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cffbb17480
Before MySQL 4.0.18, user-specified constraint names were ignored. Starting with MySQL 4.0.18, the specified constraint name was prepended with the schema name and '/'. Now we are transforming into a format where the constraint name is prepended with the dict_table_t::name and the impossible UTF-8 sequence 0xff. Generated constraint names will be ASCII decimal numbers. On upgrade, old FOREIGN KEY constraint names will be displayed without any schema name prefix. They will be updated to the new format on DDL operations. dict_foreign_t::sql_id(): Return the SQL constraint name without any schemaname/tablename\377 or schemaname/ prefix. row_rename_table_for_mysql(), dict_table_rename_in_cache(): Simplify the logic: Just rename constraints to the new format. dict_table_get_foreign_id(): Replaces dict_table_get_highest_foreign_id(). innobase_get_foreign_key_info(): Let my_error() refer to erroneous anonymous constraints as "(null)". row_delete_constraint(): Try to drop all 3 constraint name variants. Reviewed by: Thirunarayanan Balathandayuthapani Tested by: Matthias Leich
118 lines
3.9 KiB
Text
118 lines
3.9 KiB
Text
#
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# Bug#46941 crash with lower_case_table_names=2 and
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# foreign data dictionary confusion
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#
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CREATE DATABASE XY;
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USE XY;
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set @old_table_open_cache=@@table_open_cache;
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set global table_open_cache = 512;
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set global table_open_cache = @old_table_open_cache;
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DROP DATABASE XY;
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USE TEST;
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#
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# Bug55222 Mysqldump table names case bug in REFERENCES clause
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# InnoDB did not handle lower_case_table_names=2 for
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# foreign_table_names and referenced_table_names.
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#
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SHOW VARIABLES LIKE 'lower_case_table_names';
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Variable_name Value
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lower_case_table_names 2
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DROP TABLE IF EXISTS `Table2`;
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DROP TABLE IF EXISTS `Table1`;
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CREATE TABLE `Table1`(c1 INT PRIMARY KEY) ENGINE=InnoDB;
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CREATE TABLE `Table2`(c1 INT PRIMARY KEY, c2 INT) ENGINE=InnoDB;
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ALTER TABLE `Table2` ADD CONSTRAINT fk1 FOREIGN KEY(c2) REFERENCES `Table1`(c1);
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SHOW CREATE TABLE `Table2`;
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Table Table2
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Create Table CREATE TABLE `Table2` (
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`c1` int(11) NOT NULL,
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`c2` int(11) DEFAULT NULL,
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PRIMARY KEY (`c1`),
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KEY `fk1` (`c2`),
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CONSTRAINT `fk1` FOREIGN KEY (`c2`) REFERENCES `Table1` (`c1`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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SELECT * FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS WHERE CONSTRAINT_SCHEMA='test';
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CONSTRAINT_CATALOG def
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CONSTRAINT_SCHEMA test
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CONSTRAINT_NAME fk1
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UNIQUE_CONSTRAINT_CATALOG def
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UNIQUE_CONSTRAINT_SCHEMA test
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UNIQUE_CONSTRAINT_NAME PRIMARY
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MATCH_OPTION NONE
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UPDATE_RULE RESTRICT
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DELETE_RULE RESTRICT
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TABLE_NAME Table2
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REFERENCED_TABLE_NAME Table1
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DROP TABLE `Table2`;
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DROP TABLE `Table1`;
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DROP TABLE IF EXISTS Product_Order;
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DROP TABLE IF EXISTS Product;
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DROP TABLE IF EXISTS Customer;
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CREATE TABLE Product (Category INT NOT NULL, Id INT NOT NULL,
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Price DECIMAL, PRIMARY KEY(Category, Id)) ENGINE=InnoDB;
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CREATE TABLE Customer (Id INT NOT NULL, PRIMARY KEY (Id)) ENGINE=InnoDB;
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CREATE TABLE Product_Order (No INT NOT NULL AUTO_INCREMENT,
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Product_Category INT NOT NULL,
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Product_Id INT NOT NULL,
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Customer_Id INT NOT NULL,
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PRIMARY KEY(No),
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INDEX (Product_Category, Product_Id),
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FOREIGN KEY (Product_Category, Product_Id)
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REFERENCES Product(Category, Id) ON UPDATE CASCADE ON DELETE RESTRICT,
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INDEX (Customer_Id),
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FOREIGN KEY (Customer_Id)
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REFERENCES Customer(Id)
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) ENGINE=INNODB;
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SHOW CREATE TABLE Product_Order;
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Table Product_Order
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Create Table CREATE TABLE `Product_Order` (
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`No` int(11) NOT NULL AUTO_INCREMENT,
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`Product_Category` int(11) NOT NULL,
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`Product_Id` int(11) NOT NULL,
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`Customer_Id` int(11) NOT NULL,
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PRIMARY KEY (`No`),
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KEY `Product_Category` (`Product_Category`,`Product_Id`),
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KEY `Customer_Id` (`Customer_Id`),
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CONSTRAINT `1` FOREIGN KEY (`Product_Category`, `Product_Id`) REFERENCES `Product` (`Category`, `Id`) ON UPDATE CASCADE,
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CONSTRAINT `2` FOREIGN KEY (`Customer_Id`) REFERENCES `Customer` (`Id`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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SHOW CREATE TABLE Product;
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Table Product
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Create Table CREATE TABLE `Product` (
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`Category` int(11) NOT NULL,
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`Id` int(11) NOT NULL,
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`Price` decimal(10,0) DEFAULT NULL,
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PRIMARY KEY (`Category`,`Id`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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SHOW CREATE TABLE Customer;
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Table Customer
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Create Table CREATE TABLE `Customer` (
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`Id` int(11) NOT NULL,
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PRIMARY KEY (`Id`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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SELECT * FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS WHERE CONSTRAINT_SCHEMA='test';
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CONSTRAINT_CATALOG def
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CONSTRAINT_SCHEMA test
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CONSTRAINT_NAME 1
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UNIQUE_CONSTRAINT_CATALOG def
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UNIQUE_CONSTRAINT_SCHEMA test
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UNIQUE_CONSTRAINT_NAME PRIMARY
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MATCH_OPTION NONE
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UPDATE_RULE CASCADE
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DELETE_RULE RESTRICT
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TABLE_NAME Product_Order
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REFERENCED_TABLE_NAME Product
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CONSTRAINT_CATALOG def
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CONSTRAINT_SCHEMA test
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CONSTRAINT_NAME 2
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UNIQUE_CONSTRAINT_CATALOG def
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UNIQUE_CONSTRAINT_SCHEMA test
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UNIQUE_CONSTRAINT_NAME PRIMARY
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MATCH_OPTION NONE
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UPDATE_RULE RESTRICT
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DELETE_RULE RESTRICT
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TABLE_NAME Product_Order
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REFERENCED_TABLE_NAME Customer
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DROP TABLE Product_Order;
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DROP TABLE Product;
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DROP TABLE Customer;
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