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104 lines
3.3 KiB
Text
104 lines
3.3 KiB
Text
#
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# MDEV-26137 ALTER TABLE IMPORT enhancement
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#
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# drop t1 before importing t2
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CREATE TABLE t1 (a int) ENGINE=InnoDB;
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INSERT INTO t1 VALUES(42);
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FLUSH TABLES t1 FOR EXPORT;
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UNLOCK TABLES;
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DROP TABLE t1;
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ALTER TABLE t2 IMPORT TABLESPACE;
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SHOW CREATE TABLE t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`a` int(11) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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SELECT * FROM t2;
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a
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42
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DROP TABLE t2;
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# created t2 but did not discard tablespace
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CREATE TABLE t1 (a int) ENGINE=InnoDB;
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INSERT INTO t1 VALUES(42);
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CREATE TABLE t2 LIKE t1;
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FLUSH TABLES t1 FOR EXPORT;
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UNLOCK TABLES;
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DROP TABLE t1;
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call mtr.add_suppression("InnoDB: Unable to import tablespace");
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ALTER TABLE t2 IMPORT TABLESPACE;
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ERROR HY000: Tablespace for table 'test/t2' exists. Please DISCARD the tablespace before IMPORT
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SHOW CREATE TABLE t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`a` int(11) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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SELECT * FROM t2;
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a
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DROP TABLE t2;
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# attempt to import when there's no tablespace
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ALTER TABLE t2 IMPORT TABLESPACE;
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ERROR 42S02: Table 'test.t2' doesn't exist
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# with index
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CREATE TABLE t1 (a int, b varchar(50)) ENGINE=InnoDB;
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CREATE UNIQUE INDEX ai ON t1 (a);
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INSERT INTO t1 VALUES(42, "hello");
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FLUSH TABLES t1 FOR EXPORT;
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UNLOCK TABLES;
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ALTER TABLE t2 IMPORT TABLESPACE;
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SHOW CREATE TABLE t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`a` int(11) DEFAULT NULL,
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`b` varchar(50) DEFAULT NULL,
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UNIQUE KEY `ai` (`a`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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SELECT * FROM t2;
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a b
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42 hello
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SHOW INDEX FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t1 0 ai 1 a A 1 NULL NULL YES BTREE NO
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SHOW INDEX FROM t2;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t2 0 ai 1 a A 1 NULL NULL YES BTREE NO
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DROP TABLE t1, t2;
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# with virtual column index
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CREATE TABLE t1 (a int, b int as (a * a)) ENGINE=InnoDB;
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CREATE UNIQUE INDEX ai ON t1 (b);
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INSERT INTO t1 VALUES(42, default);
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FLUSH TABLES t1 FOR EXPORT;
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UNLOCK TABLES;
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ALTER TABLE t2 IMPORT TABLESPACE;
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SHOW CREATE TABLE t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`a` int(11) DEFAULT NULL,
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`b` int(11) GENERATED ALWAYS AS (`a` * `a`) VIRTUAL,
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UNIQUE KEY `ai` (`b`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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SELECT * FROM t2;
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a b
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42 1764
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SELECT b FROM t2 USE INDEX (ai);
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b
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1764
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SHOW INDEX FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t1 0 ai 1 b A 1 NULL NULL YES BTREE NO
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SHOW INDEX FROM t2;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t2 0 ai 1 b A 1 NULL NULL YES BTREE NO
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CHECK TABLE t2 EXTENDED;
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Table Op Msg_type Msg_text
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test.t2 check status OK
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DROP TABLE t1, t2;
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# with auto_increment
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CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT, i2 INT, i1 INT)ENGINE=INNODB;
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INSERT INTO t1 (i2) SELECT 4 FROM seq_1_to_1024;
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FLUSH TABLE t1 FOR EXPORT;
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UNLOCK TABLES;
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ALTER TABLE t2 IMPORT TABLESPACE;
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CHECK TABLE t2 EXTENDED;
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Table Op Msg_type Msg_text
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test.t2 check status OK
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DROP TABLE t2, t1;
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