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66398a877a
The SQL-mode PAD_CHAR_TO_FULL_LENGTH could prevent a DROP USER
statement from privileges associated with the user being dropped.
What ocurred was that reading from the User and Host fields of
the tables tables_priv or columns_priv would yield values padded
with spaces, causing a failure to match a specified user or host
('user' != 'user ');
The solution is to disregard the PAD_CHAR_TO_FULL_LENGTH mode
when iterating over and matching values in the privileges tables
for a DROP USER statement.
mysql-test/r/sql_mode.result:
Add test case result for Bug#45100.
mysql-test/t/sql_mode.test:
Add test case for Bug#45100.
sql/sql_acl.cc:
Clear MODE_PAD_CHAR_TO_FULL_LENGTH before dropping privileges.
530 lines
13 KiB
Plaintext
530 lines
13 KiB
Plaintext
drop table if exists t1,t2,v1,v2;
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drop view if exists t1,t2,v1,v2;
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CREATE TABLE `t1` (
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a int not null auto_increment,
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`pseudo` varchar(35) character set latin2 NOT NULL default '',
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`email` varchar(60) character set latin2 NOT NULL default '',
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PRIMARY KEY (a),
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UNIQUE KEY `email` USING BTREE (`email`)
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) ENGINE=HEAP CHARSET=latin1 ROW_FORMAT DYNAMIC;
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set @@sql_mode="";
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show variables like 'sql_mode';
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Variable_name Value
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sql_mode
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL AUTO_INCREMENT,
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`pseudo` varchar(35) CHARACTER SET latin2 NOT NULL DEFAULT '',
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`email` varchar(60) CHARACTER SET latin2 NOT NULL DEFAULT '',
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PRIMARY KEY (`a`),
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UNIQUE KEY `email` (`email`) USING BTREE
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) ENGINE=MEMORY DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
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set @@sql_mode="ansi_quotes";
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show variables like 'sql_mode';
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Variable_name Value
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sql_mode ANSI_QUOTES
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show create table t1;
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Table Create Table
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t1 CREATE TABLE "t1" (
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"a" int(11) NOT NULL AUTO_INCREMENT,
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"pseudo" varchar(35) CHARACTER SET latin2 NOT NULL DEFAULT '',
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"email" varchar(60) CHARACTER SET latin2 NOT NULL DEFAULT '',
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PRIMARY KEY ("a"),
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UNIQUE KEY "email" ("email") USING BTREE
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) ENGINE=MEMORY DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
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set @@sql_mode="no_table_options";
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show variables like 'sql_mode';
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Variable_name Value
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sql_mode NO_TABLE_OPTIONS
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL AUTO_INCREMENT,
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`pseudo` varchar(35) CHARACTER SET latin2 NOT NULL DEFAULT '',
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`email` varchar(60) CHARACTER SET latin2 NOT NULL DEFAULT '',
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PRIMARY KEY (`a`),
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UNIQUE KEY `email` (`email`) USING BTREE
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)
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set @@sql_mode="no_key_options";
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show variables like 'sql_mode';
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Variable_name Value
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sql_mode NO_KEY_OPTIONS
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL AUTO_INCREMENT,
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`pseudo` varchar(35) CHARACTER SET latin2 NOT NULL DEFAULT '',
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`email` varchar(60) CHARACTER SET latin2 NOT NULL DEFAULT '',
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PRIMARY KEY (`a`),
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UNIQUE KEY `email` (`email`)
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) ENGINE=MEMORY DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
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set @@sql_mode="no_field_options,mysql323,mysql40";
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show variables like 'sql_mode';
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Variable_name Value
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sql_mode NO_FIELD_OPTIONS,MYSQL323,MYSQL40,HIGH_NOT_PRECEDENCE
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL,
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`pseudo` varchar(35) NOT NULL DEFAULT '',
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`email` varchar(60) NOT NULL DEFAULT '',
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PRIMARY KEY (`a`),
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UNIQUE KEY `email` (`email`)
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) TYPE=HEAP ROW_FORMAT=DYNAMIC
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set sql_mode="postgresql,oracle,mssql,db2,maxdb";
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select @@sql_mode;
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@@sql_mode
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PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,POSTGRESQL,ORACLE,MSSQL,DB2,MAXDB,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER
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show create table t1;
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Table Create Table
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t1 CREATE TABLE "t1" (
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"a" int(11) NOT NULL,
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"pseudo" varchar(35) CHARACTER SET latin2 NOT NULL DEFAULT '',
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"email" varchar(60) CHARACTER SET latin2 NOT NULL DEFAULT '',
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PRIMARY KEY ("a"),
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UNIQUE KEY "email" ("email")
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)
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drop table t1;
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CREATE TABLE t1 (
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a char(10),
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b char(10) collate latin1_bin,
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c binary(10)
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) character set latin1;
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set @@sql_mode="";
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` char(10) DEFAULT NULL,
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`b` char(10) CHARACTER SET latin1 COLLATE latin1_bin DEFAULT NULL,
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`c` binary(10) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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set @@sql_mode="mysql323";
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` char(10) DEFAULT NULL,
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`b` char(10) binary DEFAULT NULL,
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`c` binary(10) DEFAULT NULL
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) TYPE=MyISAM
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set @@sql_mode="mysql40";
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` char(10) DEFAULT NULL,
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`b` char(10) binary DEFAULT NULL,
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`c` binary(10) DEFAULT NULL
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) TYPE=MyISAM
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drop table t1;
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set session sql_mode = '';
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create table t1 ( min_num dec(6,6) default .000001);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`min_num` decimal(6,6) DEFAULT '0.000001'
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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drop table t1 ;
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set session sql_mode = 'IGNORE_SPACE';
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create table t1 ( min_num dec(6,6) default 0.000001);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`min_num` decimal(6,6) DEFAULT '0.000001'
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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drop table t1 ;
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create table t1 ( min_num dec(6,6) default .000001);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`min_num` decimal(6,6) DEFAULT '0.000001'
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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drop table t1 ;
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set @@SQL_MODE=NULL;
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ERROR 42000: Variable 'sql_mode' can't be set to the value of 'NULL'
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set session sql_mode=ansi;
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create table t1
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(f1 integer auto_increment primary key,
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f2 timestamp default current_timestamp on update current_timestamp);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE "t1" (
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"f1" int(11) NOT NULL AUTO_INCREMENT,
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"f2" timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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PRIMARY KEY ("f1")
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)
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set session sql_mode=no_field_options;
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`f1` int(11) NOT NULL,
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`f2` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (`f1`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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drop table t1;
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SET @OLD_SQL_MODE=@@SQL_MODE, @@SQL_MODE='';
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show local variables like 'SQL_MODE';
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Variable_name Value
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sql_mode
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CREATE TABLE t1 (p int not null auto_increment, a varchar(20), primary key(p));
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INSERT t1 (a) VALUES
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('\\'),
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('\n'),
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('\b'),
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('\r'),
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('\t'),
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('\x'),
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('\a'),
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('\aa'),
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('\\a'),
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('\\aa'),
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('_'),
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('\_'),
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('\\_'),
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('\\\_'),
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('\\\\_'),
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('%'),
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('\%'),
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('\\%'),
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('\\\%'),
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('\\\\%')
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;
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SELECT p, hex(a) FROM t1;
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p hex(a)
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1 5C
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2 0A
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3 08
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4 0D
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5 09
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6 78
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7 61
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8 6161
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9 5C61
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10 5C6161
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11 5F
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12 5C5F
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13 5C5F
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14 5C5C5F
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15 5C5C5F
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16 25
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17 5C25
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18 5C25
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19 5C5C25
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20 5C5C25
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delete from t1 where a in ('\n','\r','\t', '\b');
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select
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masks.p,
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masks.a as mask,
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examples.a as example
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from
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t1 as masks
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left join t1 as examples on examples.a LIKE masks.a
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order by masks.p, example;
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p mask example
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1 \ \
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6 x x
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7 a a
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8 aa aa
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9 \a a
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10 \aa aa
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11 _ %
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11 _ a
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11 _ x
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11 _ \
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11 _ _
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12 \_ _
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13 \_ _
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14 \\_ \%
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14 \\_ \%
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14 \\_ \a
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14 \\_ \_
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14 \\_ \_
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15 \\_ \%
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15 \\_ \%
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15 \\_ \a
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15 \\_ \_
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15 \\_ \_
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16 % %
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16 % a
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16 % aa
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16 % x
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16 % \
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16 % \%
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16 % \%
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16 % \a
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16 % \aa
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16 % \\%
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16 % \\%
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16 % \\_
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16 % \\_
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16 % \_
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16 % \_
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16 % _
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17 \% %
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18 \% %
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19 \\% \
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19 \\% \%
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19 \\% \%
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19 \\% \a
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19 \\% \aa
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19 \\% \\%
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19 \\% \\%
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19 \\% \\_
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19 \\% \\_
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19 \\% \_
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19 \\% \_
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20 \\% \
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20 \\% \%
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20 \\% \%
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20 \\% \a
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20 \\% \aa
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20 \\% \\%
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20 \\% \\%
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20 \\% \\_
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20 \\% \\_
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20 \\% \_
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20 \\% \_
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DROP TABLE t1;
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SET @@SQL_MODE='NO_BACKSLASH_ESCAPES';
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show local variables like 'SQL_MODE';
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Variable_name Value
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sql_mode NO_BACKSLASH_ESCAPES
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CREATE TABLE t1 (p int not null auto_increment, a varchar(20), primary key(p));
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INSERT t1 (a) VALUES
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('\\'),
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('\n'),
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('\b'),
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('\r'),
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('\t'),
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('\x'),
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('\a'),
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('\aa'),
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('\\a'),
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('\\aa'),
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('_'),
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('\_'),
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('\\_'),
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('\\\_'),
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('\\\\_'),
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('%'),
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('\%'),
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('\\%'),
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('\\\%'),
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('\\\\%')
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;
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SELECT p, hex(a) FROM t1;
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p hex(a)
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1 5C5C
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2 5C6E
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3 5C62
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4 5C72
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5 5C74
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6 5C78
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7 5C61
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8 5C6161
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9 5C5C61
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10 5C5C6161
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11 5F
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12 5C5F
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13 5C5C5F
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14 5C5C5C5F
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15 5C5C5C5C5F
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16 25
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17 5C25
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18 5C5C25
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19 5C5C5C25
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20 5C5C5C5C25
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delete from t1 where a in ('\n','\r','\t', '\b');
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select
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masks.p,
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masks.a as mask,
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examples.a as example
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from
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t1 as masks
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left join t1 as examples on examples.a LIKE masks.a
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order by masks.p, example;
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p mask example
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1 \\ \\
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6 \x \x
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7 \a \a
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8 \aa \aa
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9 \\a \\a
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10 \\aa \\aa
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11 _ %
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11 _ _
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12 \_ \%
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12 \_ \a
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12 \_ \x
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12 \_ \\
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12 \_ \_
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13 \\_ \\%
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13 \\_ \\a
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13 \\_ \\_
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14 \\\_ \\\%
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14 \\\_ \\\_
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15 \\\\_ \\\\%
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15 \\\\_ \\\\_
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16 % %
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16 % \%
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16 % \a
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16 % \aa
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16 % \x
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16 % \\
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16 % \\%
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16 % \\a
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16 % \\aa
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16 % \\\%
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16 % \\\\%
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16 % \\\\_
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16 % \\\_
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16 % \\_
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16 % \_
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16 % _
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17 \% \%
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17 \% \a
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17 \% \aa
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17 \% \x
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17 \% \\
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17 \% \\%
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17 \% \\a
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17 \% \\aa
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17 \% \\\%
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17 \% \\\\%
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17 \% \\\\_
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17 \% \\\_
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17 \% \\_
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17 \% \_
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18 \\% \\
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18 \\% \\%
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18 \\% \\a
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18 \\% \\aa
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18 \\% \\\%
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18 \\% \\\\%
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18 \\% \\\\_
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18 \\% \\\_
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18 \\% \\_
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19 \\\% \\\%
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19 \\\% \\\\%
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19 \\\% \\\\_
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19 \\\% \\\_
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20 \\\\% \\\\%
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20 \\\\% \\\\_
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DROP TABLE t1;
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SET @@SQL_MODE='NO_BACKSLASH_ESCAPES';
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SELECT 'a\\b', 'a\\\"b', 'a''\\b', 'a''\\\"b';
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a\\b a\\\"b a'\\b a'\\\"b
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a\\b a\\\"b a'\\b a'\\\"b
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SELECT "a\\b", "a\\\'b", "a""\\b", "a""\\\'b";
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a\\b a\\\'b a"\\b a"\\\'b
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a\\b a\\\'b a"\\b a"\\\'b
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SET @@SQL_MODE='';
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SELECT 'a\\b', 'a\\\"b', 'a''\\b', 'a''\\\"b';
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a\b a\"b a'\b a'\"b
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a\b a\"b a'\b a'\"b
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SELECT "a\\b", "a\\\'b", "a""\\b", "a""\\\'b";
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a\b a\'b a"\b a"\'b
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a\b a\'b a"\b a"\'b
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SET @@SQL_MODE='';
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create function `foo` () returns int return 5;
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show create function `foo`;
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Function sql_mode Create Function character_set_client collation_connection Database Collation
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foo CREATE DEFINER=`root`@`localhost` FUNCTION `foo`() RETURNS int(11)
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return 5 latin1 latin1_swedish_ci latin1_swedish_ci
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SET @@SQL_MODE='ANSI_QUOTES';
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show create function `foo`;
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Function sql_mode Create Function character_set_client collation_connection Database Collation
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foo CREATE DEFINER=`root`@`localhost` FUNCTION `foo`() RETURNS int(11)
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return 5 latin1 latin1_swedish_ci latin1_swedish_ci
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drop function `foo`;
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create function `foo` () returns int return 5;
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show create function `foo`;
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Function sql_mode Create Function character_set_client collation_connection Database Collation
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foo ANSI_QUOTES CREATE DEFINER="root"@"localhost" FUNCTION "foo"() RETURNS int(11)
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return 5 latin1 latin1_swedish_ci latin1_swedish_ci
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SET @@SQL_MODE='';
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show create function `foo`;
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Function sql_mode Create Function character_set_client collation_connection Database Collation
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foo ANSI_QUOTES CREATE DEFINER="root"@"localhost" FUNCTION "foo"() RETURNS int(11)
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return 5 latin1 latin1_swedish_ci latin1_swedish_ci
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drop function `foo`;
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SET @@SQL_MODE='';
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create table t1 (a int);
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create table t2 (a int);
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create view v1 as select a from t1;
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show create view v1;
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View Create View character_set_client collation_connection
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v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` latin1 latin1_swedish_ci
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SET @@SQL_MODE='ANSI_QUOTES';
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show create view v1;
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View Create View character_set_client collation_connection
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v1 CREATE ALGORITHM=UNDEFINED DEFINER="root"@"localhost" SQL SECURITY DEFINER VIEW "v1" AS select "t1"."a" AS "a" from "t1" latin1 latin1_swedish_ci
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create view v2 as select a from t2 where a in (select a from v1);
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drop view v2, v1;
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drop table t1, t2;
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select @@sql_mode;
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|
@@sql_mode
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ANSI_QUOTES
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set sql_mode=2097152;
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select @@sql_mode;
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@@sql_mode
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STRICT_TRANS_TABLES
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set sql_mode=4194304;
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select @@sql_mode;
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@@sql_mode
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STRICT_ALL_TABLES
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set sql_mode=16384+(65536*4);
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select @@sql_mode;
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@@sql_mode
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REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,NO_TABLE_OPTIONS,ANSI
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set sql_mode=2147483648*2;
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|
ERROR 42000: Variable 'sql_mode' can't be set to the value of '4294967296'
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select @@sql_mode;
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@@sql_mode
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REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,NO_TABLE_OPTIONS,ANSI
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set sql_mode=PAD_CHAR_TO_FULL_LENGTH;
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|
create table t1 (a int auto_increment primary key, b char(5));
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|
insert into t1 (b) values('a'),('b\t'),('c ');
|
|
select concat('x',b,'x') from t1;
|
|
concat('x',b,'x')
|
|
xa x
|
|
xb x
|
|
xc x
|
|
set sql_mode=0;
|
|
select concat('x',b,'x') from t1;
|
|
concat('x',b,'x')
|
|
xax
|
|
xb x
|
|
xcx
|
|
drop table t1;
|
|
SET @@SQL_MODE=@OLD_SQL_MODE;
|
|
create user mysqltest_32753@localhost;
|
|
set @OLD_SQL_MODE=@@SESSION.SQL_MODE;
|
|
set session sql_mode='PAD_CHAR_TO_FULL_LENGTH';
|
|
flush privileges;
|
|
select current_user();
|
|
current_user()
|
|
mysqltest_32753@localhost
|
|
set session sql_mode=@OLD_SQL_MODE;
|
|
flush privileges;
|
|
drop user mysqltest_32753@localhost;
|
|
DROP TABLE IF EXISTS t1,t2;
|
|
CREATE USER 'user_PCTFL'@'localhost' identified by 'PWD';
|
|
CREATE USER 'user_no_PCTFL'@'localhost' identified by 'PWD';
|
|
CREATE TABLE t1 (f1 BIGINT);
|
|
CREATE TABLE t2 (f1 CHAR(3) NOT NULL, f2 CHAR(20));
|
|
GRANT ALL ON t1 TO 'user_PCTFL'@'localhost','user_no_PCTFL'@'localhost';
|
|
GRANT SELECT(f1) ON t2 TO 'user_PCTFL'@'localhost','user_no_PCTFL'@'localhost';
|
|
SET @OLD_SQL_MODE = @@SESSION.SQL_MODE;
|
|
SET SESSION SQL_MODE = 'PAD_CHAR_TO_FULL_LENGTH';
|
|
DROP USER 'user_PCTFL'@'localhost';
|
|
SET SESSION SQL_MODE = @OLD_SQL_MODE;
|
|
DROP USER 'user_no_PCTFL'@'localhost';
|
|
FLUSH PRIVILEGES;
|
|
SELECT * FROM mysql.db WHERE Host = 'localhost' AND User LIKE 'user_%PCTFL';
|
|
Host Db User Select_priv Insert_priv Update_priv Delete_priv Create_priv Drop_priv Grant_priv References_priv Index_priv Alter_priv Create_tmp_table_priv Lock_tables_priv Create_view_priv Show_view_priv Create_routine_priv Alter_routine_priv Execute_priv Event_priv Trigger_priv
|
|
SELECT * FROM mysql.tables_priv WHERE Host = 'localhost' AND User LIKE 'user_%PCTFL';
|
|
Host Db User Table_name Grantor Timestamp Table_priv Column_priv
|
|
SELECT * FROM mysql.columns_priv WHERE Host = 'localhost' AND User LIKE 'user_%PCTFL';
|
|
Host Db User Table_name Column_name Timestamp Column_priv
|
|
DROP TABLE t1;
|
|
DROP TABLE t2;
|