on slave-------------------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
0 S,not compressed
1000 aaaaaaaaaa S,not compressed
2000 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10 12-12-2009 S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
6 qwerty S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
3000 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
254 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
8 00-00-00 S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
2000 vvvvvvvvvv S,not compressed
5 April S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
254 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
16384
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 0
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
FLUSH STATUS;
-----------------------------------------------------------------------------------------------------------------
-----------------------------------NOT COMPRESSED to COMPRESSED--------------------------------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
FLUSH STATUS;
CREATE TABLE t1 (a BLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=innodb;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=innodb;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED) ENGINE=innodb;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=innodb;
connection master;
CREATE TABLE IF NOT EXISTS t1 (a BLOB) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t2 (a TINYBLOB) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t3 (a MEDIUMBLOB) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t4 (a LONGBLOB) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t5 (a TEXT) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t6 (a TINYTEXT) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t7 (a MEDIUMTEXT) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t8 (a LONGTEXT) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t9 (a VARCHAR(10000)) ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t10 (a VARBINARY(10000)) ENGINE=innodb;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009");
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
-----------------------------------data on master---------------------------------------------------------------
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
0 M,not compressed
1000 aaaaaaaaaa M,not compressed
2000 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10 12-12-2009 M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
6 qwerty M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
3000 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
254 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
8 00-00-00 M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
2000 vvvvvvvvvv M,not compressed
5 April M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
254 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
16384
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
16384
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 0
-----------------------------------data on slave-----------------------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
0 S,compressed
1000 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10 12-12-2009 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
6 qwerty S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
3000 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
8 00-00-00 S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
5 April S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
16384
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
16384
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 58
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
-----------------------------------------------------------------------------------------------------------------
------varchar(1000)->varchar(999) compressed, varchar(1000) compressed->varchar(999) ----------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
CREATE TABLE t1 (a VARCHAR(999) COMPRESSED) ENGINE=innodb;
CREATE TABLE t2 (a VARCHAR(999)) ENGINE=innodb;
show warnings;
Level Code Message
call mtr.add_suppression("Slave: Data too long for column 'a' at row 1 Error_code: 1406");
call mtr.add_suppression("Slave: Table 't2' already exists Error_code: 1050");
connection master;
CREATE TABLE IF NOT EXISTS t1 (a VARCHAR(1000))ENGINE=innodb;
CREATE TABLE IF NOT EXISTS t2 (a VARCHAR(1000) COMPRESSED)ENGINE=innodb;
INSERT INTO t1(a) VALUES(REPEAT('a',1000));
connection slave;
include/wait_for_slave_sql_error_and_skip.inc [errno=1406,1677]
show warnings;
Level Code Message
connection master;
INSERT INTO t2(a) VALUES(REPEAT('a',1000));
connection slave;
include/wait_for_slave_sql_error_and_skip.inc [errno=1406,1677]
show warnings;
Level Code Message
SET GLOBAL SLAVE_TYPE_CONVERSIONS = @saved_slave_type_conversions;
connection master;
DROP TABLE t1,t2;
connection slave;
connection slave;
SET @saved_slave_type_conversions = @@slave_type_conversions;
SET GLOBAL SLAVE_TYPE_CONVERSIONS = 'ALL_NON_LOSSY';
connection master;
DROP TABLE IF EXISTS t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
--------------------------------------------------------------------------------------------------------------
--------------------------------------------COMPRESSED TO COMPRESSED------------------------------------------
--------------------------------------------------------------------------------------------------------------
connection slave;
CREATE TABLE t1 (a BLOB COMPRESSED default "1111111111") ENGINE=myisam;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED default "0") ENGINE=myisam;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=myisam;
connection master;
CREATE TABLE t1 (a BLOB COMPRESSED default "1111111111") ENGINE=myisam;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED default "0") ENGINE=myisam;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=myisam;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),(default);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009"),(default);
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
--------------------------------------------------data on master------------------------------------------------
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
0 M,compressed
1000 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
108
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1 0 M,compressed
10 12-12-2009 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
6 qwerty M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
3000 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
92
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
84
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
8 00-00-00 M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
5 April M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
88
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "M,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10 1111111111 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
104
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 30
COLUMN_DECOMPRESSIONS 58
--------------------------------------------------data on slave-------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
0 S,compressed
1000 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
108
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1 0 S,compressed
10 12-12-2009 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
6 qwerty S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
3000 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
92
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
84
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
8 00-00-00 S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
5 April S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
88
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10 1111111111 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
104
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 116
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
FLUSH STATUS;
-----------------------------------------------------------------------------------------------------------------
---------------------------------------COMPRESSED TO NOT COMPRESSED----------------------------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
FLUSH STATUS;
CREATE TABLE t1 (a BLOB) ENGINE=myisam;
CREATE TABLE t2 (a TINYBLOB) ENGINE=myisam;
CREATE TABLE t3 (a MEDIUMBLOB) ENGINE=myisam;
CREATE TABLE t4 (a LONGBLOB) ENGINE=myisam;
CREATE TABLE t5 (a TEXT) ENGINE=myisam;
CREATE TABLE t6 (a TINYTEXT) ENGINE=myisam;
CREATE TABLE t7 (a MEDIUMTEXT) ENGINE=myisam;
CREATE TABLE t8 (a LONGTEXT) ENGINE=myisam;
CREATE TABLE t9 (a VARCHAR(10000)) ENGINE=myisam;
CREATE TABLE t10 (a VARBINARY(10000)) ENGINE=myisam;
connection master;
CREATE TABLE IF NOT EXISTS t1 (a BLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t2 (a TINYBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t3 (a MEDIUMBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t4 (a LONGBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t5 (a TEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t6 (a TINYTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t7 (a MEDIUMTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t8 (a LONGTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t9 (a VARCHAR(10000) COMPRESSED) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t10 (a VARBINARY(10000) COMPRESSED) ENGINE=myisam;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009");
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
---------------------------------------data on master-----------------------------------------------------------
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
0 M,compressed
1000 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
108
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10 12-12-2009 M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
100
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
6 qwerty M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
120
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
3000 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
92
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
80
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
84
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
10000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
8 00-00-00 M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
120
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
2000 vvvvvvvvvv M,compressed
5 April M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
88
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
100 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
254 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
80
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,compressed
1000 aaaaaaaaaa M,compressed
200 vvvvvvvvvv M,compressed
300 rrrrrrrrrr M,compressed
NULL NULL M,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
84
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 29
COLUMN_DECOMPRESSIONS 58
---------------------------------------data on slave-------------------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
0 S,not compressed
1000 aaaaaaaaaa S,not compressed
2000 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
3364
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10 12-12-2009 S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
1564
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
6 qwerty S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
10576
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
3000 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
3344
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
254 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
596
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
1544
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
10000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
8 00-00-00 S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
10576
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
2000 vvvvvvvvvv S,not compressed
5 April S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
2156
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
100 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
254 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
596
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,not compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,not compressed
1000 aaaaaaaaaa S,not compressed
200 vvvvvvvvvv S,not compressed
300 rrrrrrrrrr S,not compressed
NULL NULL S,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
1544
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 0
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
FLUSH STATUS;
-----------------------------------------------------------------------------------------------------------------
-----------------------------------NOT COMPRESSED to COMPRESSED--------------------------------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
FLUSH STATUS;
CREATE TABLE t1 (a BLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t2 (a TINYBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t3 (a MEDIUMBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t4 (a LONGBLOB COMPRESSED) ENGINE=myisam;
CREATE TABLE t5 (a TEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t6 (a TINYTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t7 (a MEDIUMTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t8 (a LONGTEXT COMPRESSED) ENGINE=myisam;
CREATE TABLE t9 (a VARCHAR(10000) COMPRESSED) ENGINE=myisam;
CREATE TABLE t10 (a VARBINARY(10000) COMPRESSED) ENGINE=myisam;
connection master;
CREATE TABLE IF NOT EXISTS t1 (a BLOB) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t2 (a TINYBLOB) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t3 (a MEDIUMBLOB) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t4 (a LONGBLOB) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t5 (a TEXT) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t6 (a TINYTEXT) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t7 (a MEDIUMTEXT) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t8 (a LONGTEXT) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t9 (a VARCHAR(10000)) ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t10 (a VARBINARY(10000)) ENGINE=myisam;
INSERT INTO t1(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t2(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t3(a) VALUES(REPEAT('a',100)),(REPEAT('v',2000)),("April"),(NULL);
INSERT INTO t4(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("00-00-00");
INSERT INTO t5(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL);
INSERT INTO t6(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',254)),(NULL);
INSERT INTO t7(a) VALUES(REPEAT('a',100)),(REPEAT('v',200)),(REPEAT('r',3000)),(NULL);
INSERT INTO t8(a) VALUES(REPEAT('a',10000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("qwerty");
INSERT INTO t9(a) VALUES(REPEAT('a',1000)),(REPEAT('v',200)),(REPEAT('r',300)),(NULL),("12-12-2009");
INSERT INTO t10(a) VALUES(REPEAT('a',1000)),(REPEAT('v',2000)),(REPEAT('r',300)),(NULL), ("");
-----------------------------------data on master---------------------------------------------------------------
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
0 M,not compressed
1000 aaaaaaaaaa M,not compressed
2000 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
3364
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10 12-12-2009 M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
1564
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
6 qwerty M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
10576
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
3000 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
3344
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
254 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
596
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
1544
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
10000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
8 00-00-00 M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
10576
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
2000 vvvvvvvvvv M,not compressed
5 April M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
2156
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
100 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
254 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
596
SELECT LENGTH(a),SUBSTRING(a,1,10), "M,not compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) M,not compressed
1000 aaaaaaaaaa M,not compressed
200 vvvvvvvvvv M,not compressed
300 rrrrrrrrrr M,not compressed
NULL NULL M,not compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
1544
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 0
-----------------------------------data on slave-----------------------------------------------------------------
connection slave;
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t10;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
0 S,compressed
1000 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t10';
DATA_LENGTH
108
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t9;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10 12-12-2009 S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t9';
DATA_LENGTH
100
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t8;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
6 qwerty S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t8';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t7;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
3000 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t7';
DATA_LENGTH
92
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t6;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t6';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t5;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t5';
DATA_LENGTH
84
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t4;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
10000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
8 00-00-00 S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t4';
DATA_LENGTH
120
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t3;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
2000 vvvvvvvvvv S,compressed
5 April S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t3';
DATA_LENGTH
88
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t2;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
100 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
254 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t2';
DATA_LENGTH
80
SELECT LENGTH(a), SUBSTRING(a,1,10), "S,compressed" from t1;
LENGTH(a) SUBSTRING(a,1,10) S,compressed
1000 aaaaaaaaaa S,compressed
200 vvvvvvvvvv S,compressed
300 rrrrrrrrrr S,compressed
NULL NULL S,compressed
SELECT DATA_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DATA_LENGTH
84
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME IN('Column_compressions', 'Column_decompressions');
VARIABLE_NAME VARIABLE_VALUE
COLUMN_COMPRESSIONS 0
COLUMN_DECOMPRESSIONS 58
connection master;
DROP TABLE t1,t2,t3,t4,t5,t6,t7,t8,t9,t10;
-----------------------------------------------------------------------------------------------------------------
------varchar(1000)->varchar(999) compressed, varchar(1000) compressed->varchar(999) ----------------------------
-----------------------------------------------------------------------------------------------------------------
connection slave;
CREATE TABLE t1 (a VARCHAR(999) COMPRESSED) ENGINE=myisam;
CREATE TABLE t2 (a VARCHAR(999)) ENGINE=myisam;
show warnings;
Level Code Message
call mtr.add_suppression("Slave: Data too long for column 'a' at row 1 Error_code: 1406");
call mtr.add_suppression("Slave: Table 't2' already exists Error_code: 1050");
connection master;
CREATE TABLE IF NOT EXISTS t1 (a VARCHAR(1000))ENGINE=myisam;
CREATE TABLE IF NOT EXISTS t2 (a VARCHAR(1000) COMPRESSED)ENGINE=myisam;
INSERT INTO t1(a) VALUES(REPEAT('a',1000));
connection slave;
include/wait_for_slave_sql_error_and_skip.inc [errno=1406,1677]
show warnings;
Level Code Message
connection master;
INSERT INTO t2(a) VALUES(REPEAT('a',1000));
connection slave;
include/wait_for_slave_sql_error_and_skip.inc [errno=1406,1677]
show warnings;
Level Code Message
SET GLOBAL SLAVE_TYPE_CONVERSIONS = @saved_slave_type_conversions;
connection master;
DROP TABLE t1,t2;
connection slave;
include/rpl_end.inc