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9cb75f333f
Also fixes MDEV-32025 Crashes in MDL_key::mdl_key_init with lower-case-table-names=2
Change overview:
- In changes made in MDEV-31948, MDEV-31982 the code path
which originaly worked only in case of lower-case-table-names==1
also started to work in case of lower-case-table-names==2 in a mistake.
Restoring the original check_db_name() compatible behavior
(but without re-using check_db_name() itself).
- MDEV-31978 erroneously added a wrong DBUG_ASSERT. Removing.
Details:
- In mysql_change_db() the database name should be lower-cased only
in case of lower_case_table_names==1. It should not be lower-cased
for lower_case_table_names==2. The problem was caused by MDEV-31948.
The new code version restored the pre-MDEV-31948 behavior, which
used check_db_name() behavior.
- Passing lower_case_table_names==1 instead of just lower_case_table_names
to the "casedn" parameter to DBNameBuffer constructor in sql_parse.cc
The database name should not be lower-cased for lower_case_table_names==2.
This restores pre-MDEV-31982 behavioir which used check_db_name() here.
- Adding a new data type Lex_ident_db_normalized, it stores database
names which are both checked and normalized to lower case
in case lower_case_table_names==1 and lower_case_table_names==2.
- Changing the data type for the "db" parameter to Lex_ident_db_normalized in
lock_schema_name(), lock_db_routines(), find_db_tables_and_rm_known_files().
This is to avoid incorrectly passing a non-normalized name in the future.
- Restoring the database name normalization in mysql_create_db_internal()
and mysql_rm_db_internal() before calling lock_schema_name().
The problem was caused MDEV-31982.
- Adding database name normalization in mysql_alter_db_internal()
and mysql_upgrade_db(). This fixes MDEV-32026.
- Removing a wrong assert in Create_sp_func::create_with_db() was incorrect:
DBUG_ASSERT(Lex_ident_fs(*db).ok_for_lower_case_names());
The database name comes to here checked, but not normalized
to lower case with lower-case-table-names=2.
The assert was erroneously added by MDEV-31978.
- Recording lowercase_tables2.results and lowercase_tables4.results
according to
MDEV-29446 Change SHOW CREATE TABLE to display default collations
These tests are skipped on buildbot on all platforms, so this change
was forgotten in the patch for MDEV-29446.
118 lines
4 KiB
Text
Executable file
118 lines
4 KiB
Text
Executable file
#
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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=latin1 COLLATE=latin1_swedish_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 `product_order_ibfk_1` FOREIGN KEY (`Product_Category`, `Product_Id`) REFERENCES `Product` (`Category`, `Id`) ON UPDATE CASCADE,
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CONSTRAINT `product_order_ibfk_2` FOREIGN KEY (`Customer_Id`) REFERENCES `Customer` (`Id`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_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=latin1 COLLATE=latin1_swedish_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=latin1 COLLATE=latin1_swedish_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 product_order_ibfk_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 product_order_ibfk_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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