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37 lines
1.3 KiB
Text
37 lines
1.3 KiB
Text
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set global innodb_file_per_table=1;
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CREATE TABLE ref_table1 (id int(11) NOT NULL, PRIMARY KEY(id)) ENGINE=InnoDB;
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CREATE TABLE ref_table2 (id int(11) NOT NULL, PRIMARY KEY(id)) ENGINE=InnoDB;
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CREATE TABLE `main` (
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`id` int(11) NOT NULL AUTO_INCREMENT,
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`ref_id1` int(11) NOT NULL,
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`ref_id2` int(11) NOT NULL,
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PRIMARY KEY (`id`),
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UNIQUE KEY `idx_1` (`ref_id1`,`ref_id2`),
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KEY `FK_set_out_analysis_route_id` (`ref_id2`),
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CONSTRAINT `FK_1` FOREIGN KEY (`ref_id1`) REFERENCES `ref_table1` (`id`) ,
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CONSTRAINT `FK_2` FOREIGN KEY (`ref_id2`) REFERENCES `ref_table2` (`id`)
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) ENGINE=InnoDB;
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SET FOREIGN_KEY_CHECKS=0;
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DROP INDEX `idx_1` ON `main`;
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SHOW TABLES;
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Tables_in_test
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main
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ref_table1
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ref_table2
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# restart and see if we can still access the main table
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SET FOREIGN_KEY_CHECKS=0;
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ALTER TABLE `main` ADD INDEX `idx_1` (`ref_id1`);
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SHOW CREATE TABLE `main`;
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Table Create Table
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main CREATE TABLE `main` (
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`id` int(11) NOT NULL AUTO_INCREMENT,
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`ref_id1` int(11) NOT NULL,
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`ref_id2` int(11) NOT NULL,
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PRIMARY KEY (`id`),
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KEY `FK_set_out_analysis_route_id` (`ref_id2`),
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KEY `idx_1` (`ref_id1`),
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CONSTRAINT `FK_1` FOREIGN KEY (`ref_id1`) REFERENCES `ref_table1` (`id`),
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CONSTRAINT `FK_2` FOREIGN KEY (`ref_id2`) REFERENCES `ref_table2` (`id`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE main, ref_table1, ref_table2;
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