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************************************************************
* Creating table with char+binary types
************************************************************
CREATE TABLE t2(
c1 char(2), c2 char(128), c3 char(255),
b1 binary(2), b2 binary(128), b3 binary(255),
vc1 varchar(2), vc2 varchar(255), vc3 varchar(1024),
vb1 varbinary(2), vb2 varbinary(255), vb3 varbinary(1024)
) ENGINE=NDB;
INSERT INTO t2 VALUES(
repeat('a', 2), repeat('b', 128), repeat('c', 255),
repeat('d', 2), repeat('e', 128), repeat('f', 255),
repeat('g', 2), repeat('h', 255), repeat('i', 1024),
repeat('j', 2), repeat('k', 255), repeat('l', 1024)
);
************************************************************
* Backing up table with char+binary types
************************************************************
************************************************************
* Restoring table with unchanged char+binary types:
* char(2) --> char(2)
* char(128) --> char(128)
* char(255) --> char(255)
* binary(2) --> binary(2)
* binary(128) --> binary(128)
* binary(255) --> binary(255)
* varchar(2) --> varchar(2)
* varchar(255) --> varchar(255)
* varchar(1024) --> varchar(1024)
* varbinary(2) --> varbinary(2)
* varbinary(255) --> varbinary(255)
* varbinary(1024) --> varbinary(1024)
************************************************************
CREATE TABLE t2_myisam ENGINE=MYISAM AS SELECT * FROM t2;
DELETE FROM t2;
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
2 128 255 2 128 128 2 255 1024 2 255 1024
SELECT COUNT(*) FROM t2 NATURAL JOIN t2_myisam;
COUNT(*)
1
DROP TABLE t2_myisam;
************************************************************
* Restoring table with 1st degree demoted char+binary types:
* char(2) --> char(1)
* char(128) --> char(2)
* char(255) --> char(128)
* binary(2) --> binary(1)
* binary(128) --> binary(2)
* binary(255) --> binary(128)
* varchar(2) --> varchar(1)
* varchar(255) --> varchar(2)
* varchar(1024) --> varchar(512)
* varbinary(2) --> varbinary(1)
* varbinary(255) --> varbinary(2)
* varbinary(1024) --> varbinary(512)
************************************************************
ALTER TABLE t2
modify c1 char(1), modify c2 char(2), modify c3 char(128),
modify b1 binary(1), modify b2 binary(2), modify b3 binary(128),
modify vc1 varchar(1), modify vc2 varchar(2), modify vc3 varchar(512),
modify vb1 varbinary(1), modify vb2 varbinary(2), modify vb3 varbinary(512);
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 2 128 1 2 2 1 2 512 1 2 512
CREATE TABLE t2_myisam ENGINE=MYISAM AS SELECT * FROM t2;
DELETE FROM t2;
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 2 128 1 2 2 1 2 512 1 2 512
SELECT COUNT(*) FROM t2 NATURAL JOIN t2_myisam;
COUNT(*)
1
DROP TABLE t2_myisam;
************************************************************
* Restoring table with 2nd degree demoted char+binary types:
* char(2) --> char(1)
* char(128) --> char(1)
* char(255) --> char(2)
* binary(2) --> binary(1)
* binary(128) --> binary(1)
* binary(255) --> binary(2)
* varchar(2) --> varchar(1)
* varchar(255) --> varchar(1)
* varchar(1024) --> varchar(255)
* varbinary(2) --> varbinary(1)
* varbinary(255) --> varbinary(1)
* varbinary(1024) --> varbinary(255)
************************************************************
ALTER TABLE t2
modify c1 char(1), modify c2 char(1), modify c3 char(2),
modify b1 binary(1), modify b2 binary(1), modify b3 binary(2),
modify vc1 varchar(1), modify vc2 varchar(1), modify vc3 varchar(255),
modify vb1 varbinary(1), modify vb2 varbinary(1), modify vb3 varbinary(255);
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 1 2 1 1 1 1 1 255 1 1 255
CREATE TABLE t2_myisam ENGINE=MYISAM AS SELECT * FROM t2;
DELETE FROM t2;
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 1 2 1 1 1 1 1 255 1 1 255
SELECT COUNT(*) FROM t2 NATURAL JOIN t2_myisam;
COUNT(*)
1
DROP TABLE t2_myisam;
************************************************************
* Restoring table with 3rd degree demoted char+binary types:
* char(2) --> char(1)
* char(128) --> char(1)
* char(255) --> char(1)
* binary(2) --> binary(1)
* binary(128) --> binary(1)
* binary(255) --> binary(1)
* varchar(2) --> varchar(1)
* varchar(255) --> varchar(1)
* varchar(1024) --> varchar(1)
* varbinary(2) --> varbinary(1)
* varbinary(255) --> varbinary(1)
* varbinary(1024) --> varbinary(1)
************************************************************
ALTER TABLE t2
modify c1 char(1), modify c2 char(1), modify c3 char(1),
modify b1 binary(1), modify b2 binary(1), modify b3 binary(1),
modify vc1 varchar(1), modify vc2 varchar(1), modify vc3 varchar(1),
modify vb1 varbinary(1), modify vb2 varbinary(1), modify vb3 varbinary(1);
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 1 1 1 1 1 1 1 1 1 1 1
CREATE TABLE t2_myisam ENGINE=MYISAM AS SELECT * FROM t2;
DELETE FROM t2;
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 1 1 1 1 1 1 1 1 1 1 1
SELECT COUNT(*) FROM t2 NATURAL JOIN t2_myisam;
COUNT(*)
1
DROP TABLE t2_myisam;
************************************************************
* Restoring table with changed var-ness of char+binary types:
* char(2) --> varchar(2)
* char(128) --> varchar(128)
* char(255) --> varchar(255)
* binary(2) --> varbinary(2)
* binary(128) --> varbinary(128)
* binary(255) --> varbinary(255)
* varchar(2) --> char(2)
* varchar(255) --> char(255)
* varchar(1024) --> varchar(1024)
* varbinary(2) --> binary(2)
* varbinary(255) --> binary(255)
* varbinary(1024) --> varbinary(1024)
************************************************************
DELETE FROM t2;
ALTER TABLE t2
modify c1 varchar(2), modify c2 varchar(128), modify c3 varchar(255),
modify b1 varbinary(2), modify b2 varbinary(128), modify b3 varbinary(255),
modify vc1 char(2), modify vc2 char(255), modify vc3 varchar(1024),
modify vb1 binary(2), modify vb2 binary(255), modify vb3 varbinary(1024);
INSERT INTO t2 VALUES(
repeat('a', 2), repeat('b', 128), repeat('c', 255),
repeat('d', 2), repeat('e', 128), repeat('f', 255),
repeat('g', 2), repeat('h', 255), repeat('i', 1024),
repeat('j', 2), repeat('k', 255), repeat('l', 1024)
);
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
2 128 255 2 128 128 2 255 1024 2 255 1024
CREATE TABLE t2_myisam ENGINE=MYISAM AS SELECT * FROM t2;
DELETE FROM t2;
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
2 128 255 2 128 128 2 255 1024 2 255 1024
SELECT COUNT(*) FROM t2 NATURAL JOIN t2_myisam;
COUNT(*)
1
DROP TABLE t2_myisam;
************************************************************
* Restoring table with changed varness + 1st degree demoted types:
* char(2) --> varchar(1)
* char(128) --> varchar(2)
* char(255) --> varchar(128)
* binary(2) --> varbinary(1)
* binary(128) --> varbinary(2)
* binary(255) --> varbinary(128)
* varchar(2) --> char(1)
* varchar(255) --> char(2)
* varchar(1024) --> char(255)
* varbinary(2) --> binary(1)
* varbinary(255) --> binary(2)
* varbinary(1024) --> binary(255)
************************************************************
DELETE FROM t2;
ALTER TABLE t2
modify c1 varchar(1), modify c2 varchar(2), modify c3 varchar(128),
modify b1 varbinary(1), modify b2 varbinary(2), modify b3 varbinary(128),
modify vc1 char(1), modify vc2 char(2), modify vc3 char(255),
modify vb1 binary(1), modify vb2 binary(2), modify vb3 binary(255);
INSERT INTO t2 VALUES(
repeat('a', 2), repeat('b', 128), repeat('c', 255),
repeat('d', 2), repeat('e', 128), repeat('f', 255),
repeat('g', 2), repeat('h', 255), repeat('i', 1024),
repeat('j', 2), repeat('k', 255), repeat('l', 1024)
);
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 2 128 1 2 2 1 2 255 1 2 255
CREATE TABLE t2_myisam ENGINE=MYISAM AS SELECT * FROM t2;
DELETE FROM t2;
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 2 128 1 2 2 1 2 255 1 2 255
SELECT COUNT(*) FROM t2 NATURAL JOIN t2_myisam;
COUNT(*)
1
DROP TABLE t2_myisam;
************************************************************
* Restoring table with changed varness + 2nd degree demoted types:
* char(2) --> varchar(1)
* char(128) --> varchar(1)
* char(255) --> varchar(2)
* binary(2) --> varbinary(1)
* binary(128) --> varbinary(1)
* binary(255) --> varbinary(2)
* varchar(2) --> char(1)
* varchar(255) --> char(1)
* varchar(1024) --> char(255)
* varbinary(2) --> binary(1)
* varbinary(255) --> binary(1)
* varbinary(1024) --> binary(255)
************************************************************
DELETE FROM t2;
ALTER TABLE t2
modify c1 varchar(1), modify c2 varchar(1), modify c3 varchar(2),
modify b1 varbinary(1), modify b2 varbinary(1), modify b3 varbinary(2),
modify vc1 char(1), modify vc2 char(1), modify vc3 char(255),
modify vb1 binary(1), modify vb2 binary(1), modify vb3 binary(255);
INSERT INTO t2 VALUES(
repeat('a', 2), repeat('b', 128), repeat('c', 255),
repeat('d', 2), repeat('e', 128), repeat('f', 255),
repeat('g', 2), repeat('h', 255), repeat('i', 1024),
repeat('j', 2), repeat('k', 255), repeat('l', 1024)
);
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 1 2 1 1 1 1 1 255 1 1 255
CREATE TABLE t2_myisam ENGINE=MYISAM AS SELECT * FROM t2;
DELETE FROM t2;
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 1 2 1 1 1 1 1 255 1 1 255
SELECT COUNT(*) FROM t2 NATURAL JOIN t2_myisam;
COUNT(*)
1
DROP TABLE t2_myisam;
************************************************************
* Restoring table with changed varness + 3rd degree demoted types:
* char(2) --> varchar(1)
* char(128) --> varchar(1)
* char(255) --> varchar(1)
* binary(2) --> varbinary(1)
* binary(128) --> varbinary(1)
* binary(255) --> varbinary(1)
* varchar(2) --> char(1)
* varchar(255) --> char(1)
* varchar(1024) --> char(1)
* varbinary(2) --> binary(1)
* varbinary(255) --> binary(1)
* varbinary(1024) --> binary(1)
************************************************************
DELETE FROM t2;
ALTER TABLE t2
modify c1 varchar(1), modify c2 varchar(1), modify c3 varchar(1),
modify b1 varbinary(1), modify b2 varbinary(1), modify b3 varbinary(1),
modify vc1 char(1), modify vc2 char(1), modify vc3 char(1),
modify vb1 binary(1), modify vb2 binary(1), modify vb3 binary(1);
INSERT INTO t2 VALUES(
repeat('a', 2), repeat('b', 128), repeat('c', 255),
repeat('d', 2), repeat('e', 128), repeat('f', 255),
repeat('g', 2), repeat('h', 255), repeat('i', 1024),
repeat('j', 2), repeat('k', 255), repeat('l', 1024)
);
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 1 1 1 1 1 1 1 1 1 1 1
CREATE TABLE t2_myisam ENGINE=MYISAM AS SELECT * FROM t2;
DELETE FROM t2;
SELECT
length(c1), length(c2), length(c3),
length(b1), length(b2), length(b2),
length(vc1), length(vc2), length(vc3),
length(vb1), length(vb2), length(vb3)
FROM t2;
length(c1) length(c2) length(c3) length(b1) length(b2) length(b2) length(vc1) length(vc2) length(vc3) length(vb1) length(vb2) length(vb3)
1 1 1 1 1 1 1 1 1 1 1 1
SELECT COUNT(*) FROM t2 NATURAL JOIN t2_myisam;
COUNT(*)
1
DROP TABLE t2_myisam;
************************************************************
* Deleting table with char+binary types
************************************************************
DROP TABLE t2;