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e463ee9421
Problem: SHOW CREATE TABLE printed garbage in table
name for tables having TURKISH I
(i.e. LATIN CAPITABLE LETTER I WITH DOT ABOVE)
when lower-case-table-name=1.
Reason: In some cases during lower/upper conversion in utf8,
the result string can be shorter the original string
(including the above letter). Old implementation of caseup_str()
and casedn_str() didn't handle the result length properly,
assuming that length cannot change.
This fix changes the result type of cs->cset->casedn_str()
and cs->cset->caseup_str() from VOID to UINT, to return
the result length, as well as put '\0' terminator on a
proper place.
Also, my_caseup_str_utf8() and my_casedn_str_utf8() were
rewritten not to use strlen() for performance purposes.
It was done with help of adding of new functions - my_utf8_uni_no_range()
and my_uni_utf8_no_range() - for null terminated strings.
include/m_ctype.h:
Changeing return type from void to int for caseup_str() and casedn_str()
mysql-test/r/lowercase_table.result:
Adding test case
mysql-test/t/lowercase_table.test:
Adding test case
sql/sql_parse.cc:
Set table->table.length to result of my_casedn_str().
strings/ctype-bin.c:
Changeing return type from void to int for caseup_str() and casedn_str()
strings/ctype-mb.c:
Changeing return type from void to int for caseup_str() and casedn_str()
strings/ctype-simple.c:
Changeing return type from void to int for caseup_str() and casedn_str()
strings/ctype-ucs2.c:
Changeing return type from void to int for caseup_str() and casedn_str()
strings/ctype-utf8.c:
Changeing return type from void to int for caseup_str() and casedn_str().
Optimization, to get rid of strlen():
Adding my_utf8_uni_no_range() and my_uni_utf8_no_range() - for null
terninated strings.
110 lines
2.5 KiB
Text
110 lines
2.5 KiB
Text
drop table if exists t1,t2,t3,t4;
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drop table if exists t0,t5,t6,t7,t8,t9;
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drop database if exists mysqltest;
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drop view if exists v0, v1, v2, v3, v4;
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create table T1 (id int primary key, Word varchar(40) not null, Index(Word));
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create table t4 (id int primary key, Word varchar(40) not null);
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INSERT INTO T1 VALUES (1, 'a'), (2, 'b'), (3, 'c');
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INSERT INTO T4 VALUES(1,'match');
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SELECT * FROM t1;
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id Word
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1 a
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2 b
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3 c
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SELECT T1.id from T1 LIMIT 1;
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id
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1
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SELECT T2.id from t1 as T2 LIMIT 1;
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id
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1
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SELECT * from t1 left join t4 on (test.t1.id= TEST.t4.id) where TEST.t1.id >= test.t4.id;
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id Word id Word
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1 a 1 match
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SELECT T2.id from t1 as t2 LIMIT 1;
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id
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1
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RENAME TABLE T1 TO T2;
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ALTER TABLE T2 ADD new_col int not null;
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ALTER TABLE T2 RENAME T3;
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show tables like 't_';
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Tables_in_test (t_)
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t3
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t4
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drop table t3,t4;
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create table t1 (a int);
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select count(*) from T1;
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count(*)
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0
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select count(*) from t1;
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count(*)
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0
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select count(T1.a) from t1;
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count(T1.a)
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0
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select count(bags.a) from t1 as Bags;
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count(bags.a)
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0
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drop table t1;
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create database mysqltest;
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use MYSQLTEST;
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create table t1 (a int);
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select T1.a from MYSQLTEST.T1;
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a
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select t1.a from MYSQLTEST.T1;
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a
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select mysqltest.t1.* from MYSQLTEST.t1;
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a
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select MYSQLTEST.t1.* from MYSQLTEST.t1;
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a
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select MYSQLTEST.T1.* from MYSQLTEST.T1;
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a
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select MYSQLTEST.T1.* from T1;
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a
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alter table t1 rename to T1;
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select MYSQLTEST.t1.* from MYSQLTEST.t1;
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a
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drop database mysqltest;
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use test;
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create table t1 (a int);
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create table t2 (a int);
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delete p1.*,P2.* from t1 as p1, t2 as p2 where p1.a=P2.a;
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delete P1.*,p2.* from t1 as P1, t2 as P2 where P1.a=p2.a;
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update t1 as p1, t2 as p2 SET p1.a=1,P2.a=1 where p1.a=P2.a;
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update t1 as P1, t2 as P2 SET P1.a=1,p2.a=1 where P1.a=p2.a;
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drop table t1,t2;
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create table t1 (a int);
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create table t2 (a int);
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select * from t1 c, t2 C;
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ERROR 42000: Not unique table/alias: 'C'
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select C.a, c.a from t1 c, t2 C;
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ERROR 42000: Not unique table/alias: 'C'
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drop table t1, t2;
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create table t1 (a int);
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create table t2 like T1;
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drop table t1, t2;
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show tables;
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Tables_in_test
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set names utf8;
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drop table if exists İ,İİ;
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create table İ (s1 int);
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show create table İ;
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Table Create Table
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İ CREATE TABLE `i` (
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`s1` int(11) default NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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show tables;
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Tables_in_test
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i
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drop table İ;
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create table İİ (s1 int);
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show create table İİ;
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Table Create Table
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İİ CREATE TABLE `ii` (
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`s1` int(11) default NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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show tables;
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Tables_in_test
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ii
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drop table İİ;
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set names latin1;
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End of 5.0 tests
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