Commit 14912660 authored by unknown's avatar unknown
Browse files

Bug#13046: LIKE pattern matching using prefix 

             index doesn't return correct result
item_cmpfunc.cc:
  Use charset of LIKE to decide whether
  to use 8bit or Unicode "escape" value.
  But use charset of "escape" to scan escape character.
strings/ctype-xxx.c:
  We cannot reduce "end" pointer using charpos(),
  because of possible escape characters in the string.
  Limit the loop using count of written characters instead.
ctype_like_escape.inc:
  new file
mysql-test/t/ctype_xxx:
mysql-test/r/ctype_xxx:
  Adding test case.


strings/ctype-big5.c:
  Bug#13046: LIKE pattern matching using prefix index doesn't return correct result
  We cannot change "end" pointer using charpos(),
  because of possible escape characters.
  Use limit by count of written characters instead.
strings/ctype-cp932.c:
  Bug#13046: LIKE pattern matching using prefix index doesn't return correct
  result
  We cannot change "end" pointer using charpos(),
  because of possible escape characters.
  Use limit by count of written characters instead
strings/ctype-gbk.c:
  Bug#13046: LIKE pattern matching using prefix index doesn't return correct
  result
  We cannot change "end" pointer using charpos(),
  because of possible escape characters.
  Use limit by count of written characters instead
strings/ctype-mb.c:
  Bug#13046: LIKE pattern matching using prefix index doesn't return correct
  result
  We cannot change "end" pointer using charpos(),
  because of possible escape characters.
  Use limit by count of written characters instead
strings/ctype-simple.c:
  Bug#13046: LIKE pattern matching using prefix index doesn't return correct
  result
  We cannot change "end" pointer using charpos(),
  because of possible escape characters.
  Use limit by count of written characters instead
strings/ctype-sjis.c:
  Bug#13046: LIKE pattern matching using prefix index doesn't return correct
  result
  We cannot change "end" pointer using charpos(),
  because of possible escape characters.
  Use limit by count of written characters instead
strings/ctype-tis620.c:
  Bug#13046: LIKE pattern matching using prefix index doesn't return correct
  result
  We cannot change "end" pointer using charpos(),
  because of possible escape characters.
  Use limit by count of written characters instead
strings/ctype-ucs2.c:
  Bug#13046: LIKE pattern matching using prefix index doesn't return correct
  result
  We cannot change "end" pointer using charpos(),
  because of possible escape characters.
  Use limit by count of written characters instead
mysql-test/t/ctype_big5.test:
  Adding test case.
mysql-test/t/ctype_cp932.test:
  Adding test case.
mysql-test/t/ctype_gbk.test:
  Adding test case.
mysql-test/t/ctype_latin1.test:
  Adding test case.
mysql-test/t/ctype_sjis.test:
  Adding test case.
mysql-test/t/ctype_tis620.test:
  Adding test case.
mysql-test/t/ctype_uca.test:
  Adding test case.
mysql-test/t/ctype_ucs.test:
  Adding test case.
mysql-test/t/ctype_ujis.test:
  Adding test case.
mysql-test/t/ctype_utf8.test:
  Adding test case.
mysql-test/r/ctype_big5.result:
  Adding test case.
mysql-test/r/ctype_cp932.result:
  Adding test case.
mysql-test/r/ctype_gbk.result:
  Adding test case.
mysql-test/r/ctype_latin1.result:
  Adding test case.
mysql-test/r/ctype_sjis.result:
  Adding test case.
mysql-test/r/ctype_tis620.result:
  Adding test case.
mysql-test/r/ctype_uca.result:
  Adding test case.
mysql-test/r/ctype_ucs.result:
  Adding test case.
mysql-test/r/ctype_ujis.result:
  Adding test case.
mysql-test/r/ctype_utf8.result:
  Adding test case.
sql/item_cmpfunc.cc:
  More fixes.
parent 4014d76c

mysql-test/include/ctype_like_escape.inc

0 → 100644
+18 −0
Original line number Diff line number Diff line 
#

# Bugs: #13046:

# LIKE pattern matching using prefix index doesn't return correct result

#

select @@collation_connection;

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

-- should return ab_def

select c1 as c1u from t1 where c1 like 'ab\_def';

-- should return ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

drop table t1;

mysql-test/r/ctype_big5.result

+36 −0
Original line number Diff line number Diff line
@@ -89,6 +89,24 @@ select c1 from t1 where c1 like 'abcde111%' order by c1; 
c1

abcde111

drop table t1;

select @@collation_connection;

@@collation_connection

big5_chinese_ci

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

select c1 as c1u from t1 where c1 like 'ab\_def';

c1u

ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

c2h

ab_def

drop table t1;

SET collation_connection='big5_bin';

create table t1 select repeat('a',4000) a;

delete from t1;
@@ -121,6 +139,24 @@ select c1 from t1 where c1 like 'abcde111%' order by c1; 
c1

abcde111

drop table t1;

select @@collation_connection;

@@collation_connection

big5_bin

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

select c1 as c1u from t1 where c1 like 'ab\_def';

c1u

ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

c2h

ab_def

drop table t1;

SET NAMES big5;

CREATE TABLE t1 (a text) character set big5;

INSERT INTO t1 VALUES ('');

mysql-test/r/ctype_cp932.result

+36 −0
Original line number Diff line number Diff line
@@ -8624,6 +8624,24 @@ select c1 from t1 where c1 like 'abcde111%' order by c1; 
c1

abcde111

drop table t1;

select @@collation_connection;

@@collation_connection

cp932_japanese_ci

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

select c1 as c1u from t1 where c1 like 'ab\_def';

c1u

ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

c2h

ab_def

drop table t1;

SET collation_connection='cp932_bin';

create table t1 select repeat('a',4000) a;

delete from t1;
@@ -8656,3 +8674,21 @@ select c1 from t1 where c1 like 'abcde111%' order by c1; 
c1

abcde111

drop table t1;

select @@collation_connection;

@@collation_connection

cp932_bin

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

select c1 as c1u from t1 where c1 like 'ab\_def';

c1u

ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

c2h

ab_def

drop table t1;

mysql-test/r/ctype_gbk.result

+36 −0
Original line number Diff line number Diff line
@@ -89,6 +89,24 @@ select c1 from t1 where c1 like 'abcde111%' order by c1; 
c1

abcde111

drop table t1;

select @@collation_connection;

@@collation_connection

gbk_chinese_ci

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

select c1 as c1u from t1 where c1 like 'ab\_def';

c1u

ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

c2h

ab_def

drop table t1;

SET collation_connection='gbk_bin';

create table t1 select repeat('a',4000) a;

delete from t1;
@@ -121,6 +139,24 @@ select c1 from t1 where c1 like 'abcde111%' order by c1; 
c1

abcde111

drop table t1;

select @@collation_connection;

@@collation_connection

gbk_bin

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

select c1 as c1u from t1 where c1 like 'ab\_def';

c1u

ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

c2h

ab_def

drop table t1;

SET NAMES gbk;

CREATE TABLE t1 (a text) character set gbk;

INSERT INTO t1 VALUES (0xA3A0),(0xA1A1);

mysql-test/r/ctype_latin1.result

+36 −0
Original line number Diff line number Diff line
@@ -315,6 +315,24 @@ latin1_swedish_ci 6109 
latin1_swedish_ci	61

latin1_swedish_ci	6120

drop table t1;

select @@collation_connection;

@@collation_connection

latin1_swedish_ci

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

select c1 as c1u from t1 where c1 like 'ab\_def';

c1u

ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

c2h

ab_def

drop table t1;

SET collation_connection='latin1_bin';

create table t1 select repeat('a',4000) a;

delete from t1;
@@ -325,6 +343,24 @@ latin1_bin 6109 
latin1_bin	61

latin1_bin	6120

drop table t1;

select @@collation_connection;

@@collation_connection

latin1_bin

create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;

insert into t1 values('abcdef');

insert into t1 values('_bcdef');

insert into t1 values('a_cdef');

insert into t1 values('ab_def');

insert into t1 values('abc_ef');

insert into t1 values('abcd_f');

insert into t1 values('abcde_');

select c1 as c1u from t1 where c1 like 'ab\_def';

c1u

ab_def

select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';

c2h

ab_def

drop table t1;

CREATE TABLE a (a int);

ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'a (a int)' at line 1

SELECT 'a' as str;