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SET @save_stats_persistent = @@GLOBAL.innodb_stats_persistent;
SET GLOBAL innodb_stats_persistent = 0;
FLUSH TABLES;
# Treating compact format as dynamic format after import stmt
CREATE TABLE t1
(a int AUTO_INCREMENT PRIMARY KEY,
b blob,
c blob,
KEY (b(200))) ENGINE=InnoDB ROW_FORMAT=COMPACT;
BEGIN;
INSERT INTO t1 (b, c) values (repeat("ab", 200), repeat("bc", 200));
INSERT INTO t1 (b, c) values (repeat("bc", 200), repeat("cd", 200));
INSERT INTO t1 (b, c) values (repeat("cd", 200), repeat("ef", 200));
INSERT INTO t1 (b, c) values (repeat("de", 200), repeat("fg", 200));
INSERT INTO t1 (b, c) values (repeat("ef", 200), repeat("gh", 200));
INSERT INTO t1 (b, c) values (repeat("fg", 200), repeat("hi", 200));
INSERT INTO t1 (b, c) values (repeat("gh", 200), repeat("ij", 200));
INSERT INTO t1 (b, c) values (repeat("hi", 200), repeat("jk", 200));
INSERT INTO t1 (b, c) values (repeat("ij", 200), repeat("kl", 200));
INSERT INTO t1 (b, c) values (repeat("jk", 200), repeat("lm", 200));
INSERT INTO t1 (b, c) SELECT b,c FROM t1 ORDER BY a;
INSERT INTO t1 (b, c) SELECT b,c FROM t1 ORDER BY a;
COMMIT;
SELECT COUNT(*) FROM t1;
COUNT(*)
40
FLUSH TABLE t1 FOR EXPORT;
# List before copying files
db.opt
t1.cfg
t1.frm
t1.ibd
backup: t1
UNLOCK TABLES;
ALTER TABLE t1 ROW_FORMAT=DYNAMIC;
ALTER TABLE t1 DISCARD TABLESPACE;
db.opt
t1.frm
restore: t1 .ibd and .cfg files
ALTER TABLE t1 IMPORT TABLESPACE;
ERROR HY000: Internal error: Drop all secondary indexes before importing table test/t1 when .cfg file is missing.
ALTER TABLE t1 DROP INDEX b;
Warnings:
Warning 1814 Tablespace has been discarded for table `t1`
ALTER TABLE t1 IMPORT TABLESPACE;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL AUTO_INCREMENT,
`b` blob DEFAULT NULL,
`c` blob DEFAULT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB AUTO_INCREMENT=46 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci ROW_FORMAT=DYNAMIC
# Auto increment value must be more than maximum column value
SELECT MAX(a) FROM t1;
MAX(a)
45
SELECT auto_increment FROM information_schema.tables
WHERE table_name like 't1';
auto_increment
46
UPDATE t1 set b = repeat("de", 100) where b = repeat("cd", 200);
explain SELECT a FROM t1 where b = repeat("de", 100);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL # Using where
SELECT a FROM t1 where b = repeat("de", 100);
a
3
13
28
38
SELECT COUNT(*) FROM t1;
COUNT(*)
40
DELETE FROM t1;
InnoDB 0 transactions not purged
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
DROP TABLE t1;
CREATE TABLE t1
(c1 int AUTO_INCREMENT PRIMARY KEY,
c2 POINT NOT NULL,
c3 LINESTRING NOT NULL,
SPATIAL INDEX idx1(c2)) ENGINE=InnoDB ROW_FORMAT=COMPACT;
INSERT INTO t1(c2,c3) VALUES(
ST_GeomFromText('POINT(10 10)'),
ST_GeomFromText('LINESTRING(5 5,20 20,30 30)'));
INSERT INTO t1(c2,c3) VALUES(
ST_GeomFromText('POINT(20 20)'),
ST_GeomFromText('LINESTRING(5 15,20 10,30 20)'));
INSERT INTO t1(c2,c3) VALUES(
ST_GeomFromText('POINT(30 30)'),
ST_GeomFromText('LINESTRING(10 5,20 24,30 32)'));
INSERT INTO t1(c2,c3) VALUES(
ST_GeomFromText('POINT(40 40)'),
ST_GeomFromText('LINESTRING(15 5,25 20,35 30)'));
INSERT INTO t1(c2,c3) VALUES(
ST_GeomFromText('POINT(50 10)'),
ST_GeomFromText('LINESTRING(15 15,24 10,31 20)'));
INSERT INTO t1(c2,c3) VALUES(
ST_GeomFromText('POINT(60 50)'),
ST_GeomFromText('LINESTRING(10 15,20 44,35 32)'));
BEGIN;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
INSERT INTO t1(c2, c3) SELECT c2, c3 FROM t1;
COMMIT;
FLUSH TABLE t1 FOR EXPORT;
# List before copying files
db.opt
t1.cfg
t1.frm
t1.ibd
backup: t1
UNLOCK TABLES;
ALTER TABLE t1 ROW_FORMAT=DYNAMIC;
ALTER TABLE t1 DISCARD TABLESPACE;
restore: t1 .ibd and .cfg files
ALTER TABLE t1 IMPORT TABLESPACE;
ERROR HY000: Internal error: Drop all secondary indexes before importing table test/t1 when .cfg file is missing.
ALTER TABLE t1 DROP INDEX idx1;
Warnings:
Warning 1814 Tablespace has been discarded for table `t1`
ALTER TABLE t1 IMPORT TABLESPACE;
Warnings:
Warning 1810 IO Read error: (2, No such file or directory) Error opening './test/t1.cfg', will attempt to import without schema verification
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` point NOT NULL,
`c3` linestring NOT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=14325 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci ROW_FORMAT=DYNAMIC
# Auto increment value must be more than maximum column value
SELECT MAX(c1) FROM t1;
MAX(c1)
14324
SELECT auto_increment FROM information_schema.tables
WHERE table_name like 't1';
auto_increment
14325
UPDATE t1 SET C2 = ST_GeomFromText('POINT(0 0)');
SELECT COUNT(*) FROM t1;
COUNT(*)
12288
DELETE FROM t1;
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
InnoDB 0 transactions not purged
DROP TABLE t1;
SET @save_algo = @@GLOBAL.innodb_compression_algorithm;
SET GLOBAL innodb_compression_algorithm=2;
CREATE TABLE t1(a SERIAL) PAGE_COMPRESSED=1 ENGINE=InnoDB;
INSERT INTO t1 VALUES(1);
FLUSH TABLE t1 FOR EXPORT;
# List before copying files
db.opt
t1.cfg
t1.frm
t1.ibd
backup: t1
UNLOCK TABLES;
SET GLOBAL innodb_compression_algorithm=0;
ALTER TABLE t1 FORCE;
ALTER TABLE t1 DISCARD TABLESPACE;
db.opt
t1.frm
restore: t1 .ibd and .cfg files
ALTER TABLE t1 IMPORT TABLESPACE;
INSERT INTO t1 VALUES(2);
SELECT * FROM t1;
a
1
2
SET GLOBAL innodb_compression_algorithm=3;
FLUSH TABLE t1 FOR EXPORT;
# List before copying files
db.opt
t1.cfg
t1.frm
t1.ibd
backup: t1
UNLOCK TABLES;
SET GLOBAL innodb_compression_algorithm=0;
ALTER TABLE t1 FORCE;
ALTER TABLE t1 DISCARD TABLESPACE;
# Display the discarded table name by using SPACE and PAGE_NO
# column in INNODB_SYS_INDEXES and discard doesn't affect the
# SPACE in INNODB_SYS_TABLES
SELECT t.NAME, t.SPACE BETWEEN 1 and 0xFFFFFFEF as SYS_TABLE_SPACE_RANGE
FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES t
WHERE t.TABLE_ID IN (
SELECT i.TABLE_ID FROM
INFORMATION_SCHEMA.INNODB_SYS_INDEXES i WHERE
i.PAGE_NO IS NULL and i.SPACE IS NULL);
NAME SYS_TABLE_SPACE_RANGE
test/t1 1
db.opt
t1.frm
restore: t1 .ibd and .cfg files
ALTER TABLE t1 IMPORT TABLESPACE;
INSERT INTO t1 VALUES(3);
SELECT * FROM t1;
a
1
2
3
DROP TABLE t1;
SET GLOBAL innodb_compression_algorithm=@save_algo;
SET GLOBAL innodb_stats_persistent = @save_stats_persistent;
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