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PROBLEMS Description:- Server variable "--lower_case_tables_names" when set to "0" on windows platform which does not support case sensitive file operations leads to problems. A warning message is printed in the error log while starting the server with "--lower_case_tables_names=0". Also according to the documentation, seting "lower_case_tables_names" to "0" on a case-insensitive filesystem might lead to index corruption. Analysis:- The problem reported in the bug is:- Creating an INNODB table 'a' and executing a query, "INSERT INTO a SELECT a FROM A;" on a server started with "--lower_case_tables_names=0" and running on a case-insensitive filesystem leads innodb to flat spin. Optimizer thinks that "a" and "A" are two different tables as the variable "lower_case_table_names" is set to "0". As a result, optimizer comes up with a plan which does not need a temporary table. If the same table is used in select and insert, a temporary table is needed. This incorrect optimizer plan leads to infinite insertions. Fix:- If the server is started with "--lower_case_tables_names" set to 0 on a case-insensitive filesystem, an error, "The server option 'lower_case_table_names'is configured to use case sensitive table names but the data directory is on a case-insensitive file system which is an unsupported combination. Please consider either using a case sensitive file system for your data directory or switching to a case-insensitive table name mode.", is printed in the server error log and the server exits.
119 lines
3.7 KiB
Text
119 lines
3.7 KiB
Text
#Server variable option 'lower_case_table_names' sets '0' as default value
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#in case sensitive filesystem. Using 'lower_case_table_names=0' in case of
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#insensitive filsystem is not allowed.
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-- source include/have_case_sensitive_file_system.inc
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--source include/have_ujis.inc
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--source include/have_innodb.inc
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--disable_warnings
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drop table if exists `Ｔ１`;
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drop table if exists `Ｔ２`;
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drop table if exists `Ｔ３`;
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drop table if exists `Ｔ４`;
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drop table if exists `Ｔ５`;
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drop table if exists `Ｔ６`;
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drop table if exists `Ｔ７`;
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drop table if exists `Ｔ８`;
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drop table if exists `Ｔ９`;
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--enable_warnings
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#
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# Test ENUM values with Japanese characters in ujis encoding
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#
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SET NAMES ujis;
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SET character_set_database = ujis;
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CREATE TABLE `Ｔ１` (`Ｃ１` ENUM('ｱ','ｲ','ｳ'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = innodb;
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CREATE TABLE `Ｔ２` (`Ｃ１` ENUM('あ','い','う'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = innodb;
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CREATE TABLE `Ｔ３` (`Ｃ１` ENUM('龔','龖','龗'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = innodb;
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CREATE TABLE `Ｔ４` (`Ｃ１` ENUM('ｱ','ｲ','ｳ'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = myisam;
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CREATE TABLE `Ｔ５` (`Ｃ１` ENUM('あ','い','う'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = myisam;
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CREATE TABLE `Ｔ６` (`Ｃ１` ENUM('龔','龖','龗'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = myisam;
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CREATE TABLE `Ｔ７` (`Ｃ１` ENUM('ｱ','ｲ','ｳ'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = MEMORY;
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CREATE TABLE `Ｔ８` (`Ｃ１` ENUM('あ','い','う'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = MEMORY;
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CREATE TABLE `Ｔ９` (`Ｃ１` ENUM('龔','龖','龗'), INDEX(`Ｃ１`)) DEFAULT CHARSET = ujis engine = MEMORY;
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INSERT INTO `Ｔ１` VALUES ('ｱ'),('ｲ'),('ｳ');
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INSERT INTO `Ｔ２` VALUES ('あ'),('い'),('う');
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INSERT INTO `Ｔ３` VALUES ('龔'),('龖'),('龗');
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INSERT INTO `Ｔ４` VALUES ('ｱ'),('ｲ'),('ｳ');
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INSERT INTO `Ｔ５` VALUES ('あ'),('い'),('う');
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INSERT INTO `Ｔ６` VALUES ('龔'),('龖'),('龗');
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INSERT INTO `Ｔ７` VALUES ('ｱ'),('ｲ'),('ｳ');
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INSERT INTO `Ｔ８` VALUES ('あ'),('い'),('う');
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INSERT INTO `Ｔ９` VALUES ('龔'),('龖'),('龗');
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SELECT * FROM `Ｔ１`;
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SELECT * FROM `Ｔ２`;
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SELECT * FROM `Ｔ３`;
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SELECT * FROM `Ｔ４`;
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SELECT * FROM `Ｔ５`;
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SELECT * FROM `Ｔ６`;
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SELECT * FROM `Ｔ７`;
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SELECT * FROM `Ｔ８`;
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SELECT * FROM `Ｔ９`;
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SHOW CREATE TABLE `Ｔ１`;
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SHOW CREATE TABLE `Ｔ２`;
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SHOW CREATE TABLE `Ｔ３`;
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SHOW CREATE TABLE `Ｔ４`;
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SHOW CREATE TABLE `Ｔ５`;
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SHOW CREATE TABLE `Ｔ６`;
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SHOW CREATE TABLE `Ｔ７`;
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SHOW CREATE TABLE `Ｔ８`;
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SHOW CREATE TABLE `Ｔ９`;
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DESC `Ｔ１`;
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DESC `Ｔ２`;
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DESC `Ｔ３`;
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DESC `Ｔ４`;
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DESC `Ｔ５`;
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DESC `Ｔ６`;
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DESC `Ｔ７`;
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DESC `Ｔ８`;
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DESC `Ｔ９`;
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#
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# Test problem with enum values after the colum with NOT NULL restriction
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#
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ALTER TABLE `Ｔ１` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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ALTER TABLE `Ｔ２` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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ALTER TABLE `Ｔ３` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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ALTER TABLE `Ｔ４` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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ALTER TABLE `Ｔ５` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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ALTER TABLE `Ｔ６` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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ALTER TABLE `Ｔ７` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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ALTER TABLE `Ｔ８` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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ALTER TABLE `Ｔ９` ADD `Ｃ２` CHAR(1) NOT NULL FIRST;
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SHOW CREATE TABLE `Ｔ１`;
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SHOW CREATE TABLE `Ｔ２`;
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SHOW CREATE TABLE `Ｔ３`;
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SHOW CREATE TABLE `Ｔ４`;
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SHOW CREATE TABLE `Ｔ５`;
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SHOW CREATE TABLE `Ｔ６`;
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SHOW CREATE TABLE `Ｔ７`;
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SHOW CREATE TABLE `Ｔ８`;
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SHOW CREATE TABLE `Ｔ９`;
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DESC `Ｔ１`;
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DESC `Ｔ２`;
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DESC `Ｔ３`;
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DESC `Ｔ４`;
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DESC `Ｔ５`;
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DESC `Ｔ６`;
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DESC `Ｔ７`;
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DESC `Ｔ８`;
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DESC `Ｔ９`;
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DROP TABLE `Ｔ１`;
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DROP TABLE `Ｔ２`;
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DROP TABLE `Ｔ３`;
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DROP TABLE `Ｔ４`;
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DROP TABLE `Ｔ５`;
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DROP TABLE `Ｔ６`;
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DROP TABLE `Ｔ７`;
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DROP TABLE `Ｔ８`;
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DROP TABLE `Ｔ９`;
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